Code
P1110
ALFA ROMEO
P — Powertrain
A/C control interrupted | A/C signal disconnected
AI status
Completed
Completed
100%
Causes
- Broken, chafed, or disconnected wiring harness between ECU, A/C pressure switch/sensor, or compressor clutch
- Corroded or poorly seated connector at A/C pressure sensor/switch, compressor clutch, HVAC control module, or ECU
- Faulty A/C pressure sensor/switch (open circuit or intermittent)
- Failed compressor clutch coil or internal open circuit
- Blown fuse or failed A/C compressor relay
- ECU or HVAC control module fault or lost CAN/communication
Symptoms
- A/C compressor does not engage
- No cold air from vents or reduced cooling
- HVAC may display A/C fault or inoperative message
- Cooling fans may not operate as expected while A/C is requested
- Possible stored related DTCs for pressure sensor, clutch circuit, or communications
What to check
- Read and record all stored and pending DTCs and freeze-frame data with a scan tool; note related codes
- Visually inspect A/C wiring, connectors, and grounds for damage, corrosion, or loose pins
- Check relevant fuses and A/C compressor relay for correct operation
- Verify power and ground at the compressor clutch connector with ignition ON and A/C request active
- Measure resistance of the compressor clutch coil with engine off
- Check continuity between the A/C pressure switch/sensor and the ECU connector
Signal parameters
- Compressor clutch coil resistance (typical): ~2–6 Ω (measure with engine off) — subject to model variation
- Compressor clutch supply voltage when A/C requested: ~11–14 V at connector (or control side switched to ground depending on vehicle)
- Clutch engage current draw when operating: commonly 4–25 A — use clamp meter to verify not excessive
- A/C pressure switch/sensor: continuity or switching expected in normal pressure range; sensor output voltage varies by model (0–5 V analog or switched open/closed)
- Low-pressure cut-out (typical): ~1.5–3 bar (≈22–45 psi) — prevents clutch engagement at very low charge
- High-pressure cut-out (typical): ~18–25 bar (≈260–360 psi) — prevents engagement if pressure too high
Diagnostic algorithm
- Connect a capable scan tool, read all codes, and note any related or communication DTCs. Attempt to command the A/C from the tool and observe replies.
- Perform a visual inspection of A/C harnesses, connectors, and grounding points (compressor, pressure switch, ECU, HVAC control). Repair obvious damage.
- Check fuses and relay for the A/C compressor circuit. Replace or swap with identical known-good relay for test if uncertain.
- With ignition ON and A/C requested, back-probe the compressor clutch connector: verify presence of battery voltage or switched ground depending on vehicle wiring. If no command signal, trace upstream to relay/ECU.
- With engine off, measure clutch coil resistance. If open or out-of-spec, replace clutch/assembly.
- Test the A/C pressure switch/sensor: check continuity/switching or measure sensor voltage while monitoring system pressure with a manifold gauge. Replace if open or out-of-range.
- If wiring and components test good, check continuity from component connectors to the ECU connector and verify ECU grounds. Repair any open or high-resistance circuits.
- If communication-related codes exist, verify CAN bus integrity and module addressing; repair as needed or consult wiring diagrams for module-specific tests.
- As a controlled test only, and with proper fusing and safety precautions, apply 12 V to clutch coil to verify clutch operation (use a fused jumper). If the clutch engages when directly powered, fault is upstream (wiring, relay, or ECU).
- After repairs, clear codes, re-test A/C operation and monitor for recurrence. If intermittent or ECU suspected, consult Alfa Romeo technical service info before ECU replacement.
Likely causes
- Open or intermittent circuit in the compressor-clutch control circuit
- Corroded connector at the A/C pressure switch or clutch connector causing intermittent loss of signal
- Failed A/C pressure sensor that is not reporting pressure or is open
- Blown fuse or stuck/failed A/C relay preventing control voltage to the clutch
- Communication fault on vehicle data bus preventing the A/C request from reaching the ECU
Fault status
Status
A/C control interrupted — A/C request or feedback signal disconnected/interrupted. Compressor may be disabled until circuit or communication fault is repaired.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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Code
P1110
CITROEN
P — Powertrain
A/C control malfunction
AI status
Completed
Completed
100%
Causes
- Broken, chafed, or disconnected wiring harness between ECU, A/C pressure switch/sensor, or compressor clutch
- Corroded or poorly seated connector at A/C pressure sensor/switch, compressor clutch, HVAC control module, or ECU
- Faulty A/C pressure sensor/switch (open circuit or intermittent)
- Failed compressor clutch coil or internal open circuit
- Blown fuse or failed A/C compressor relay
- ECU or HVAC control module fault or lost CAN/communication
Symptoms
- A/C compressor does not engage
- No cold air from vents or reduced cooling
- HVAC may display A/C fault or inoperative message
- Cooling fans may not operate as expected while A/C is requested
- Possible stored related DTCs for pressure sensor, clutch circuit, or communications
What to check
- Read and record all stored and pending DTCs and freeze-frame data with a scan tool; note related codes
- Visually inspect A/C wiring, connectors, and grounds for damage, corrosion, or loose pins
- Check relevant fuses and A/C compressor relay for correct operation
- Verify power and ground at the compressor clutch connector with ignition ON and A/C request active
- Measure resistance of the compressor clutch coil with engine off
- Check continuity between the A/C pressure switch/sensor and the ECU connector
Signal parameters
- Compressor clutch coil resistance (typical): ~2–6 Ω (measure with engine off) — subject to model variation
- Compressor clutch supply voltage when A/C requested: ~11–14 V at connector (or control side switched to ground depending on vehicle)
- Clutch engage current draw when operating: commonly 4–25 A — use clamp meter to verify not excessive
- A/C pressure switch/sensor: continuity or switching expected in normal pressure range; sensor output voltage varies by model (0–5 V analog or switched open/closed)
- Low-pressure cut-out (typical): ~1.5–3 bar (≈22–45 psi) — prevents clutch engagement at very low charge
- High-pressure cut-out (typical): ~18–25 bar (≈260–360 psi) — prevents engagement if pressure too high
Diagnostic algorithm
- Connect a capable scan tool, read all codes, and note any related or communication DTCs. Attempt to command the A/C from the tool and observe replies.
- Perform a visual inspection of A/C harnesses, connectors, and grounding points (compressor, pressure switch, ECU, HVAC control). Repair obvious damage.
- Check fuses and relay for the A/C compressor circuit. Replace or swap with identical known-good relay for test if uncertain.
- With ignition ON and A/C requested, back-probe the compressor clutch connector: verify presence of battery voltage or switched ground depending on vehicle wiring. If no command signal, trace upstream to relay/ECU.
- With engine off, measure clutch coil resistance. If open or out-of-spec, replace clutch/assembly.
- Test the A/C pressure switch/sensor: check continuity/switching or measure sensor voltage while monitoring system pressure with a manifold gauge. Replace if open or out-of-range.
- If wiring and components test good, check continuity from component connectors to the ECU connector and verify ECU grounds. Repair any open or high-resistance circuits.
- If communication-related codes exist, verify CAN bus integrity and module addressing; repair as needed or consult wiring diagrams for module-specific tests.
- As a controlled test only, and with proper fusing and safety precautions, apply 12 V to clutch coil to verify clutch operation (use a fused jumper). If the clutch engages when directly powered, fault is upstream (wiring, relay, or ECU).
- After repairs, clear codes, re-test A/C operation and monitor for recurrence. If intermittent or ECU suspected, consult Alfa Romeo technical service info before ECU replacement.
Likely causes
- Open or intermittent circuit in the compressor-clutch control circuit
- Corroded connector at the A/C pressure switch or clutch connector causing intermittent loss of signal
- Failed A/C pressure sensor that is not reporting pressure or is open
- Blown fuse or stuck/failed A/C relay preventing control voltage to the clutch
- Communication fault on vehicle data bus preventing the A/C request from reaching the ECU
Fault status
Status
A/C control interrupted — A/C request or feedback signal disconnected/interrupted. Compressor may be disabled until circuit or communication fault is repaired.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
Similar codes
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Code
P1110
DAEWOO
P — Powertrain
FUEL PUMP - STUCK
AI status
Completed
Completed
100%
Causes
- Broken, chafed, or disconnected wiring harness between ECU, A/C pressure switch/sensor, or compressor clutch
- Corroded or poorly seated connector at A/C pressure sensor/switch, compressor clutch, HVAC control module, or ECU
- Faulty A/C pressure sensor/switch (open circuit or intermittent)
- Failed compressor clutch coil or internal open circuit
- Blown fuse or failed A/C compressor relay
- ECU or HVAC control module fault or lost CAN/communication
Symptoms
- A/C compressor does not engage
- No cold air from vents or reduced cooling
- HVAC may display A/C fault or inoperative message
- Cooling fans may not operate as expected while A/C is requested
- Possible stored related DTCs for pressure sensor, clutch circuit, or communications
What to check
- Read and record all stored and pending DTCs and freeze-frame data with a scan tool; note related codes
- Visually inspect A/C wiring, connectors, and grounds for damage, corrosion, or loose pins
- Check relevant fuses and A/C compressor relay for correct operation
- Verify power and ground at the compressor clutch connector with ignition ON and A/C request active
- Measure resistance of the compressor clutch coil with engine off
- Check continuity between the A/C pressure switch/sensor and the ECU connector
Signal parameters
- Compressor clutch coil resistance (typical): ~2–6 Ω (measure with engine off) — subject to model variation
- Compressor clutch supply voltage when A/C requested: ~11–14 V at connector (or control side switched to ground depending on vehicle)
- Clutch engage current draw when operating: commonly 4–25 A — use clamp meter to verify not excessive
- A/C pressure switch/sensor: continuity or switching expected in normal pressure range; sensor output voltage varies by model (0–5 V analog or switched open/closed)
- Low-pressure cut-out (typical): ~1.5–3 bar (≈22–45 psi) — prevents clutch engagement at very low charge
- High-pressure cut-out (typical): ~18–25 bar (≈260–360 psi) — prevents engagement if pressure too high
Diagnostic algorithm
- Connect a capable scan tool, read all codes, and note any related or communication DTCs. Attempt to command the A/C from the tool and observe replies.
