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Home / DTC / P1715 — A/c switch

P1715 — A/c switch

Detailed page for trouble code P1715.

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23,694specific
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Code

P1715

DAEWOO P — Powertrain

A/c switch

Brand: DAEWOO
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Faulty A/C switch (request or clutch switch) or internal failure
  • Open or short in A/C switch wiring harness
  • Corroded or loose connector at the switch or module
  • Blown fuse or faulty A/C relay affecting the switch circuit
  • Faulty ECM/BCM input or ground circuit
  • Aftermarket equipment or recent repairs that disturbed wiring

Symptoms

  • A/C compressor/clutch does not engage or operates intermittently
  • Reduced or no cabin cooling
  • A/C indicator light may not illuminate or behaves erratically
  • Possible illumination of MIL or A/C-related warning
  • Unusual behavior after starting or when switching A/C on/off

What to check

  • Retrieve freeze frame and live data with a scan tool; note when code set and A/C request state
  • Visually inspect A/C switch, connector and wiring for damage, corrosion or loose pins
  • Check fuses and A/C relay in power distribution centers related to the A/C circuit
  • Backprobe switch connector to measure reference voltage, switched output and ground
  • Perform continuity and resistance checks on wiring between switch and module
  • Wiggle test wiring while observing scan tool data for intermittent failures

Signal parameters

  • Typical A/C switch is an on/off (binary) signal: closed = battery voltage (~10–14 V) to module or ground depending on design; open = ~0 V or open circuit
  • Switch continuity: closed ~0–5 ohms; open = infinite ohms
  • Reference supply (if present) normally ~5 V or battery voltage — check manufacturer wiring diagram
  • No-load current of switch is very low; short to ground or to battery will alter expected voltage

Diagnostic algorithm

  1. Confirm code and conditions: read DTCs and live data, note whether code is current, pending or historical.
  2. Verify basic items: check A/C fuse(s) and relay, inspect connectors at switch and module for corrosion or damage.
  3. Reproduce the fault: operate A/C while watching the scan tool for the A/C request signal and any dropouts.
  4. Backprobe the switch connector: with ignition ON, measure reference, output and ground. Compare to expected values.
  5. Check continuity between the switch and the controlling module connector; repair any open/shorted wires.
  6. If wiring and connectors are good, substitute a known-good switch or bench-test the suspect switch per service data.
  7. If after replacing switch and repairing wiring the fault remains, test/replace the controlling module or inspect for internal faults per factory procedures.
  8. Clear codes and road-test to verify repair. Monitor for reoccurrence over multiple cycles.

Likely causes

  • Connector pins pushed back, corroded or contaminated
  • Broken wire at a harness flex point (near dash, firewall or compressor)
  • A/C switch has failed mechanically/electrically
  • Relay or fuse related to A/C control is defective
  • Intermittent ground or reference voltage to the switch

Fault status

⚠️ Status
A/C switch circuit malfunction detected (P1715). The control module detected an abnormal or missing signal from the A/C switch — inspect switch, wiring, connectors, fuses and relays.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5 - 2.0 hours

Similar codes

P0530 P0531 P0480 P0481 B1238
Repair manuals

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75

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Code

P1715

FORD P — Powertrain

SSB Inductive Signature Malfunction

Brand: FORD
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Faulty A/C switch (request or clutch switch) or internal failure
  • Open or short in A/C switch wiring harness
  • Corroded or loose connector at the switch or module
  • Blown fuse or faulty A/C relay affecting the switch circuit
  • Faulty ECM/BCM input or ground circuit
  • Aftermarket equipment or recent repairs that disturbed wiring

Symptoms

  • A/C compressor/clutch does not engage or operates intermittently
  • Reduced or no cabin cooling
  • A/C indicator light may not illuminate or behaves erratically
  • Possible illumination of MIL or A/C-related warning
  • Unusual behavior after starting or when switching A/C on/off

