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Home / DTC / P1474 — Low Fan Control Primary Circuit

P1474 — Low Fan Control Primary Circuit

Detailed page for trouble code P1474.

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59brands
11,575generic
22,491specific
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Code

P1474

FORD P — Powertrain

Low Fan Control Primary Circuit

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

Causes

  • Open or short in cooling fan low-speed control wiring
  • Corroded, loose, or damaged connector at fan, relay, or PCM
  • Failed cooling fan motor (low-speed winding)
  • Faulty fan control relay or fan control module
  • Faulty PCM or damaged low-side driver
  • Blown fuse or poor battery/ground connection

Symptoms

  • Cooling fan does not run on low speed or does not run at all
  • Fan may run only on high speed (if high-speed circuit still works)
  • Engine temperature rise in traffic or at idle
  • Reduced air conditioning performance
  • Check Engine Light (MIL) illuminated with stored code

What to check

  • Perform a visual inspection of fan, wiring, connectors, fuses, and relays for damage or corrosion
  • Scan for additional codes and freeze frame data
  • Attempt to command fan low speed on with a scan tool and observe behavior
  • Back-probe fan control connector and measure voltage and ground while commanding fan
  • Measure continuity and resistance of fan motor low-speed winding (compare to spec)
  • Check for voltage at relay coil and supply, and verify relay operation

Signal parameters

  • Control output type: usually PCM low-side (ground) switching or fan module command
  • Expected voltage at control pin when commanded ON: near 0 V (ground) for low-side switch
  • Expected voltage at control pin when OFF: approximately battery voltage (open/high-Z) or per vehicle design
  • Fan motor current: draws several amps when running; exact value varies by model (compare to service manual)
  • Resistance of low-speed winding: should be within manufacturer specification; open or very high resistance indicates failure

Diagnostic algorithm

  1. Safety: Park vehicle, set parking brake, allow engine to cool, disconnect battery if required by service manual.
  2. Retrieve freeze frame and related codes with a scan tool. Note fan operation requests and engine temp.
  3. Visually inspect fan assembly, wiring harness, connectors, fuses and relays for damage, corrosion, or water intrusion.
  4. With key on (engine off) and using a scan tool, command the low-speed fan ON. Observe whether the fan runs and listen for motor.
  5. If fan does not run, back-probe the fan control connector. Command fan ON and measure voltage between control pin and battery positive/ground. Verify control behaves as expected (switches to ground or as specified).
  6. Check supply voltage at fan motor power feed and continuity to battery/fuse/relay. Verify relay coil and contacts operate when commanded.
  7. With power applied directly (fused jumper) to the fan low-speed terminal, verify motor runs. If motor does not run when directly powered, replace fan motor.
  8. If motor runs when directly powered but control circuit does not command correctly, test wiring from fan to PCM for shorts/opens and measure resistance. Repair any damaged wiring/connectors.
  9. If wiring and fan test good, test or replace the fan relay or fan control module per service manual. If low-side driver at PCM is suspected, perform PCM driver tests per factory procedures; replace PCM only after ruling out wiring, relay, and fan.
  10. After repairs, clear codes, retest fan operation under conditions that previously generated the code, and confirm no recurrence.

Likely causes

  • Damaged or disconnected wiring/connectors at the fan
  • Failed cooling fan motor or low-speed coil
  • Faulty fan relay or control module
  • Poor ground or blown fuse

Fault status

⚠️ Status
P1474 - Low Fan Control Primary Circuit: PCM detected an open, short, or abnormal voltage/current condition in the low-speed cooling fan control circuit.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hrs

Similar codes

P0480 P0481 P0482 P0483
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Code

P1474

LAND ROVER P — Powertrain

Malfunction of the water pump circuit of the intercooler

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

Causes

  • Open or short in cooling fan low-speed control wiring
  • Corroded, loose, or damaged connector at fan, relay, or PCM
  • Failed cooling fan motor (low-speed winding)
  • Faulty fan control relay or fan control module
  • Faulty PCM or damaged low-side driver
  • Blown fuse or poor battery/ground connection

Symptoms

  • Cooling fan does not run on low speed or does not run at all
  • Fan may run only on high speed (if high-speed circuit still works)
  • Engine temperature rise in traffic or at idle
  • Reduced air conditioning performance
  • Check Engine Light (MIL) illuminated with stored code