- Perform a visual inspection of A/C harnesses, connectors, and grounding points (compressor, pressure switch, ECU, HVAC control). Repair obvious damage.
- Check fuses and relay for the A/C compressor circuit. Replace or swap with identical known-good relay for test if uncertain.
- With ignition ON and A/C requested, back-probe the compressor clutch connector: verify presence of battery voltage or switched ground depending on vehicle wiring. If no command signal, trace upstream to relay/ECU.
- With engine off, measure clutch coil resistance. If open or out-of-spec, replace clutch/assembly.
- Test the A/C pressure switch/sensor: check continuity/switching or measure sensor voltage while monitoring system pressure with a manifold gauge. Replace if open or out-of-range.
- If wiring and components test good, check continuity from component connectors to the ECU connector and verify ECU grounds. Repair any open or high-resistance circuits.
- If communication-related codes exist, verify CAN bus integrity and module addressing; repair as needed or consult wiring diagrams for module-specific tests.
- As a controlled test only, and with proper fusing and safety precautions, apply 12 V to clutch coil to verify clutch operation (use a fused jumper). If the clutch engages when directly powered, fault is upstream (wiring, relay, or ECU).
- After repairs, clear codes, re-test A/C operation and monitor for recurrence. If intermittent or ECU suspected, consult Alfa Romeo technical service info before ECU replacement.
Likely causes
- Open or intermittent circuit in the compressor-clutch control circuit
- Corroded connector at the A/C pressure switch or clutch connector causing intermittent loss of signal
- Failed A/C pressure sensor that is not reporting pressure or is open
- Blown fuse or stuck/failed A/C relay preventing control voltage to the clutch
- Communication fault on vehicle data bus preventing the A/C request from reaching the ECU
Fault status
Status
A/C control interrupted — A/C request or feedback signal disconnected/interrupted. Compressor may be disabled until circuit or communication fault is repaired.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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Code
P1110
DS
P — Powertrain
A/C control malfunction
AI status
Completed
Completed
100%
Causes
- Broken, chafed, or disconnected wiring harness between ECU, A/C pressure switch/sensor, or compressor clutch
- Corroded or poorly seated connector at A/C pressure sensor/switch, compressor clutch, HVAC control module, or ECU
- Faulty A/C pressure sensor/switch (open circuit or intermittent)
- Failed compressor clutch coil or internal open circuit
- Blown fuse or failed A/C compressor relay
- ECU or HVAC control module fault or lost CAN/communication
Symptoms
- A/C compressor does not engage
- No cold air from vents or reduced cooling
- HVAC may display A/C fault or inoperative message
- Cooling fans may not operate as expected while A/C is requested
- Possible stored related DTCs for pressure sensor, clutch circuit, or communications
What to check
- Read and record all stored and pending DTCs and freeze-frame data with a scan tool; note related codes
- Visually inspect A/C wiring, connectors, and grounds for damage, corrosion, or loose pins
- Check relevant fuses and A/C compressor relay for correct operation
- Verify power and ground at the compressor clutch connector with ignition ON and A/C request active
- Measure resistance of the compressor clutch coil with engine off
- Check continuity between the A/C pressure switch/sensor and the ECU connector
Signal parameters
- Compressor clutch coil resistance (typical): ~2–6 Ω (measure with engine off) — subject to model variation
- Compressor clutch supply voltage when A/C requested: ~11–14 V at connector (or control side switched to ground depending on vehicle)
- Clutch engage current draw when operating: commonly 4–25 A — use clamp meter to verify not excessive
- A/C pressure switch/sensor: continuity or switching expected in normal pressure range; sensor output voltage varies by model (0–5 V analog or switched open/closed)
- Low-pressure cut-out (typical): ~1.5–3 bar (≈22–45 psi) — prevents clutch engagement at very low charge
- High-pressure cut-out (typical): ~18–25 bar (≈260–360 psi) — prevents engagement if pressure too high
Diagnostic algorithm
- Connect a capable scan tool, read all codes, and note any related or communication DTCs. Attempt to command the A/C from the tool and observe replies.
- Perform a visual inspection of A/C harnesses, connectors, and grounding points (compressor, pressure switch, ECU, HVAC control). Repair obvious damage.
- Check fuses and relay for the A/C compressor circuit. Replace or swap with identical known-good relay for test if uncertain.
- With ignition ON and A/C requested, back-probe the compressor clutch connector: verify presence of battery voltage or switched ground depending on vehicle wiring. If no command signal, trace upstream to relay/ECU.
- With engine off, measure clutch coil resistance. If open or out-of-spec, replace clutch/assembly.
- Test the A/C pressure switch/sensor: check continuity/switching or measure sensor voltage while monitoring system pressure with a manifold gauge. Replace if open or out-of-range.
- If wiring and components test good, check continuity from component connectors to the ECU connector and verify ECU grounds. Repair any open or high-resistance circuits.
- If communication-related codes exist, verify CAN bus integrity and module addressing; repair as needed or consult wiring diagrams for module-specific tests.
- As a controlled test only, and with proper fusing and safety precautions, apply 12 V to clutch coil to verify clutch operation (use a fused jumper). If the clutch engages when directly powered, fault is upstream (wiring, relay, or ECU).
- After repairs, clear codes, re-test A/C operation and monitor for recurrence. If intermittent or ECU suspected, consult Alfa Romeo technical service info before ECU replacement.
Likely causes
- Open or intermittent circuit in the compressor-clutch control circuit
- Corroded connector at the A/C pressure switch or clutch connector causing intermittent loss of signal
- Failed A/C pressure sensor that is not reporting pressure or is open
- Blown fuse or stuck/failed A/C relay preventing control voltage to the clutch
- Communication fault on vehicle data bus preventing the A/C request from reaching the ECU
Fault status
Status
A/C control interrupted — A/C request or feedback signal disconnected/interrupted. Compressor may be disabled until circuit or communication fault is repaired.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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Code
P1110
FIAT
P — Powertrain
A/C control interrupted | A/C signal disconnected
AI status
Completed
Completed
100%
Causes
- Broken, chafed, or disconnected wiring harness between ECU, A/C pressure switch/sensor, or compressor clutch
- Corroded or poorly seated connector at A/C pressure sensor/switch, compressor clutch, HVAC control module, or ECU
- Faulty A/C pressure sensor/switch (open circuit or intermittent)
- Failed compressor clutch coil or internal open circuit
- Blown fuse or failed A/C compressor relay
- ECU or HVAC control module fault or lost CAN/communication
Symptoms
- A/C compressor does not engage
- No cold air from vents or reduced cooling
- HVAC may display A/C fault or inoperative message
- Cooling fans may not operate as expected while A/C is requested
- Possible stored related DTCs for pressure sensor, clutch circuit, or communications
What to check
- Read and record all stored and pending DTCs and freeze-frame data with a scan tool; note related codes
- Visually inspect A/C wiring, connectors, and grounds for damage, corrosion, or loose pins
- Check relevant fuses and A/C compressor relay for correct operation
- Verify power and ground at the compressor clutch connector with ignition ON and A/C request active
- Measure resistance of the compressor clutch coil with engine off
- Check continuity between the A/C pressure switch/sensor and the ECU connector
Signal parameters
- Compressor clutch coil resistance (typical): ~2–6 Ω (measure with engine off) — subject to model variation
- Compressor clutch supply voltage when A/C requested: ~11–14 V at connector (or control side switched to ground depending on vehicle)
- Clutch engage current draw when operating: commonly 4–25 A — use clamp meter to verify not excessive
- A/C pressure switch/sensor: continuity or switching expected in normal pressure range; sensor output voltage varies by model (0–5 V analog or switched open/closed)
- Low-pressure cut-out (typical): ~1.5–3 bar (≈22–45 psi) — prevents clutch engagement at very low charge
- High-pressure cut-out (typical): ~18–25 bar (≈260–360 psi) — prevents engagement if pressure too high
Diagnostic algorithm
- Connect a capable scan tool, read all codes, and note any related or communication DTCs. Attempt to command the A/C from the tool and observe replies.
- Perform a visual inspection of A/C harnesses, connectors, and grounding points (compressor, pressure switch, ECU, HVAC control). Repair obvious damage.
- Check fuses and relay for the A/C compressor circuit. Replace or swap with identical known-good relay for test if uncertain.
- With ignition ON and A/C requested, back-probe the compressor clutch connector: verify presence of battery voltage or switched ground depending on vehicle wiring. If no command signal, trace upstream to relay/ECU.
- With engine off, measure clutch coil resistance. If open or out-of-spec, replace clutch/assembly.
- Test the A/C pressure switch/sensor: check continuity/switching or measure sensor voltage while monitoring system pressure with a manifold gauge. Replace if open or out-of-range.
- If wiring and components test good, check continuity from component connectors to the ECU connector and verify ECU grounds. Repair any open or high-resistance circuits.
- If communication-related codes exist, verify CAN bus integrity and module addressing; repair as needed or consult wiring diagrams for module-specific tests.
- As a controlled test only, and with proper fusing and safety precautions, apply 12 V to clutch coil to verify clutch operation (use a fused jumper). If the clutch engages when directly powered, fault is upstream (wiring, relay, or ECU).
- After repairs, clear codes, re-test A/C operation and monitor for recurrence. If intermittent or ECU suspected, consult Alfa Romeo technical service info before ECU replacement.