What to check

  • Retrieve freeze frame and live data with a scan tool; note when code set and A/C request state
  • Visually inspect A/C switch, connector and wiring for damage, corrosion or loose pins
  • Check fuses and A/C relay in power distribution centers related to the A/C circuit
  • Backprobe switch connector to measure reference voltage, switched output and ground
  • Perform continuity and resistance checks on wiring between switch and module
  • Wiggle test wiring while observing scan tool data for intermittent failures

Signal parameters

  • Typical A/C switch is an on/off (binary) signal: closed = battery voltage (~10–14 V) to module or ground depending on design; open = ~0 V or open circuit
  • Switch continuity: closed ~0–5 ohms; open = infinite ohms
  • Reference supply (if present) normally ~5 V or battery voltage — check manufacturer wiring diagram
  • No-load current of switch is very low; short to ground or to battery will alter expected voltage

Diagnostic algorithm

  1. Confirm code and conditions: read DTCs and live data, note whether code is current, pending or historical.
  2. Verify basic items: check A/C fuse(s) and relay, inspect connectors at switch and module for corrosion or damage.
  3. Reproduce the fault: operate A/C while watching the scan tool for the A/C request signal and any dropouts.
  4. Backprobe the switch connector: with ignition ON, measure reference, output and ground. Compare to expected values.
  5. Check continuity between the switch and the controlling module connector; repair any open/shorted wires.
  6. If wiring and connectors are good, substitute a known-good switch or bench-test the suspect switch per service data.
  7. If after replacing switch and repairing wiring the fault remains, test/replace the controlling module or inspect for internal faults per factory procedures.
  8. Clear codes and road-test to verify repair. Monitor for reoccurrence over multiple cycles.

Likely causes

  • Connector pins pushed back, corroded or contaminated
  • Broken wire at a harness flex point (near dash, firewall or compressor)
  • A/C switch has failed mechanically/electrically
  • Relay or fuse related to A/C control is defective
  • Intermittent ground or reference voltage to the switch

Fault status

⚠️ Status
A/C switch circuit malfunction detected (P1715). The control module detected an abnormal or missing signal from the A/C switch — inspect switch, wiring, connectors, fuses and relays.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5 - 2.0 hours

Similar codes

P0530 P0531 P0480 P0481 B1238
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Code

P1715

LAND ROVER P — Powertrain

Malfunction of the signature B inductive solenoid

Brand: LAND ROVER
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Faulty A/C switch (request or clutch switch) or internal failure
  • Open or short in A/C switch wiring harness
  • Corroded or loose connector at the switch or module
  • Blown fuse or faulty A/C relay affecting the switch circuit
  • Faulty ECM/BCM input or ground circuit
  • Aftermarket equipment or recent repairs that disturbed wiring

Symptoms

  • A/C compressor/clutch does not engage or operates intermittently
  • Reduced or no cabin cooling
  • A/C indicator light may not illuminate or behaves erratically
  • Possible illumination of MIL or A/C-related warning
  • Unusual behavior after starting or when switching A/C on/off

What to check

  • Retrieve freeze frame and live data with a scan tool; note when code set and A/C request state
  • Visually inspect A/C switch, connector and wiring for damage, corrosion or loose pins
  • Check fuses and A/C relay in power distribution centers related to the A/C circuit
  • Backprobe switch connector to measure reference voltage, switched output and ground
  • Perform continuity and resistance checks on wiring between switch and module
  • Wiggle test wiring while observing scan tool data for intermittent failures

Signal parameters

  • Typical A/C switch is an on/off (binary) signal: closed = battery voltage (~10–14 V) to module or ground depending on design; open = ~0 V or open circuit
  • Switch continuity: closed ~0–5 ohms; open = infinite ohms
  • Reference supply (if present) normally ~5 V or battery voltage — check manufacturer wiring diagram
  • No-load current of switch is very low; short to ground or to battery will alter expected voltage