What to check

  • Perform a visual inspection of fan, wiring, connectors, fuses, and relays for damage or corrosion
  • Scan for additional codes and freeze frame data
  • Attempt to command fan low speed on with a scan tool and observe behavior
  • Back-probe fan control connector and measure voltage and ground while commanding fan
  • Measure continuity and resistance of fan motor low-speed winding (compare to spec)
  • Check for voltage at relay coil and supply, and verify relay operation

Signal parameters

  • Control output type: usually PCM low-side (ground) switching or fan module command
  • Expected voltage at control pin when commanded ON: near 0 V (ground) for low-side switch
  • Expected voltage at control pin when OFF: approximately battery voltage (open/high-Z) or per vehicle design
  • Fan motor current: draws several amps when running; exact value varies by model (compare to service manual)
  • Resistance of low-speed winding: should be within manufacturer specification; open or very high resistance indicates failure

Diagnostic algorithm

  1. Safety: Park vehicle, set parking brake, allow engine to cool, disconnect battery if required by service manual.
  2. Retrieve freeze frame and related codes with a scan tool. Note fan operation requests and engine temp.
  3. Visually inspect fan assembly, wiring harness, connectors, fuses and relays for damage, corrosion, or water intrusion.
  4. With key on (engine off) and using a scan tool, command the low-speed fan ON. Observe whether the fan runs and listen for motor.
  5. If fan does not run, back-probe the fan control connector. Command fan ON and measure voltage between control pin and battery positive/ground. Verify control behaves as expected (switches to ground or as specified).
  6. Check supply voltage at fan motor power feed and continuity to battery/fuse/relay. Verify relay coil and contacts operate when commanded.
  7. With power applied directly (fused jumper) to the fan low-speed terminal, verify motor runs. If motor does not run when directly powered, replace fan motor.
  8. If motor runs when directly powered but control circuit does not command correctly, test wiring from fan to PCM for shorts/opens and measure resistance. Repair any damaged wiring/connectors.
  9. If wiring and fan test good, test or replace the fan relay or fan control module per service manual. If low-side driver at PCM is suspected, perform PCM driver tests per factory procedures; replace PCM only after ruling out wiring, relay, and fan.
  10. After repairs, clear codes, retest fan operation under conditions that previously generated the code, and confirm no recurrence.

Likely causes

  • Damaged or disconnected wiring/connectors at the fan
  • Failed cooling fan motor or low-speed coil
  • Faulty fan relay or control module
  • Poor ground or blown fuse

Fault status

⚠️ Status
P1474 - Low Fan Control Primary Circuit: PCM detected an open, short, or abnormal voltage/current condition in the low-speed cooling fan control circuit.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hrs

Similar codes

P0480 P0481 P0482 P0483
320

Browse 320 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

P1474

LINCOLN P — Powertrain

Low Fan Control Primary Circuit

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

Causes

  • Open or short in cooling fan low-speed control wiring
  • Corroded, loose, or damaged connector at fan, relay, or PCM
  • Failed cooling fan motor (low-speed winding)
  • Faulty fan control relay or fan control module
  • Faulty PCM or damaged low-side driver
  • Blown fuse or poor battery/ground connection

Symptoms

  • Cooling fan does not run on low speed or does not run at all
  • Fan may run only on high speed (if high-speed circuit still works)
  • Engine temperature rise in traffic or at idle
  • Reduced air conditioning performance
  • Check Engine Light (MIL) illuminated with stored code

What to check

  • Perform a visual inspection of fan, wiring, connectors, fuses, and relays for damage or corrosion
  • Scan for additional codes and freeze frame data
  • Attempt to command fan low speed on with a scan tool and observe behavior
  • Back-probe fan control connector and measure voltage and ground while commanding fan
  • Measure continuity and resistance of fan motor low-speed winding (compare to spec)
  • Check for voltage at relay coil and supply, and verify relay operation

Signal parameters

  • Control output type: usually PCM low-side (ground) switching or fan module command
  • Expected voltage at control pin when commanded ON: near 0 V (ground) for low-side switch
  • Expected voltage at control pin when OFF: approximately battery voltage (open/high-Z) or per vehicle design
  • Fan motor current: draws several amps when running; exact value varies by model (compare to service manual)
  • Resistance of low-speed winding: should be within manufacturer specification; open or very high resistance indicates failure