Likely causes
- Open or intermittent circuit in the compressor-clutch control circuit
- Corroded connector at the A/C pressure switch or clutch connector causing intermittent loss of signal
- Failed A/C pressure sensor that is not reporting pressure or is open
- Blown fuse or stuck/failed A/C relay preventing control voltage to the clutch
- Communication fault on vehicle data bus preventing the A/C request from reaching the ECU
Fault status
Status
A/C control interrupted — A/C request or feedback signal disconnected/interrupted. Compressor may be disabled until circuit or communication fault is repaired.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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Code
P1110
MAZDA
P — Powertrain
Intake Air Temperature Sensor Signal Dynamic Chamber Circuit
AI status
Completed
Completed
100%
Causes
- Broken, chafed, or disconnected wiring harness between ECU, A/C pressure switch/sensor, or compressor clutch
- Corroded or poorly seated connector at A/C pressure sensor/switch, compressor clutch, HVAC control module, or ECU
- Faulty A/C pressure sensor/switch (open circuit or intermittent)
- Failed compressor clutch coil or internal open circuit
- Blown fuse or failed A/C compressor relay
- ECU or HVAC control module fault or lost CAN/communication
Symptoms
- A/C compressor does not engage
- No cold air from vents or reduced cooling
- HVAC may display A/C fault or inoperative message
- Cooling fans may not operate as expected while A/C is requested
- Possible stored related DTCs for pressure sensor, clutch circuit, or communications
What to check
- Read and record all stored and pending DTCs and freeze-frame data with a scan tool; note related codes
- Visually inspect A/C wiring, connectors, and grounds for damage, corrosion, or loose pins
- Check relevant fuses and A/C compressor relay for correct operation
- Verify power and ground at the compressor clutch connector with ignition ON and A/C request active
- Measure resistance of the compressor clutch coil with engine off
- Check continuity between the A/C pressure switch/sensor and the ECU connector
Signal parameters
- Compressor clutch coil resistance (typical): ~2–6 Ω (measure with engine off) — subject to model variation
- Compressor clutch supply voltage when A/C requested: ~11–14 V at connector (or control side switched to ground depending on vehicle)
- Clutch engage current draw when operating: commonly 4–25 A — use clamp meter to verify not excessive
- A/C pressure switch/sensor: continuity or switching expected in normal pressure range; sensor output voltage varies by model (0–5 V analog or switched open/closed)
- Low-pressure cut-out (typical): ~1.5–3 bar (≈22–45 psi) — prevents clutch engagement at very low charge
- High-pressure cut-out (typical): ~18–25 bar (≈260–360 psi) — prevents engagement if pressure too high
Diagnostic algorithm
- Connect a capable scan tool, read all codes, and note any related or communication DTCs. Attempt to command the A/C from the tool and observe replies.
- Perform a visual inspection of A/C harnesses, connectors, and grounding points (compressor, pressure switch, ECU, HVAC control). Repair obvious damage.
- Check fuses and relay for the A/C compressor circuit. Replace or swap with identical known-good relay for test if uncertain.
- With ignition ON and A/C requested, back-probe the compressor clutch connector: verify presence of battery voltage or switched ground depending on vehicle wiring. If no command signal, trace upstream to relay/ECU.
- With engine off, measure clutch coil resistance. If open or out-of-spec, replace clutch/assembly.
- Test the A/C pressure switch/sensor: check continuity/switching or measure sensor voltage while monitoring system pressure with a manifold gauge. Replace if open or out-of-range.
- If wiring and components test good, check continuity from component connectors to the ECU connector and verify ECU grounds. Repair any open or high-resistance circuits.
- If communication-related codes exist, verify CAN bus integrity and module addressing; repair as needed or consult wiring diagrams for module-specific tests.
- As a controlled test only, and with proper fusing and safety precautions, apply 12 V to clutch coil to verify clutch operation (use a fused jumper). If the clutch engages when directly powered, fault is upstream (wiring, relay, or ECU).
- After repairs, clear codes, re-test A/C operation and monitor for recurrence. If intermittent or ECU suspected, consult Alfa Romeo technical service info before ECU replacement.
Likely causes
- Open or intermittent circuit in the compressor-clutch control circuit
- Corroded connector at the A/C pressure switch or clutch connector causing intermittent loss of signal
- Failed A/C pressure sensor that is not reporting pressure or is open
- Blown fuse or stuck/failed A/C relay preventing control voltage to the clutch
- Communication fault on vehicle data bus preventing the A/C request from reaching the ECU
Fault status
Status
A/C control interrupted — A/C request or feedback signal disconnected/interrupted. Compressor may be disabled until circuit or communication fault is repaired.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
Similar codes
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Code
P1110
NISSAN
P — Powertrain
Intake Valve Timing Control Solenoid
AI status
Completed
Completed
100%
Causes
- Broken, chafed, or disconnected wiring harness between ECU, A/C pressure switch/sensor, or compressor clutch
- Corroded or poorly seated connector at A/C pressure sensor/switch, compressor clutch, HVAC control module, or ECU
- Faulty A/C pressure sensor/switch (open circuit or intermittent)
- Failed compressor clutch coil or internal open circuit
- Blown fuse or failed A/C compressor relay
- ECU or HVAC control module fault or lost CAN/communication
Symptoms
- A/C compressor does not engage
- No cold air from vents or reduced cooling
- HVAC may display A/C fault or inoperative message
- Cooling fans may not operate as expected while A/C is requested
- Possible stored related DTCs for pressure sensor, clutch circuit, or communications
What to check
- Read and record all stored and pending DTCs and freeze-frame data with a scan tool; note related codes
- Visually inspect A/C wiring, connectors, and grounds for damage, corrosion, or loose pins
- Check relevant fuses and A/C compressor relay for correct operation
- Verify power and ground at the compressor clutch connector with ignition ON and A/C request active
- Measure resistance of the compressor clutch coil with engine off
- Check continuity between the A/C pressure switch/sensor and the ECU connector
Signal parameters
- Compressor clutch coil resistance (typical): ~2–6 Ω (measure with engine off) — subject to model variation
- Compressor clutch supply voltage when A/C requested: ~11–14 V at connector (or control side switched to ground depending on vehicle)
- Clutch engage current draw when operating: commonly 4–25 A — use clamp meter to verify not excessive
- A/C pressure switch/sensor: continuity or switching expected in normal pressure range; sensor output voltage varies by model (0–5 V analog or switched open/closed)
- Low-pressure cut-out (typical): ~1.5–3 bar (≈22–45 psi) — prevents clutch engagement at very low charge
- High-pressure cut-out (typical): ~18–25 bar (≈260–360 psi) — prevents engagement if pressure too high
Diagnostic algorithm
- Connect a capable scan tool, read all codes, and note any related or communication DTCs. Attempt to command the A/C from the tool and observe replies.
- Perform a visual inspection of A/C harnesses, connectors, and grounding points (compressor, pressure switch, ECU, HVAC control). Repair obvious damage.
- Check fuses and relay for the A/C compressor circuit. Replace or swap with identical known-good relay for test if uncertain.
- With ignition ON and A/C requested, back-probe the compressor clutch connector: verify presence of battery voltage or switched ground depending on vehicle wiring. If no command signal, trace upstream to relay/ECU.
- With engine off, measure clutch coil resistance. If open or out-of-spec, replace clutch/assembly.
- Test the A/C pressure switch/sensor: check continuity/switching or measure sensor voltage while monitoring system pressure with a manifold gauge. Replace if open or out-of-range.
- If wiring and components test good, check continuity from component connectors to the ECU connector and verify ECU grounds. Repair any open or high-resistance circuits.
- If communication-related codes exist, verify CAN bus integrity and module addressing; repair as needed or consult wiring diagrams for module-specific tests.
- As a controlled test only, and with proper fusing and safety precautions, apply 12 V to clutch coil to verify clutch operation (use a fused jumper). If the clutch engages when directly powered, fault is upstream (wiring, relay, or ECU).
- After repairs, clear codes, re-test A/C operation and monitor for recurrence. If intermittent or ECU suspected, consult Alfa Romeo technical service info before ECU replacement.
Likely causes
- Open or intermittent circuit in the compressor-clutch control circuit
- Corroded connector at the A/C pressure switch or clutch connector causing intermittent loss of signal
- Failed A/C pressure sensor that is not reporting pressure or is open
- Blown fuse or stuck/failed A/C relay preventing control voltage to the clutch
- Communication fault on vehicle data bus preventing the A/C request from reaching the ECU
Fault status
Status
A/C control interrupted — A/C request or feedback signal disconnected/interrupted. Compressor may be disabled until circuit or communication fault is repaired.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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Code
P1110
Other
P — Powertrain
IAT Sensor (D/C) Open/Short
AI status
Completed
Completed
100%
Causes
- Broken, chafed, or disconnected wiring harness between ECU, A/C pressure switch/sensor, or compressor clutch
- Corroded or poorly seated connector at A/C pressure sensor/switch, compressor clutch, HVAC control module, or ECU
- Faulty A/C pressure sensor/switch (open circuit or intermittent)
- Failed compressor clutch coil or internal open circuit
- Blown fuse or failed A/C compressor relay
- ECU or HVAC control module fault or lost CAN/communication
Symptoms
- A/C compressor does not engage
- No cold air from vents or reduced cooling
- HVAC may display A/C fault or inoperative message
- Cooling fans may not operate as expected while A/C is requested
- Possible stored related DTCs for pressure sensor, clutch circuit, or communications
What to check
- Read and record all stored and pending DTCs and freeze-frame data with a scan tool; note related codes
- Visually inspect A/C wiring, connectors, and grounds for damage, corrosion, or loose pins
- Check relevant fuses and A/C compressor relay for correct operation
- Verify power and ground at the compressor clutch connector with ignition ON and A/C request active
- Measure resistance of the compressor clutch coil with engine off
- Check continuity between the A/C pressure switch/sensor and the ECU connector
Signal parameters
- Compressor clutch coil resistance (typical): ~2–6 Ω (measure with engine off) — subject to model variation
- Compressor clutch supply voltage when A/C requested: ~11–14 V at connector (or control side switched to ground depending on vehicle)
- Clutch engage current draw when operating: commonly 4–25 A — use clamp meter to verify not excessive
- A/C pressure switch/sensor: continuity or switching expected in normal pressure range; sensor output voltage varies by model (0–5 V analog or switched open/closed)
- Low-pressure cut-out (typical): ~1.5–3 bar (≈22–45 psi) — prevents clutch engagement at very low charge
- High-pressure cut-out (typical): ~18–25 bar (≈260–360 psi) — prevents engagement if pressure too high
Diagnostic algorithm
- Connect a capable scan tool, read all codes, and note any related or communication DTCs. Attempt to command the A/C from the tool and observe replies.
- Perform a visual inspection of A/C harnesses, connectors, and grounding points (compressor, pressure switch, ECU, HVAC control). Repair obvious damage.
- Check fuses and relay for the A/C compressor circuit. Replace or swap with identical known-good relay for test if uncertain.
- With ignition ON and A/C requested, back-probe the compressor clutch connector: verify presence of battery voltage or switched ground depending on vehicle wiring. If no command signal, trace upstream to relay/ECU.