Diagnostic algorithm

  1. Confirm code and conditions: read DTCs and live data, note whether code is current, pending or historical.
  2. Verify basic items: check A/C fuse(s) and relay, inspect connectors at switch and module for corrosion or damage.
  3. Reproduce the fault: operate A/C while watching the scan tool for the A/C request signal and any dropouts.
  4. Backprobe the switch connector: with ignition ON, measure reference, output and ground. Compare to expected values.
  5. Check continuity between the switch and the controlling module connector; repair any open/shorted wires.
  6. If wiring and connectors are good, substitute a known-good switch or bench-test the suspect switch per service data.
  7. If after replacing switch and repairing wiring the fault remains, test/replace the controlling module or inspect for internal faults per factory procedures.
  8. Clear codes and road-test to verify repair. Monitor for reoccurrence over multiple cycles.

Likely causes

  • Connector pins pushed back, corroded or contaminated
  • Broken wire at a harness flex point (near dash, firewall or compressor)
  • A/C switch has failed mechanically/electrically
  • Relay or fuse related to A/C control is defective
  • Intermittent ground or reference voltage to the switch

Fault status

⚠️ Status
A/C switch circuit malfunction detected (P1715). The control module detected an abnormal or missing signal from the A/C switch — inspect switch, wiring, connectors, fuses and relays.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5 - 2.0 hours

Similar codes

P0530 P0531 P0480 P0481 B1238
413

Browse 413 LAND ROVER manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

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Code

P1715

LINCOLN P — Powertrain

SSB Inductive Signature Malfunction

Brand: LINCOLN
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Faulty A/C switch (request or clutch switch) or internal failure
  • Open or short in A/C switch wiring harness
  • Corroded or loose connector at the switch or module
  • Blown fuse or faulty A/C relay affecting the switch circuit
  • Faulty ECM/BCM input or ground circuit
  • Aftermarket equipment or recent repairs that disturbed wiring

Symptoms

  • A/C compressor/clutch does not engage or operates intermittently
  • Reduced or no cabin cooling
  • A/C indicator light may not illuminate or behaves erratically
  • Possible illumination of MIL or A/C-related warning
  • Unusual behavior after starting or when switching A/C on/off

What to check

  • Retrieve freeze frame and live data with a scan tool; note when code set and A/C request state
  • Visually inspect A/C switch, connector and wiring for damage, corrosion or loose pins
  • Check fuses and A/C relay in power distribution centers related to the A/C circuit
  • Backprobe switch connector to measure reference voltage, switched output and ground
  • Perform continuity and resistance checks on wiring between switch and module
  • Wiggle test wiring while observing scan tool data for intermittent failures

Signal parameters

  • Typical A/C switch is an on/off (binary) signal: closed = battery voltage (~10–14 V) to module or ground depending on design; open = ~0 V or open circuit
  • Switch continuity: closed ~0–5 ohms; open = infinite ohms
  • Reference supply (if present) normally ~5 V or battery voltage — check manufacturer wiring diagram
  • No-load current of switch is very low; short to ground or to battery will alter expected voltage

Diagnostic algorithm

  1. Confirm code and conditions: read DTCs and live data, note whether code is current, pending or historical.
  2. Verify basic items: check A/C fuse(s) and relay, inspect connectors at switch and module for corrosion or damage.
  3. Reproduce the fault: operate A/C while watching the scan tool for the A/C request signal and any dropouts.
  4. Backprobe the switch connector: with ignition ON, measure reference, output and ground. Compare to expected values.
  5. Check continuity between the switch and the controlling module connector; repair any open/shorted wires.
  6. If wiring and connectors are good, substitute a known-good switch or bench-test the suspect switch per service data.
  7. If after replacing switch and repairing wiring the fault remains, test/replace the controlling module or inspect for internal faults per factory procedures.
  8. Clear codes and road-test to verify repair. Monitor for reoccurrence over multiple cycles.

Likely causes

  • Connector pins pushed back, corroded or contaminated
  • Broken wire at a harness flex point (near dash, firewall or compressor)
  • A/C switch has failed mechanically/electrically
  • Relay or fuse related to A/C control is defective
  • Intermittent ground or reference voltage to the switch

Fault status

⚠️ Status
A/C switch circuit malfunction detected (P1715). The control module detected an abnormal or missing signal from the A/C switch — inspect switch, wiring, connectors, fuses and relays.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5 - 2.0 hours

Similar codes

P0530 P0531 P0480 P0481 B1238
166

Browse 166 LINCOLN manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

LINCOLN

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Code

P1715

MAZDA P — Powertrain

Shift Solenoid 2 Mechanical Fault

Brand: MAZDA
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Faulty A/C switch (request or clutch switch) or internal failure
  • Open or short in A/C switch wiring harness
  • Corroded or loose connector at the switch or module
  • Blown fuse or faulty A/C relay affecting the switch circuit
  • Faulty ECM/BCM input or ground circuit
  • Aftermarket equipment or recent repairs that disturbed wiring

Symptoms

  • A/C compressor/clutch does not engage or operates intermittently
  • Reduced or no cabin cooling
  • A/C indicator light may not illuminate or behaves erratically
  • Possible illumination of MIL or A/C-related warning
  • Unusual behavior after starting or when switching A/C on/off

What to check

  • Retrieve freeze frame and live data with a scan tool; note when code set and A/C request state
  • Visually inspect A/C switch, connector and wiring for damage, corrosion or loose pins
  • Check fuses and A/C relay in power distribution centers related to the A/C circuit
  • Backprobe switch connector to measure reference voltage, switched output and ground
  • Perform continuity and resistance checks on wiring between switch and module
  • Wiggle test wiring while observing scan tool data for intermittent failures

Signal parameters

  • Typical A/C switch is an on/off (binary) signal: closed = battery voltage (~10–14 V) to module or ground depending on design; open = ~0 V or open circuit
  • Switch continuity: closed ~0–5 ohms; open = infinite ohms
  • Reference supply (if present) normally ~5 V or battery voltage — check manufacturer wiring diagram
  • No-load current of switch is very low; short to ground or to battery will alter expected voltage

Diagnostic algorithm

  1. Confirm code and conditions: read DTCs and live data, note whether code is current, pending or historical.
  2. Verify basic items: check A/C fuse(s) and relay, inspect connectors at switch and module for corrosion or damage.
  3. Reproduce the fault: operate A/C while watching the scan tool for the A/C request signal and any dropouts.
  4. Backprobe the switch connector: with ignition ON, measure reference, output and ground. Compare to expected values.
  5. Check continuity between the switch and the controlling module connector; repair any open/shorted wires.
  6. If wiring and connectors are good, substitute a known-good switch or bench-test the suspect switch per service data.
  7. If after replacing switch and repairing wiring the fault remains, test/replace the controlling module or inspect for internal faults per factory procedures.
  8. Clear codes and road-test to verify repair. Monitor for reoccurrence over multiple cycles.

Likely causes

  • Connector pins pushed back, corroded or contaminated
  • Broken wire at a harness flex point (near dash, firewall or compressor)
  • A/C switch has failed mechanically/electrically
  • Relay or fuse related to A/C control is defective
  • Intermittent ground or reference voltage to the switch

Fault status

⚠️ Status
A/C switch circuit malfunction detected (P1715). The control module detected an abnormal or missing signal from the A/C switch — inspect switch, wiring, connectors, fuses and relays.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5 - 2.0 hours

Similar codes

P0530 P0531 P0480 P0481 B1238
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Code

P1715

MERCURY P — Powertrain

SSB Inductive Signature Malfunction

Brand: MERCURY
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Faulty A/C switch (request or clutch switch) or internal failure
  • Open or short in A/C switch wiring harness
  • Corroded or loose connector at the switch or module
  • Blown fuse or faulty A/C relay affecting the switch circuit
  • Faulty ECM/BCM input or ground circuit
  • Aftermarket equipment or recent repairs that disturbed wiring