- With engine off, measure clutch coil resistance. If open or out-of-spec, replace clutch/assembly.
- Test the A/C pressure switch/sensor: check continuity/switching or measure sensor voltage while monitoring system pressure with a manifold gauge. Replace if open or out-of-range.
- If wiring and components test good, check continuity from component connectors to the ECU connector and verify ECU grounds. Repair any open or high-resistance circuits.
- If communication-related codes exist, verify CAN bus integrity and module addressing; repair as needed or consult wiring diagrams for module-specific tests.
- As a controlled test only, and with proper fusing and safety precautions, apply 12 V to clutch coil to verify clutch operation (use a fused jumper). If the clutch engages when directly powered, fault is upstream (wiring, relay, or ECU).
- After repairs, clear codes, re-test A/C operation and monitor for recurrence. If intermittent or ECU suspected, consult Alfa Romeo technical service info before ECU replacement.
Likely causes
- Open or intermittent circuit in the compressor-clutch control circuit
- Corroded connector at the A/C pressure switch or clutch connector causing intermittent loss of signal
- Failed A/C pressure sensor that is not reporting pressure or is open
- Blown fuse or stuck/failed A/C relay preventing control voltage to the clutch
- Communication fault on vehicle data bus preventing the A/C request from reaching the ECU
Fault status
Status
A/C control interrupted — A/C request or feedback signal disconnected/interrupted. Compressor may be disabled until circuit or communication fault is repaired.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
Similar codes
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Code
P1110
PEUGEOT
P — Powertrain
A/C control malfunction
AI status
Completed
Completed
100%
Causes
- Broken, chafed, or disconnected wiring harness between ECU, A/C pressure switch/sensor, or compressor clutch
- Corroded or poorly seated connector at A/C pressure sensor/switch, compressor clutch, HVAC control module, or ECU
- Faulty A/C pressure sensor/switch (open circuit or intermittent)
- Failed compressor clutch coil or internal open circuit
- Blown fuse or failed A/C compressor relay
- ECU or HVAC control module fault or lost CAN/communication
Symptoms
- A/C compressor does not engage
- No cold air from vents or reduced cooling
- HVAC may display A/C fault or inoperative message
- Cooling fans may not operate as expected while A/C is requested
- Possible stored related DTCs for pressure sensor, clutch circuit, or communications
What to check
- Read and record all stored and pending DTCs and freeze-frame data with a scan tool; note related codes
- Visually inspect A/C wiring, connectors, and grounds for damage, corrosion, or loose pins
- Check relevant fuses and A/C compressor relay for correct operation
- Verify power and ground at the compressor clutch connector with ignition ON and A/C request active
- Measure resistance of the compressor clutch coil with engine off
- Check continuity between the A/C pressure switch/sensor and the ECU connector
Signal parameters
- Compressor clutch coil resistance (typical): ~2–6 Ω (measure with engine off) — subject to model variation
- Compressor clutch supply voltage when A/C requested: ~11–14 V at connector (or control side switched to ground depending on vehicle)
- Clutch engage current draw when operating: commonly 4–25 A — use clamp meter to verify not excessive
- A/C pressure switch/sensor: continuity or switching expected in normal pressure range; sensor output voltage varies by model (0–5 V analog or switched open/closed)
- Low-pressure cut-out (typical): ~1.5–3 bar (≈22–45 psi) — prevents clutch engagement at very low charge
- High-pressure cut-out (typical): ~18–25 bar (≈260–360 psi) — prevents engagement if pressure too high
Diagnostic algorithm
- Connect a capable scan tool, read all codes, and note any related or communication DTCs. Attempt to command the A/C from the tool and observe replies.
- Perform a visual inspection of A/C harnesses, connectors, and grounding points (compressor, pressure switch, ECU, HVAC control). Repair obvious damage.
- Check fuses and relay for the A/C compressor circuit. Replace or swap with identical known-good relay for test if uncertain.
- With ignition ON and A/C requested, back-probe the compressor clutch connector: verify presence of battery voltage or switched ground depending on vehicle wiring. If no command signal, trace upstream to relay/ECU.
- With engine off, measure clutch coil resistance. If open or out-of-spec, replace clutch/assembly.
- Test the A/C pressure switch/sensor: check continuity/switching or measure sensor voltage while monitoring system pressure with a manifold gauge. Replace if open or out-of-range.
- If wiring and components test good, check continuity from component connectors to the ECU connector and verify ECU grounds. Repair any open or high-resistance circuits.
- If communication-related codes exist, verify CAN bus integrity and module addressing; repair as needed or consult wiring diagrams for module-specific tests.
- As a controlled test only, and with proper fusing and safety precautions, apply 12 V to clutch coil to verify clutch operation (use a fused jumper). If the clutch engages when directly powered, fault is upstream (wiring, relay, or ECU).
- After repairs, clear codes, re-test A/C operation and monitor for recurrence. If intermittent or ECU suspected, consult Alfa Romeo technical service info before ECU replacement.
Likely causes
- Open or intermittent circuit in the compressor-clutch control circuit
- Corroded connector at the A/C pressure switch or clutch connector causing intermittent loss of signal
- Failed A/C pressure sensor that is not reporting pressure or is open
- Blown fuse or stuck/failed A/C relay preventing control voltage to the clutch
- Communication fault on vehicle data bus preventing the A/C request from reaching the ECU
Fault status
Status
A/C control interrupted — A/C request or feedback signal disconnected/interrupted. Compressor may be disabled until circuit or communication fault is repaired.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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Code
P1110
PORSCHE
P — Powertrain
Heating of HO2S 2 behind TWC
AI status
Completed
Completed
100%
Causes
- Broken, chafed, or disconnected wiring harness between ECU, A/C pressure switch/sensor, or compressor clutch
- Corroded or poorly seated connector at A/C pressure sensor/switch, compressor clutch, HVAC control module, or ECU
- Faulty A/C pressure sensor/switch (open circuit or intermittent)
- Failed compressor clutch coil or internal open circuit
- Blown fuse or failed A/C compressor relay
- ECU or HVAC control module fault or lost CAN/communication
Symptoms
- A/C compressor does not engage
- No cold air from vents or reduced cooling
- HVAC may display A/C fault or inoperative message
- Cooling fans may not operate as expected while A/C is requested
- Possible stored related DTCs for pressure sensor, clutch circuit, or communications
What to check
- Read and record all stored and pending DTCs and freeze-frame data with a scan tool; note related codes
- Visually inspect A/C wiring, connectors, and grounds for damage, corrosion, or loose pins
- Check relevant fuses and A/C compressor relay for correct operation
- Verify power and ground at the compressor clutch connector with ignition ON and A/C request active
- Measure resistance of the compressor clutch coil with engine off
- Check continuity between the A/C pressure switch/sensor and the ECU connector
Signal parameters
- Compressor clutch coil resistance (typical): ~2–6 Ω (measure with engine off) — subject to model variation
- Compressor clutch supply voltage when A/C requested: ~11–14 V at connector (or control side switched to ground depending on vehicle)
- Clutch engage current draw when operating: commonly 4–25 A — use clamp meter to verify not excessive
- A/C pressure switch/sensor: continuity or switching expected in normal pressure range; sensor output voltage varies by model (0–5 V analog or switched open/closed)
- Low-pressure cut-out (typical): ~1.5–3 bar (≈22–45 psi) — prevents clutch engagement at very low charge
- High-pressure cut-out (typical): ~18–25 bar (≈260–360 psi) — prevents engagement if pressure too high
Diagnostic algorithm
- Connect a capable scan tool, read all codes, and note any related or communication DTCs. Attempt to command the A/C from the tool and observe replies.
- Perform a visual inspection of A/C harnesses, connectors, and grounding points (compressor, pressure switch, ECU, HVAC control). Repair obvious damage.
- Check fuses and relay for the A/C compressor circuit. Replace or swap with identical known-good relay for test if uncertain.
- With ignition ON and A/C requested, back-probe the compressor clutch connector: verify presence of battery voltage or switched ground depending on vehicle wiring. If no command signal, trace upstream to relay/ECU.
- With engine off, measure clutch coil resistance. If open or out-of-spec, replace clutch/assembly.
- Test the A/C pressure switch/sensor: check continuity/switching or measure sensor voltage while monitoring system pressure with a manifold gauge. Replace if open or out-of-range.
- If wiring and components test good, check continuity from component connectors to the ECU connector and verify ECU grounds. Repair any open or high-resistance circuits.
- If communication-related codes exist, verify CAN bus integrity and module addressing; repair as needed or consult wiring diagrams for module-specific tests.
- As a controlled test only, and with proper fusing and safety precautions, apply 12 V to clutch coil to verify clutch operation (use a fused jumper). If the clutch engages when directly powered, fault is upstream (wiring, relay, or ECU).
- After repairs, clear codes, re-test A/C operation and monitor for recurrence. If intermittent or ECU suspected, consult Alfa Romeo technical service info before ECU replacement.
Likely causes
- Open or intermittent circuit in the compressor-clutch control circuit
- Corroded connector at the A/C pressure switch or clutch connector causing intermittent loss of signal
- Failed A/C pressure sensor that is not reporting pressure or is open
- Blown fuse or stuck/failed A/C relay preventing control voltage to the clutch
- Communication fault on vehicle data bus preventing the A/C request from reaching the ECU
Fault status
Status
A/C control interrupted — A/C request or feedback signal disconnected/interrupted. Compressor may be disabled until circuit or communication fault is repaired.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
Similar codes
Repair manuals
Manual library for PORSCHE
136
Browse 136 PORSCHE manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.
PORSCHE
-
PORSCHE: 2021
-
718 Spyder
-
911
- Carrera, 2D Convertible
- Carrera, 2D Coupe
- Carrera 4, 2D Convertible
- Carrera 4, 2D Coupe
- Carrera 4S, 2D Convertible, Automatic DCT Trans
- Carrera 4S, 2D Convertible, Standard Trans
- Carrera 4S, 2D Coupe, Automatic DCT Trans
- Carrera 4S, 2D Coupe, Standard Trans
- Carrera S, 2D Convertible, Automatic DCT Trans
- Carrera S, 2D Convertible, Standard Trans
- Carrera S, 2D Coupe, Automatic DCT Trans
- Carrera S, 2D Coupe, Standard Trans
- Targa 4
- Targa 4S, Automatic DCT Trans
- Targa 4S, Standard Trans
- Targa 4S Heritage Design Ed., Automatic DCT Trans
- Targa 4S Heritage Design Ed., Standard Trans
- Turbo, 2D Convertible
- Turbo, 2D Coupe
- Turbo S, 2D Convertible
- Turbo S, 2D Coupe
-
Cayenne
- Base, 4D Utility Coupe
- Base, 4D Utility Wagon
- E-Hybrid, 4D Utility Coupe
- E-Hybrid, 4D Utility Wagon
- GTS, 4D Utility Coupe
- GTS, 4D Utility Wagon
- S, 4D Utility Coupe
- S, 4D Utility Wagon
- Turbo, 4D Utility Coupe
- Turbo, 4D Utility Wagon
- Turbo S E-Hybrid, 4D Utility Coupe
- Turbo S E-Hybrid, 4D Utility Wagon
-
Macan
-
PORSCHE: 2020
-
718 Spyder
-
Macan
-
Panamera
- 4
- 4 E-Hybrid
- 4 E-Hybrid Executive
- 4 E-Hybrid Sport Turismo
- 4 Executive
- 4 Sport Turismo
- 4S
- 4S Executive
- 4S Executive
- 4S Executive
- 4S Sport Turismo
- 2020 Panamera Base
- GTS
- GTS Sport Turismo
- Turbo
- Turbo Executive
- Turbo S E-Hybrid
- Turbo S E-Hybrid Executive
- Turbo S E-Hybrid Sport Turismo
- Turbo Sport Turismo
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Code
P1110
RAM
P — Powertrain
Decreased Engine Performance Due To High Intake Air Temperature
AI status
Completed
Completed
100%
Causes
- Broken, chafed, or disconnected wiring harness between ECU, A/C pressure switch/sensor, or compressor clutch
- Corroded or poorly seated connector at A/C pressure sensor/switch, compressor clutch, HVAC control module, or ECU
- Faulty A/C pressure sensor/switch (open circuit or intermittent)
- Failed compressor clutch coil or internal open circuit
- Blown fuse or failed A/C compressor relay
- ECU or HVAC control module fault or lost CAN/communication
Symptoms
- A/C compressor does not engage
- No cold air from vents or reduced cooling
- HVAC may display A/C fault or inoperative message
- Cooling fans may not operate as expected while A/C is requested
- Possible stored related DTCs for pressure sensor, clutch circuit, or communications
What to check
- Read and record all stored and pending DTCs and freeze-frame data with a scan tool; note related codes
- Visually inspect A/C wiring, connectors, and grounds for damage, corrosion, or loose pins
- Check relevant fuses and A/C compressor relay for correct operation
- Verify power and ground at the compressor clutch connector with ignition ON and A/C request active
- Measure resistance of the compressor clutch coil with engine off
- Check continuity between the A/C pressure switch/sensor and the ECU connector
Signal parameters
- Compressor clutch coil resistance (typical): ~2–6 Ω (measure with engine off) — subject to model variation
- Compressor clutch supply voltage when A/C requested: ~11–14 V at connector (or control side switched to ground depending on vehicle)
- Clutch engage current draw when operating: commonly 4–25 A — use clamp meter to verify not excessive
- A/C pressure switch/sensor: continuity or switching expected in normal pressure range; sensor output voltage varies by model (0–5 V analog or switched open/closed)
- Low-pressure cut-out (typical): ~1.5–3 bar (≈22–45 psi) — prevents clutch engagement at very low charge
- High-pressure cut-out (typical): ~18–25 bar (≈260–360 psi) — prevents engagement if pressure too high
Diagnostic algorithm
- Connect a capable scan tool, read all codes, and note any related or communication DTCs. Attempt to command the A/C from the tool and observe replies.
- Perform a visual inspection of A/C harnesses, connectors, and grounding points (compressor, pressure switch, ECU, HVAC control). Repair obvious damage.
- Check fuses and relay for the A/C compressor circuit. Replace or swap with identical known-good relay for test if uncertain.
- With ignition ON and A/C requested, back-probe the compressor clutch connector: verify presence of battery voltage or switched ground depending on vehicle wiring. If no command signal, trace upstream to relay/ECU.
- With engine off, measure clutch coil resistance. If open or out-of-spec, replace clutch/assembly.
- Test the A/C pressure switch/sensor: check continuity/switching or measure sensor voltage while monitoring system pressure with a manifold gauge. Replace if open or out-of-range.
- If wiring and components test good, check continuity from component connectors to the ECU connector and verify ECU grounds. Repair any open or high-resistance circuits.
- If communication-related codes exist, verify CAN bus integrity and module addressing; repair as needed or consult wiring diagrams for module-specific tests.
- As a controlled test only, and with proper fusing and safety precautions, apply 12 V to clutch coil to verify clutch operation (use a fused jumper). If the clutch engages when directly powered, fault is upstream (wiring, relay, or ECU).
- After repairs, clear codes, re-test A/C operation and monitor for recurrence. If intermittent or ECU suspected, consult Alfa Romeo technical service info before ECU replacement.
Likely causes
- Open or intermittent circuit in the compressor-clutch control circuit
- Corroded connector at the A/C pressure switch or clutch connector causing intermittent loss of signal
- Failed A/C pressure sensor that is not reporting pressure or is open
- Blown fuse or stuck/failed A/C relay preventing control voltage to the clutch
- Communication fault on vehicle data bus preventing the A/C request from reaching the ECU
Fault status
Status
A/C control interrupted — A/C request or feedback signal disconnected/interrupted. Compressor may be disabled until circuit or communication fault is repaired.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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Code
P1110
SAAB
P — Powertrain
Charge Air Bypass Valve. Performance Problems
AI status
Completed
Completed
100%
Causes
- Broken, chafed, or disconnected wiring harness between ECU, A/C pressure switch/sensor, or compressor clutch
- Corroded or poorly seated connector at A/C pressure sensor/switch, compressor clutch, HVAC control module, or ECU
- Faulty A/C pressure sensor/switch (open circuit or intermittent)
- Failed compressor clutch coil or internal open circuit
- Blown fuse or failed A/C compressor relay
- ECU or HVAC control module fault or lost CAN/communication
Symptoms
- A/C compressor does not engage
- No cold air from vents or reduced cooling
- HVAC may display A/C fault or inoperative message
- Cooling fans may not operate as expected while A/C is requested
- Possible stored related DTCs for pressure sensor, clutch circuit, or communications
What to check
- Read and record all stored and pending DTCs and freeze-frame data with a scan tool; note related codes
- Visually inspect A/C wiring, connectors, and grounds for damage, corrosion, or loose pins
- Check relevant fuses and A/C compressor relay for correct operation
- Verify power and ground at the compressor clutch connector with ignition ON and A/C request active
- Measure resistance of the compressor clutch coil with engine off
- Check continuity between the A/C pressure switch/sensor and the ECU connector
Signal parameters
- Compressor clutch coil resistance (typical): ~2–6 Ω (measure with engine off) — subject to model variation
- Compressor clutch supply voltage when A/C requested: ~11–14 V at connector (or control side switched to ground depending on vehicle)
- Clutch engage current draw when operating: commonly 4–25 A — use clamp meter to verify not excessive
- A/C pressure switch/sensor: continuity or switching expected in normal pressure range; sensor output voltage varies by model (0–5 V analog or switched open/closed)
- Low-pressure cut-out (typical): ~1.5–3 bar (≈22–45 psi) — prevents clutch engagement at very low charge
- High-pressure cut-out (typical): ~18–25 bar (≈260–360 psi) — prevents engagement if pressure too high
Diagnostic algorithm
- Connect a capable scan tool, read all codes, and note any related or communication DTCs. Attempt to command the A/C from the tool and observe replies.
- Perform a visual inspection of A/C harnesses, connectors, and grounding points (compressor, pressure switch, ECU, HVAC control). Repair obvious damage.
- Check fuses and relay for the A/C compressor circuit. Replace or swap with identical known-good relay for test if uncertain.
- With ignition ON and A/C requested, back-probe the compressor clutch connector: verify presence of battery voltage or switched ground depending on vehicle wiring. If no command signal, trace upstream to relay/ECU.
- With engine off, measure clutch coil resistance. If open or out-of-spec, replace clutch/assembly.
- Test the A/C pressure switch/sensor: check continuity/switching or measure sensor voltage while monitoring system pressure with a manifold gauge. Replace if open or out-of-range.
- If wiring and components test good, check continuity from component connectors to the ECU connector and verify ECU grounds. Repair any open or high-resistance circuits.
- If communication-related codes exist, verify CAN bus integrity and module addressing; repair as needed or consult wiring diagrams for module-specific tests.
- As a controlled test only, and with proper fusing and safety precautions, apply 12 V to clutch coil to verify clutch operation (use a fused jumper). If the clutch engages when directly powered, fault is upstream (wiring, relay, or ECU).
- After repairs, clear codes, re-test A/C operation and monitor for recurrence. If intermittent or ECU suspected, consult Alfa Romeo technical service info before ECU replacement.