Symptoms

  • A/C compressor/clutch does not engage or operates intermittently
  • Reduced or no cabin cooling
  • A/C indicator light may not illuminate or behaves erratically
  • Possible illumination of MIL or A/C-related warning
  • Unusual behavior after starting or when switching A/C on/off

What to check

  • Retrieve freeze frame and live data with a scan tool; note when code set and A/C request state
  • Visually inspect A/C switch, connector and wiring for damage, corrosion or loose pins
  • Check fuses and A/C relay in power distribution centers related to the A/C circuit
  • Backprobe switch connector to measure reference voltage, switched output and ground
  • Perform continuity and resistance checks on wiring between switch and module
  • Wiggle test wiring while observing scan tool data for intermittent failures

Signal parameters

  • Typical A/C switch is an on/off (binary) signal: closed = battery voltage (~10–14 V) to module or ground depending on design; open = ~0 V or open circuit
  • Switch continuity: closed ~0–5 ohms; open = infinite ohms
  • Reference supply (if present) normally ~5 V or battery voltage — check manufacturer wiring diagram
  • No-load current of switch is very low; short to ground or to battery will alter expected voltage

Diagnostic algorithm

  1. Confirm code and conditions: read DTCs and live data, note whether code is current, pending or historical.
  2. Verify basic items: check A/C fuse(s) and relay, inspect connectors at switch and module for corrosion or damage.
  3. Reproduce the fault: operate A/C while watching the scan tool for the A/C request signal and any dropouts.
  4. Backprobe the switch connector: with ignition ON, measure reference, output and ground. Compare to expected values.
  5. Check continuity between the switch and the controlling module connector; repair any open/shorted wires.
  6. If wiring and connectors are good, substitute a known-good switch or bench-test the suspect switch per service data.
  7. If after replacing switch and repairing wiring the fault remains, test/replace the controlling module or inspect for internal faults per factory procedures.
  8. Clear codes and road-test to verify repair. Monitor for reoccurrence over multiple cycles.

Likely causes

  • Connector pins pushed back, corroded or contaminated
  • Broken wire at a harness flex point (near dash, firewall or compressor)
  • A/C switch has failed mechanically/electrically
  • Relay or fuse related to A/C control is defective
  • Intermittent ground or reference voltage to the switch

Fault status

⚠️ Status
A/C switch circuit malfunction detected (P1715). The control module detected an abnormal or missing signal from the A/C switch — inspect switch, wiring, connectors, fuses and relays.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5 - 2.0 hours

Similar codes

P0530 P0531 P0480 P0481 B1238
296

Browse 296 MERCURY manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

MERCURY

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Code

P1715

MITSUBISHI P — Powertrain

Pulse Generator Assembly

Brand: MITSUBISHI
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Faulty A/C switch (request or clutch switch) or internal failure
  • Open or short in A/C switch wiring harness
  • Corroded or loose connector at the switch or module
  • Blown fuse or faulty A/C relay affecting the switch circuit
  • Faulty ECM/BCM input or ground circuit
  • Aftermarket equipment or recent repairs that disturbed wiring

Symptoms

  • A/C compressor/clutch does not engage or operates intermittently
  • Reduced or no cabin cooling
  • A/C indicator light may not illuminate or behaves erratically
  • Possible illumination of MIL or A/C-related warning
  • Unusual behavior after starting or when switching A/C on/off

What to check

  • Retrieve freeze frame and live data with a scan tool; note when code set and A/C request state
  • Visually inspect A/C switch, connector and wiring for damage, corrosion or loose pins
  • Check fuses and A/C relay in power distribution centers related to the A/C circuit
  • Backprobe switch connector to measure reference voltage, switched output and ground
  • Perform continuity and resistance checks on wiring between switch and module
  • Wiggle test wiring while observing scan tool data for intermittent failures