Likely causes
- Open or intermittent circuit in the compressor-clutch control circuit
- Corroded connector at the A/C pressure switch or clutch connector causing intermittent loss of signal
- Failed A/C pressure sensor that is not reporting pressure or is open
- Blown fuse or stuck/failed A/C relay preventing control voltage to the clutch
- Communication fault on vehicle data bus preventing the A/C request from reaching the ECU
Fault status
Status
A/C control interrupted — A/C request or feedback signal disconnected/interrupted. Compressor may be disabled until circuit or communication fault is repaired.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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Code
P1110
SUBARU
P — Powertrain
Atmospheric Pressure Sensor Low Input
AI status
Completed
Completed
100%
Causes
- Broken, chafed, or disconnected wiring harness between ECU, A/C pressure switch/sensor, or compressor clutch
- Corroded or poorly seated connector at A/C pressure sensor/switch, compressor clutch, HVAC control module, or ECU
- Faulty A/C pressure sensor/switch (open circuit or intermittent)
- Failed compressor clutch coil or internal open circuit
- Blown fuse or failed A/C compressor relay
- ECU or HVAC control module fault or lost CAN/communication
Symptoms
- A/C compressor does not engage
- No cold air from vents or reduced cooling
- HVAC may display A/C fault or inoperative message
- Cooling fans may not operate as expected while A/C is requested
- Possible stored related DTCs for pressure sensor, clutch circuit, or communications
What to check
- Read and record all stored and pending DTCs and freeze-frame data with a scan tool; note related codes
- Visually inspect A/C wiring, connectors, and grounds for damage, corrosion, or loose pins
- Check relevant fuses and A/C compressor relay for correct operation
- Verify power and ground at the compressor clutch connector with ignition ON and A/C request active
- Measure resistance of the compressor clutch coil with engine off
- Check continuity between the A/C pressure switch/sensor and the ECU connector
Signal parameters
- Compressor clutch coil resistance (typical): ~2–6 Ω (measure with engine off) — subject to model variation
- Compressor clutch supply voltage when A/C requested: ~11–14 V at connector (or control side switched to ground depending on vehicle)
- Clutch engage current draw when operating: commonly 4–25 A — use clamp meter to verify not excessive
- A/C pressure switch/sensor: continuity or switching expected in normal pressure range; sensor output voltage varies by model (0–5 V analog or switched open/closed)
- Low-pressure cut-out (typical): ~1.5–3 bar (≈22–45 psi) — prevents clutch engagement at very low charge
- High-pressure cut-out (typical): ~18–25 bar (≈260–360 psi) — prevents engagement if pressure too high
Diagnostic algorithm
- Connect a capable scan tool, read all codes, and note any related or communication DTCs. Attempt to command the A/C from the tool and observe replies.
- Perform a visual inspection of A/C harnesses, connectors, and grounding points (compressor, pressure switch, ECU, HVAC control). Repair obvious damage.
- Check fuses and relay for the A/C compressor circuit. Replace or swap with identical known-good relay for test if uncertain.
- With ignition ON and A/C requested, back-probe the compressor clutch connector: verify presence of battery voltage or switched ground depending on vehicle wiring. If no command signal, trace upstream to relay/ECU.
- With engine off, measure clutch coil resistance. If open or out-of-spec, replace clutch/assembly.
- Test the A/C pressure switch/sensor: check continuity/switching or measure sensor voltage while monitoring system pressure with a manifold gauge. Replace if open or out-of-range.
- If wiring and components test good, check continuity from component connectors to the ECU connector and verify ECU grounds. Repair any open or high-resistance circuits.
- If communication-related codes exist, verify CAN bus integrity and module addressing; repair as needed or consult wiring diagrams for module-specific tests.
- As a controlled test only, and with proper fusing and safety precautions, apply 12 V to clutch coil to verify clutch operation (use a fused jumper). If the clutch engages when directly powered, fault is upstream (wiring, relay, or ECU).
- After repairs, clear codes, re-test A/C operation and monitor for recurrence. If intermittent or ECU suspected, consult Alfa Romeo technical service info before ECU replacement.
Likely causes
- Open or intermittent circuit in the compressor-clutch control circuit
- Corroded connector at the A/C pressure switch or clutch connector causing intermittent loss of signal
- Failed A/C pressure sensor that is not reporting pressure or is open
- Blown fuse or stuck/failed A/C relay preventing control voltage to the clutch
- Communication fault on vehicle data bus preventing the A/C request from reaching the ECU
Fault status
Status
A/C control interrupted — A/C request or feedback signal disconnected/interrupted. Compressor may be disabled until circuit or communication fault is repaired.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
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Code
P1110
VOLKSWAGEN
P — Powertrain
Oxygen Sensor Heating Circuit Bank 2 Sensor 2 Short To B+
AI status
Completed
Completed
100%
Causes
- Broken, chafed, or disconnected wiring harness between ECU, A/C pressure switch/sensor, or compressor clutch
- Corroded or poorly seated connector at A/C pressure sensor/switch, compressor clutch, HVAC control module, or ECU
- Faulty A/C pressure sensor/switch (open circuit or intermittent)
- Failed compressor clutch coil or internal open circuit
- Blown fuse or failed A/C compressor relay
- ECU or HVAC control module fault or lost CAN/communication
Symptoms
- A/C compressor does not engage
- No cold air from vents or reduced cooling
- HVAC may display A/C fault or inoperative message
- Cooling fans may not operate as expected while A/C is requested
- Possible stored related DTCs for pressure sensor, clutch circuit, or communications
What to check
- Read and record all stored and pending DTCs and freeze-frame data with a scan tool; note related codes
- Visually inspect A/C wiring, connectors, and grounds for damage, corrosion, or loose pins
- Check relevant fuses and A/C compressor relay for correct operation
- Verify power and ground at the compressor clutch connector with ignition ON and A/C request active
- Measure resistance of the compressor clutch coil with engine off
- Check continuity between the A/C pressure switch/sensor and the ECU connector
Signal parameters
- Compressor clutch coil resistance (typical): ~2–6 Ω (measure with engine off) — subject to model variation
- Compressor clutch supply voltage when A/C requested: ~11–14 V at connector (or control side switched to ground depending on vehicle)
- Clutch engage current draw when operating: commonly 4–25 A — use clamp meter to verify not excessive
- A/C pressure switch/sensor: continuity or switching expected in normal pressure range; sensor output voltage varies by model (0–5 V analog or switched open/closed)
- Low-pressure cut-out (typical): ~1.5–3 bar (≈22–45 psi) — prevents clutch engagement at very low charge
- High-pressure cut-out (typical): ~18–25 bar (≈260–360 psi) — prevents engagement if pressure too high
Diagnostic algorithm
- Connect a capable scan tool, read all codes, and note any related or communication DTCs. Attempt to command the A/C from the tool and observe replies.
- Perform a visual inspection of A/C harnesses, connectors, and grounding points (compressor, pressure switch, ECU, HVAC control). Repair obvious damage.
- Check fuses and relay for the A/C compressor circuit. Replace or swap with identical known-good relay for test if uncertain.
- With ignition ON and A/C requested, back-probe the compressor clutch connector: verify presence of battery voltage or switched ground depending on vehicle wiring. If no command signal, trace upstream to relay/ECU.
- With engine off, measure clutch coil resistance. If open or out-of-spec, replace clutch/assembly.
- Test the A/C pressure switch/sensor: check continuity/switching or measure sensor voltage while monitoring system pressure with a manifold gauge. Replace if open or out-of-range.
- If wiring and components test good, check continuity from component connectors to the ECU connector and verify ECU grounds. Repair any open or high-resistance circuits.
- If communication-related codes exist, verify CAN bus integrity and module addressing; repair as needed or consult wiring diagrams for module-specific tests.
- As a controlled test only, and with proper fusing and safety precautions, apply 12 V to clutch coil to verify clutch operation (use a fused jumper). If the clutch engages when directly powered, fault is upstream (wiring, relay, or ECU).
- After repairs, clear codes, re-test A/C operation and monitor for recurrence. If intermittent or ECU suspected, consult Alfa Romeo technical service info before ECU replacement.
Likely causes
- Open or intermittent circuit in the compressor-clutch control circuit
- Corroded connector at the A/C pressure switch or clutch connector causing intermittent loss of signal
- Failed A/C pressure sensor that is not reporting pressure or is open
- Blown fuse or stuck/failed A/C relay preventing control voltage to the clutch
- Communication fault on vehicle data bus preventing the A/C request from reaching the ECU
Fault status
Status
A/C control interrupted — A/C request or feedback signal disconnected/interrupted. Compressor may be disabled until circuit or communication fault is repaired.
Repair difficulty: Medium
Diagnostic time: 0.5-2.0 hours
Similar codes
Repair manuals
Manual library for VOLKSWAGEN
626
Browse 626 VOLKSWAGEN manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.
VOLKSWAGEN
-
VOLKSWAGEN: 2022
-
Atlas Cross Sport
- SE, 2.0L Eng VIN C, AWD
- SE, 2.0L Eng VIN C, FWD
- SE, 3.6L Eng VIN E, AWD
- SE, 3.6L Eng VIN E, FWD
- SEL, 2.0L Eng VIN C · 2.0L Eng VIN C2022: Atlas Cross Sport SEL
- SEL, 3.6L Eng VIN E · 3.6L Eng VIN E2022: Atlas Cross Sport SEL
- SEL Premium R-Line
- SEL R-Line, 2.0L Eng VIN C · 2.0L Eng VIN C2022: Atlas Cross Sport SEL R-Line
- SEL R-Line, 3.6L Eng VIN E · 3.6L Eng VIN E2022: Atlas Cross Sport SEL R-Line
-
Golf R
-
Passat
-
VOLKSWAGEN: 2021
-
Atlas
- S, AWD
- S, FWD
- SE, 2.0L Eng VIN P, AWD
- SE, 2.0L Eng VIN P, FWD
- SE, 3.6L Eng VIN R, AWD
- SE, 3.6L Eng VIN R, FWD
- SEL, 2.0L Eng VIN P · 2.0L Eng VIN P2021: Atlas SEL
- SEL, 3.6L Eng VIN R, AWD
- SEL, 3.6L Eng VIN R, FWD
- SEL Premium, 2.0L Eng VIN P · 2.0L Eng VIN P2021: Atlas SEL Premium
- SEL Premium, 3.6L Eng VIN R · 3.6L Eng VIN R2021: Atlas SEL Premium
- SEL Premium R-Line
- SEL R-Line, AWD
- SEL R-Line, FWD
- SE R-Line, AWD
- SE R-Line, FWD
-
Atlas Cross Sport
- S, AWD
- S, FWD
- SE, 2.0L Eng VIN C, AWD
- SE, 2.0L Eng VIN C, FWD
- SE, 3.6L Eng VIN E, AWD
- SE, 3.6L Eng VIN E, FWD
- SEL, 2.0L Eng VIN C · 2.0L Eng VIN C2021: Atlas Cross Sport SEL
- SEL, 3.6L Eng VIN E, AWD
- SEL, 3.6L Eng VIN E, FWD
- SEL Premium, 2.0L Eng VIN C · 2.0L Eng VIN C2021: Atlas Cross Sport SEL Premium
- SEL Premium, 3.6L Eng VIN E · 3.6L Eng VIN E2021: Atlas Cross Sport SEL Premium
- SEL Premium R-Line
- SEL R-Line, AWD
- SEL R-Line, FWD
- SE R-Line, AWD
- SE R-Line, FWD
-
VOLKSWAGEN: 2020
-
Atlas
- S, 2.0L Eng VIN P · 2.0L Eng VIN P2020: Atlas S
- S, 3.6L Eng VIN R · 3.6L Eng VIN R2020: Atlas S
- SE, 2.0L Eng VIN P · 2.0L Eng VIN P2020: Atlas SE
- SE, 3.6L Eng VIN R, AWD
- SE, 3.6L Eng VIN R, FWD
- SEL, 2.0L Eng VIN P · 2.0L Eng VIN P2020: Atlas SEL
- SEL, 3.6L Eng VIN R, AWD
- SEL, 3.6L Eng VIN R, FWD
- SEL Premium
- SEL R-Line, AWD
- SEL R-Line, FWD
- SE R-Line, AWD
- SE R-Line, FWD
-
Atlas Cross Sport
- S, AWD
- S, FWD
- SE, 2.0L Eng VIN C, AWD
- SE, 2.0L Eng VIN C, FWD
- SE, 3.6L Eng VIN E, AWD
- SE, 3.6L Eng VIN E, FWD
- SEL, 2.0L Eng VIN C, AWD
- SEL, 2.0L Eng VIN C, FWD
- SEL, 3.6L Eng VIN E, AWD
- SEL, 3.6L Eng VIN E, FWD
- SEL Premium
- SEL Premium R-Line
- SEL R-Line, AWD
- SEL R-Line, FWD
- SE R-Line, AWD
- SE R-Line, FWD
-
Jetta
- GLI Autobahn, Automatic DCT Trans
- GLI Autobahn, Standard Trans
- GLI S, Automatic DCT Trans
- GLI S, Standard Trans
- R-Line, 1.4L Eng VIN 5, Automatic Trans
- R-Line, 1.4L Eng VIN 5, Standard Trans
- R-Line, 1.4L Eng VIN B · 1.4L Eng VIN B2020: Jetta R-Line
- S, 1.4L Eng VIN 5, Automatic Trans
- S, 1.4L Eng VIN 5, Standard Trans
- S, 1.4L Eng VIN B · 1.4L Eng VIN B2020: Jetta S
- SE, 1.4L Eng VIN 5 · 1.4L Eng VIN 52020: Jetta SE
- SE, 1.4L Eng VIN B · 1.4L Eng VIN B2020: Jetta SE
- SEL, 1.4L Eng VIN 5 · 1.4L Eng VIN 52020: Jetta SEL
- SEL, 1.4L Eng VIN B · 1.4L Eng VIN B2020: Jetta SEL
- SEL Premium, 1.4L Eng VIN 5 · 1.4L Eng VIN 52020: Jetta SEL Premium
- SEL Premium, 1.4L Eng VIN B · 1.4L Eng VIN B2020: Jetta SEL Premium
-
VOLKSWAGEN: 2019
-
e-Golf
-
Golf Alltrack
- S, Eng CD CXBA, Automatic DCT Trans
- S, Eng CD CXBA, Standard Trans
- S, Eng CD CXBB, Automatic DCT Trans
- S, Eng CD CXBB, Standard Trans
- SE, Eng CD CXBA, Automatic DCT Trans
- SE, Eng CD CXBA, Standard Trans
- SE, Eng CD CXBB, Automatic DCT Trans
- SE, Eng CD CXBB, Standard Trans
- SEL, Eng CD CXBA, Automatic DCT Trans
- SEL, Eng CD CXBA, Standard Trans
- SEL, Eng CD CXBB, Automatic DCT Trans
- SEL, Eng CD CXBB, Standard Trans
-
Jetta
- GLI 35th Anniversary Edition, Automatic DCT Trans
- GLI 35th Anniversary Edition, Standard Trans
- GLI Autobahn, Automatic DCT Trans
- GLI Autobahn, Standard Trans
- GLI S, Automatic DCT Trans
- GLI S, Standard Trans
- R-Line, 1.4L Eng VIN 5 · 1.4L Eng VIN 52019: Jetta R-Line
- R-Line, 1.4L Eng VIN B · 1.4L Eng VIN B2019: Jetta R-Line
- S, 1.4L Eng VIN 5, Automatic Trans
- S, 1.4L Eng VIN 5, Standard Trans
- S, 1.4L Eng VIN B · 1.4L Eng VIN B2019: Jetta S
- SE, 1.4L Eng VIN 5 · 1.4L Eng VIN 52019: Jetta SE
- SE, 1.4L Eng VIN B · 1.4L Eng VIN B2019: Jetta SE
- SEL, 1.4L Eng VIN 5 · 1.4L Eng VIN 52019: Jetta SEL
- SEL, 1.4L Eng VIN B · 1.4L Eng VIN B2019: Jetta SEL
- SEL Premium, 1.4L Eng VIN 5 · 1.4L Eng VIN 52019: Jetta SEL Premium
- SEL Premium, 1.4L Eng VIN B · 1.4L Eng VIN B2019: Jetta SEL Premium
-
VOLKSWAGEN: 2018
-
Atlas
- Launch Edition, AWD
- Launch Edition, FWD
- S, 2.0L Eng VIN P · 2.0L Eng VIN P2018: Atlas S
- S, 3.6L Eng VIN R, AWD
- S, 3.6L Eng VIN R, FWD
- SE, 2.0L Eng VIN P · 2.0L Eng VIN P2018: Atlas SE
- SE, 3.6L Eng VIN R, AWD
- SE, 3.6L Eng VIN R, FWD
- SEL, 2.0L Eng VIN P · 2.0L Eng VIN P2018: Atlas SEL
- SEL, 3.6L Eng VIN R, AWD
- SEL, 3.6L Eng VIN R, FWD
- SEL Premium, AWD
- SEL Premium, FWD
-
e-Golf
-
Golf Alltrack
- S, Eng CD CXBA, Automatic DCT Trans
- S, Eng CD CXBA, Standard Trans
- S, Eng CD CXBB, Automatic DCT Trans
- S, Eng CD CXBB, Standard Trans
- SE, Eng CD CXBA, Automatic DCT Trans
- SE, Eng CD CXBA, Standard Trans
- SE, Eng CD CXBB, Automatic DCT Trans
- SE, Eng CD CXBB, Standard Trans
- SEL, Eng CD CXBA
- SEL, Eng CD CXBB
-
Jetta
- GLI, Eng CD CPLA
- GLI, Eng CD CPPA
- S, 1.4L Eng VIN 6, Automatic Trans
- S, 1.4L Eng VIN 6, Standard Trans
- S, 1.4L Eng VIN B, Automatic Trans
- S, 1.4L Eng VIN B, Standard Trans
- SE, 1.4L Eng VIN 6, Automatic Trans
- SE, 1.4L Eng VIN 6, Standard Trans
- SE, 1.4L Eng VIN B, Automatic Trans
- SE, 1.4L Eng VIN B, Standard Trans
- SEL, Eng CD CPKA
- SEL, Eng CD CPRA
- SE Sport, Eng CD CPKA
- SE Sport, Eng CD CPRA
- Wolfsburg Edition, 1.4L Eng VIN 6, Automatic Trans
- Wolfsburg Edition, 1.4L Eng VIN 6, Standard Trans
- Wolfsburg Edition, 1.4L Eng VIN B, Automatic Trans
- Wolfsburg Edition, 1.4L Eng VIN B, Standard Trans
-
-
VOLKSWAGEN: 2017
-
e-Golf
-
Golf
- S, Eng CD CXBA, Automatic Trans
- S, Eng CD CXBA, Standard Trans
- S, Eng CD CXBB, Automatic Trans
- S, Eng CD CXBB, Standard Trans
- Wolfsburg Edition, Eng CD CXBA, Automatic Trans
- Wolfsburg Edition, Eng CD CXBA, Standard Trans
- Wolfsburg Edition, Eng CD CXBB, Automatic Trans
- Wolfsburg Edition, Eng CD CXBB, Standard Trans
-
Golf Alltrack
- S, Eng CD CXBA, Automatic DCT Trans
- S, Eng CD CXBA, Standard Trans
- S, Eng CD CXBB, Automatic DCT Trans
- S, Eng CD CXBB, Standard Trans
- SE, Eng CD CXBA, Automatic DCT Trans
- SE, Eng CD CXBA, Standard Trans
- SE, Eng CD CXBB, Automatic DCT Trans
- SE, Eng CD CXBB, Standard Trans
- SEL, Eng CD CXBA
- SEL, Eng CD CXBB
-
Golf SportWagen
- S, Eng CD CXBA, AWD, Automatic DCT Trans
- S, Eng CD CXBA, AWD, Standard Trans
- S, Eng CD CXBA, FWD, Automatic Trans
- S, Eng CD CXBA, FWD, Standard Trans
- S, Eng CD CXBB, AWD, Automatic DCT Trans
- S, Eng CD CXBB, AWD, Standard Trans
- S, Eng CD CXBB, FWD, Automatic Trans
- S, Eng CD CXBB, FWD, Standard Trans
- SE, Eng CD CXBA
- SE, Eng CD CXBB