Signal parameters

  • Typical A/C switch is an on/off (binary) signal: closed = battery voltage (~10–14 V) to module or ground depending on design; open = ~0 V or open circuit
  • Switch continuity: closed ~0–5 ohms; open = infinite ohms
  • Reference supply (if present) normally ~5 V or battery voltage — check manufacturer wiring diagram
  • No-load current of switch is very low; short to ground or to battery will alter expected voltage

Diagnostic algorithm

  1. Confirm code and conditions: read DTCs and live data, note whether code is current, pending or historical.
  2. Verify basic items: check A/C fuse(s) and relay, inspect connectors at switch and module for corrosion or damage.
  3. Reproduce the fault: operate A/C while watching the scan tool for the A/C request signal and any dropouts.
  4. Backprobe the switch connector: with ignition ON, measure reference, output and ground. Compare to expected values.
  5. Check continuity between the switch and the controlling module connector; repair any open/shorted wires.
  6. If wiring and connectors are good, substitute a known-good switch or bench-test the suspect switch per service data.
  7. If after replacing switch and repairing wiring the fault remains, test/replace the controlling module or inspect for internal faults per factory procedures.
  8. Clear codes and road-test to verify repair. Monitor for reoccurrence over multiple cycles.

Likely causes

  • Connector pins pushed back, corroded or contaminated
  • Broken wire at a harness flex point (near dash, firewall or compressor)
  • A/C switch has failed mechanically/electrically
  • Relay or fuse related to A/C control is defective
  • Intermittent ground or reference voltage to the switch

Fault status

⚠️ Status
A/C switch circuit malfunction detected (P1715). The control module detected an abnormal or missing signal from the A/C switch — inspect switch, wiring, connectors, fuses and relays.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5 - 2.0 hours

Similar codes

P0530 P0531 P0480 P0481 B1238
406

Browse 406 MITSUBISHI manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

MITSUBISHI

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Code

P1715

Other P — Powertrain

SSB Inductive Signature Malfunction

Brand: Other
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Faulty A/C switch (request or clutch switch) or internal failure
  • Open or short in A/C switch wiring harness
  • Corroded or loose connector at the switch or module
  • Blown fuse or faulty A/C relay affecting the switch circuit
  • Faulty ECM/BCM input or ground circuit
  • Aftermarket equipment or recent repairs that disturbed wiring

Symptoms

  • A/C compressor/clutch does not engage or operates intermittently
  • Reduced or no cabin cooling
  • A/C indicator light may not illuminate or behaves erratically
  • Possible illumination of MIL or A/C-related warning
  • Unusual behavior after starting or when switching A/C on/off

What to check

  • Retrieve freeze frame and live data with a scan tool; note when code set and A/C request state
  • Visually inspect A/C switch, connector and wiring for damage, corrosion or loose pins
  • Check fuses and A/C relay in power distribution centers related to the A/C circuit
  • Backprobe switch connector to measure reference voltage, switched output and ground
  • Perform continuity and resistance checks on wiring between switch and module
  • Wiggle test wiring while observing scan tool data for intermittent failures

Signal parameters

  • Typical A/C switch is an on/off (binary) signal: closed = battery voltage (~10–14 V) to module or ground depending on design; open = ~0 V or open circuit
  • Switch continuity: closed ~0–5 ohms; open = infinite ohms
  • Reference supply (if present) normally ~5 V or battery voltage — check manufacturer wiring diagram
  • No-load current of switch is very low; short to ground or to battery will alter expected voltage

Diagnostic algorithm

  1. Confirm code and conditions: read DTCs and live data, note whether code is current, pending or historical.
  2. Verify basic items: check A/C fuse(s) and relay, inspect connectors at switch and module for corrosion or damage.
  3. Reproduce the fault: operate A/C while watching the scan tool for the A/C request signal and any dropouts.
  4. Backprobe the switch connector: with ignition ON, measure reference, output and ground. Compare to expected values.
  5. Check continuity between the switch and the controlling module connector; repair any open/shorted wires.
  6. If wiring and connectors are good, substitute a known-good switch or bench-test the suspect switch per service data.
  7. If after replacing switch and repairing wiring the fault remains, test/replace the controlling module or inspect for internal faults per factory procedures.
  8. Clear codes and road-test to verify repair. Monitor for reoccurrence over multiple cycles.