- SEL, Eng CD CXBA
- SEL, Eng CD CXBB
-
Jetta
- GLI, Automatic DCT Trans
- GLI, Standard Trans
- S, 1.4L Eng VIN 6, Automatic Trans
- S, 1.4L Eng VIN 6, Standard Trans
- S, 1.4L Eng VIN B, Automatic Trans
- S, 1.4L Eng VIN B, Standard Trans
- SE, 1.4L Eng VIN 6, Automatic Trans
- SE, 1.4L Eng VIN 6, Standard Trans
- SE, 1.4L Eng VIN B, Automatic Trans
- SE, 1.4L Eng VIN B, Standard Trans
- SEL
- Sport
-
Touareg
-
VOLKSWAGEN: 2016
-
Beetle
- Denim, 1.8L Eng VIN 0 · 1.8L Eng VIN 02016: Beetle Denim
- Denim, 1.8L Eng VIN 1 · 1.8L Eng VIN 12016: Beetle Denim
- Dune, 1.8L Eng VIN 0 · 1.8L Eng VIN 02016: Beetle Dune
- Dune, 1.8L Eng VIN 1 · 1.8L Eng VIN 12016: Beetle Dune
- Fleet Edition
- R-Line S, 2.0L Eng VIN S, Automatic DCT Trans
- R-Line S, 2.0L Eng VIN S, Standard Trans
- R-Line S, 2.0L Eng VIN T, Automatic DCT Trans
- R-Line S, 2.0L Eng VIN T, Standard Trans
- R-Line SE, 2D Convertible, 2.0L Eng VIN S, Automatic DCT Trans
- R-Line SE, 2D Convertible, 2.0L Eng VIN S, Standard Trans
- R-Line SE, 2D Convertible, 2.0L Eng VIN T, Automatic DCT Trans
- R-Line SE, 2D Convertible, 2.0L Eng VIN T, Standard Trans
- R-Line SE, 2D Hatchback, 2.0L Eng VIN S, Automatic DCT Trans
- R-Line SE, 2D Hatchback, 2.0L Eng VIN S, Standard Trans
- R-Line SE, 2D Hatchback, 2.0L Eng VIN T, Automatic DCT Trans
- R-Line SE, 2D Hatchback, 2.0L Eng VIN T, Standard Trans
- R-Line SEL, 2D Convertible, 2.0L Eng VIN S, Automatic DCT Trans
- R-Line SEL, 2D Convertible, 2.0L Eng VIN S, Standard Trans
- R-Line SEL, 2D Convertible, 2.0L Eng VIN T, Automatic DCT Trans
- R-Line SEL, 2D Convertible, 2.0L Eng VIN T, Standard Trans
- R-Line SEL, 2D Hatchback, 2.0L Eng VIN S, Automatic DCT Trans
- R-Line SEL, 2D Hatchback, 2.0L Eng VIN S, Standard Trans
- R-Line SEL, 2D Hatchback, 2.0L Eng VIN T, Automatic DCT Trans
- R-Line SEL, 2D Hatchback, 2.0L Eng VIN T, Standard Trans
- S, 2D Convertible, 1.8L Eng VIN 0 · 1.8L Eng VIN 02016: Beetle S
- S, 2D Convertible, 1.8L Eng VIN 1 · 1.8L Eng VIN 12016: Beetle S
- S, 2D Hatchback, 1.8L Eng VIN 0 · 1.8L Eng VIN 02016: Beetle S
- S, 2D Hatchback, 1.8L Eng VIN 1 · 1.8L Eng VIN 12016: Beetle S
- SE, 2D Convertible, 1.8L Eng VIN 0 · 1.8L Eng VIN 02016: Beetle SE
- SE, 2D Convertible, 1.8L Eng VIN 1 · 1.8L Eng VIN 12016: Beetle SE
- SE, 2D Hatchback, 1.8L Eng VIN 0, Automatic Trans
- SE, 2D Hatchback, 1.8L Eng VIN 0, Standard Trans
- SE, 2D Hatchback, 1.8L Eng VIN 1, Automatic Trans
- SE, 2D Hatchback, 1.8L Eng VIN 1, Standard Trans
- SEL, 2D Convertible, 1.8L Eng VIN 0 · 1.8L Eng VIN 02016: Beetle SEL
- SEL, 2D Convertible, 1.8L Eng VIN 1 · 1.8L Eng VIN 12016: Beetle SEL
- SEL, 2D Hatchback, 1.8L Eng VIN 0 · 1.8L Eng VIN 02016: Beetle SEL
- SEL, 2D Hatchback, 1.8L Eng VIN 1 · 1.8L Eng VIN 12016: Beetle SEL
- Wolfsburg Edition, 1.8L Eng VIN 0 · 1.8L Eng VIN 02016: Beetle Wolfsburg Edition
- Wolfsburg Edition, 1.8L Eng VIN 1 · 1.8L Eng VIN 12016: Beetle Wolfsburg Edition
-
CC
- R-Line, 2.0L Eng VIN N, Automatic DCT Trans
- R-Line, 2.0L Eng VIN N, Standard Trans
- R-Line, 2.0L Eng VIN P, Automatic DCT Trans
- R-Line, 2.0L Eng VIN P, Standard Trans
- R-Line Executive, 2.0L Eng VIN N · 2.0L Eng VIN N2016: CC R-Line Executive
- R-Line Executive, 2.0L Eng VIN P · 2.0L Eng VIN P2016: CC R-Line Executive
- Sport, 2.0L Eng VIN N · 2.0L Eng VIN N2016: CC Sport
- Sport, 2.0L Eng VIN P · 2.0L Eng VIN P2016: CC Sport
- Trend, 2.0L Eng VIN N, Automatic DCT Trans
- Trend, 2.0L Eng VIN N, Standard Trans
- Trend, 2.0L Eng VIN P, Automatic DCT Trans
- Trend, 2.0L Eng VIN P, Standard Trans
- V6 Executive 4Motion
-
e-Golf
-
Golf
- Base, Eng CD CXBA, Automatic Trans
- Base, Eng CD CXBA, Standard Trans
- Base, Eng CD CXBB, Automatic Trans
- Base, Eng CD CXBB, Standard Trans
- S, 2D Hatchback, Eng CD CXBA, Automatic Trans
- S, 2D Hatchback, Eng CD CXBA, Standard Trans
- S, 2D Hatchback, Eng CD CXBB, Automatic Trans
- S, 2D Hatchback, Eng CD CXBB, Standard Trans
- S, 4D Hatchback, Eng CD CXBA, Automatic Trans
- S, 4D Hatchback, Eng CD CXBA, Standard Trans
- S, 4D Hatchback, Eng CD CXBB, Automatic Trans
- S, 4D Hatchback, Eng CD CXBB, Standard Trans
- SE, Eng CD CXBA
- SE, Eng CD CXBB
- SEL, Eng CD CXBA
- SEL, Eng CD CXBB
-
GTI
- Autobahn, 2.0L Eng VIN 4, Automatic DCT Trans
- Autobahn, 2.0L Eng VIN 4, Standard Trans
- Autobahn, 2.0L Eng VIN T, Automatic DCT Trans
- Autobahn, 2.0L Eng VIN T, Standard Trans
- S, 2D Hatchback, 2.0L Eng VIN 4, Automatic DCT Trans
- S, 2D Hatchback, 2.0L Eng VIN 4, Standard Trans
- S, 2D Hatchback, 2.0L Eng VIN T, Automatic DCT Trans
- S, 2D Hatchback, 2.0L Eng VIN T, Standard Trans
- S, 4D Hatchback, 2.0L Eng VIN 4, Automatic DCT Trans
- S, 4D Hatchback, 2.0L Eng VIN 4, Standard Trans
- S, 4D Hatchback, 2.0L Eng VIN T, Automatic DCT Trans
- S, 4D Hatchback, 2.0L Eng VIN T, Standard Trans
- SE, 2D Hatchback, 2.0L Eng VIN 4, Automatic DCT Trans
- SE, 2D Hatchback, 2.0L Eng VIN 4, Standard Trans
- SE, 2D Hatchback, 2.0L Eng VIN T, Automatic DCT Trans
- SE, 2D Hatchback, 2.0L Eng VIN T, Standard Trans
- SE, 4D Hatchback, 2.0L Eng VIN 4, Automatic DCT Trans
- SE, 4D Hatchback, 2.0L Eng VIN 4, Standard Trans
- SE, 4D Hatchback, 2.0L Eng VIN T, Automatic DCT Trans
- SE, 4D Hatchback, 2.0L Eng VIN T, Standard Trans
-
Jetta
- GLI SE, 2.0L Eng VIN S, Automatic DCT Trans
- GLI SE, 2.0L Eng VIN S, Standard Trans
- GLI SE, 2.0L Eng VIN T, Automatic DCT Trans
- GLI SE, 2.0L Eng VIN T, Standard Trans
- GLI SEL, 2.0L Eng VIN S, Automatic DCT Trans
- GLI SEL, 2.0L Eng VIN S, Standard Trans
- GLI SEL, 2.0L Eng VIN T, Automatic DCT Trans
- GLI SEL, 2.0L Eng VIN T, Standard Trans
- Hybrid SEL Premium
- S, Automatic Trans
- S, Standard Trans
- SE, Automatic Trans
- SE, Standard Trans
- SEL, 1.8L Eng VIN 0 · 1.8L Eng VIN 02016: Jetta SEL
- SEL, 1.8L Eng VIN 1 · 1.8L Eng VIN 12016: Jetta SEL
- SEL Premium, 1.8L Eng VIN 0 · 1.8L Eng VIN 02016: Jetta SEL Premium
- SEL Premium, 1.8L Eng VIN 1 · 1.8L Eng VIN 12016: Jetta SEL Premium
- Sport, 1.8L Eng VIN 0, Automatic Trans
- Sport, 1.8L Eng VIN 0, Standard Trans
- Sport, 1.8L Eng VIN 1, Automatic Trans
- Sport, 1.8L Eng VIN 1, Standard Trans
-
Passat
- R-Line, 1.8L Eng VIN S · 1.8L Eng VIN S2016: Passat R-Line
- R-Line, 1.8L Eng VIN T · 1.8L Eng VIN T2016: Passat R-Line
- S, 1.8L Eng VIN S · 1.8L Eng VIN S2016: Passat S
- S, 1.8L Eng VIN T · 1.8L Eng VIN T2016: Passat S
- SE, 1.8L Eng VIN S · 1.8L Eng VIN S2016: Passat SE
- SE, 1.8L Eng VIN T · 1.8L Eng VIN T2016: Passat SE
- SEL, 1.8L Eng VIN S · 1.8L Eng VIN S2016: Passat SEL
- SEL, 1.8L Eng VIN T · 1.8L Eng VIN T2016: Passat SEL
- SEL Premium, 1.8L Eng VIN S · 1.8L Eng VIN S2016: Passat SEL Premium
- SEL Premium, 1.8L Eng VIN T · 1.8L Eng VIN T2016: Passat SEL Premium
- SEL Premium, 3.6L Eng VIN M · 3.6L Eng VIN M2016: Passat SEL Premium
-
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