Likely causes

  • Connector pins pushed back, corroded or contaminated
  • Broken wire at a harness flex point (near dash, firewall or compressor)
  • A/C switch has failed mechanically/electrically
  • Relay or fuse related to A/C control is defective
  • Intermittent ground or reference voltage to the switch

Fault status

⚠️ Status
A/C switch circuit malfunction detected (P1715). The control module detected an abnormal or missing signal from the A/C switch — inspect switch, wiring, connectors, fuses and relays.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5 - 2.0 hours

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Code

P1715

SUZUKI P — Powertrain

PNP Switch Circuit Fault

Brand: SUZUKI
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Faulty A/C switch (request or clutch switch) or internal failure
  • Open or short in A/C switch wiring harness
  • Corroded or loose connector at the switch or module
  • Blown fuse or faulty A/C relay affecting the switch circuit
  • Faulty ECM/BCM input or ground circuit
  • Aftermarket equipment or recent repairs that disturbed wiring

Symptoms

  • A/C compressor/clutch does not engage or operates intermittently
  • Reduced or no cabin cooling
  • A/C indicator light may not illuminate or behaves erratically
  • Possible illumination of MIL or A/C-related warning
  • Unusual behavior after starting or when switching A/C on/off

What to check

  • Retrieve freeze frame and live data with a scan tool; note when code set and A/C request state
  • Visually inspect A/C switch, connector and wiring for damage, corrosion or loose pins
  • Check fuses and A/C relay in power distribution centers related to the A/C circuit
  • Backprobe switch connector to measure reference voltage, switched output and ground
  • Perform continuity and resistance checks on wiring between switch and module
  • Wiggle test wiring while observing scan tool data for intermittent failures

Signal parameters

  • Typical A/C switch is an on/off (binary) signal: closed = battery voltage (~10–14 V) to module or ground depending on design; open = ~0 V or open circuit
  • Switch continuity: closed ~0–5 ohms; open = infinite ohms
  • Reference supply (if present) normally ~5 V or battery voltage — check manufacturer wiring diagram
  • No-load current of switch is very low; short to ground or to battery will alter expected voltage

Diagnostic algorithm

  1. Confirm code and conditions: read DTCs and live data, note whether code is current, pending or historical.
  2. Verify basic items: check A/C fuse(s) and relay, inspect connectors at switch and module for corrosion or damage.
  3. Reproduce the fault: operate A/C while watching the scan tool for the A/C request signal and any dropouts.
  4. Backprobe the switch connector: with ignition ON, measure reference, output and ground. Compare to expected values.
  5. Check continuity between the switch and the controlling module connector; repair any open/shorted wires.
  6. If wiring and connectors are good, substitute a known-good switch or bench-test the suspect switch per service data.
  7. If after replacing switch and repairing wiring the fault remains, test/replace the controlling module or inspect for internal faults per factory procedures.
  8. Clear codes and road-test to verify repair. Monitor for reoccurrence over multiple cycles.

Likely causes

  • Connector pins pushed back, corroded or contaminated
  • Broken wire at a harness flex point (near dash, firewall or compressor)
  • A/C switch has failed mechanically/electrically
  • Relay or fuse related to A/C control is defective
  • Intermittent ground or reference voltage to the switch

Fault status

⚠️ Status
A/C switch circuit malfunction detected (P1715). The control module detected an abnormal or missing signal from the A/C switch — inspect switch, wiring, connectors, fuses and relays.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5 - 2.0 hours

Similar codes

P0530 P0531 P0480 P0481 B1238
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