Diagnostic algorithm

  1. Safety: Park vehicle, set parking brake, allow engine to cool, disconnect battery if required by service manual.
  2. Retrieve freeze frame and related codes with a scan tool. Note fan operation requests and engine temp.
  3. Visually inspect fan assembly, wiring harness, connectors, fuses and relays for damage, corrosion, or water intrusion.
  4. With key on (engine off) and using a scan tool, command the low-speed fan ON. Observe whether the fan runs and listen for motor.
  5. If fan does not run, back-probe the fan control connector. Command fan ON and measure voltage between control pin and battery positive/ground. Verify control behaves as expected (switches to ground or as specified).
  6. Check supply voltage at fan motor power feed and continuity to battery/fuse/relay. Verify relay coil and contacts operate when commanded.
  7. With power applied directly (fused jumper) to the fan low-speed terminal, verify motor runs. If motor does not run when directly powered, replace fan motor.
  8. If motor runs when directly powered but control circuit does not command correctly, test wiring from fan to PCM for shorts/opens and measure resistance. Repair any damaged wiring/connectors.
  9. If wiring and fan test good, test or replace the fan relay or fan control module per service manual. If low-side driver at PCM is suspected, perform PCM driver tests per factory procedures; replace PCM only after ruling out wiring, relay, and fan.
  10. After repairs, clear codes, retest fan operation under conditions that previously generated the code, and confirm no recurrence.

Likely causes

  • Damaged or disconnected wiring/connectors at the fan
  • Failed cooling fan motor or low-speed coil
  • Faulty fan relay or control module
  • Poor ground or blown fuse

Fault status

⚠️ Status
P1474 - Low Fan Control Primary Circuit: PCM detected an open, short, or abnormal voltage/current condition in the low-speed cooling fan control circuit.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hrs

Similar codes

P0480 P0481 P0482 P0483
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

P1474

MERCURY P — Powertrain

Low Fan Control Primary Circuit

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

Causes

  • Open or short in cooling fan low-speed control wiring
  • Corroded, loose, or damaged connector at fan, relay, or PCM
  • Failed cooling fan motor (low-speed winding)
  • Faulty fan control relay or fan control module
  • Faulty PCM or damaged low-side driver
  • Blown fuse or poor battery/ground connection

Symptoms

  • Cooling fan does not run on low speed or does not run at all
  • Fan may run only on high speed (if high-speed circuit still works)
  • Engine temperature rise in traffic or at idle
  • Reduced air conditioning performance
  • Check Engine Light (MIL) illuminated with stored code

What to check

  • Perform a visual inspection of fan, wiring, connectors, fuses, and relays for damage or corrosion
  • Scan for additional codes and freeze frame data
  • Attempt to command fan low speed on with a scan tool and observe behavior
  • Back-probe fan control connector and measure voltage and ground while commanding fan
  • Measure continuity and resistance of fan motor low-speed winding (compare to spec)
  • Check for voltage at relay coil and supply, and verify relay operation

Signal parameters

  • Control output type: usually PCM low-side (ground) switching or fan module command
  • Expected voltage at control pin when commanded ON: near 0 V (ground) for low-side switch
  • Expected voltage at control pin when OFF: approximately battery voltage (open/high-Z) or per vehicle design
  • Fan motor current: draws several amps when running; exact value varies by model (compare to service manual)
  • Resistance of low-speed winding: should be within manufacturer specification; open or very high resistance indicates failure

Diagnostic algorithm

  1. Safety: Park vehicle, set parking brake, allow engine to cool, disconnect battery if required by service manual.
  2. Retrieve freeze frame and related codes with a scan tool. Note fan operation requests and engine temp.
  3. Visually inspect fan assembly, wiring harness, connectors, fuses and relays for damage, corrosion, or water intrusion.
  4. With key on (engine off) and using a scan tool, command the low-speed fan ON. Observe whether the fan runs and listen for motor.
  5. If fan does not run, back-probe the fan control connector. Command fan ON and measure voltage between control pin and battery positive/ground. Verify control behaves as expected (switches to ground or as specified).
  6. Check supply voltage at fan motor power feed and continuity to battery/fuse/relay. Verify relay coil and contacts operate when commanded.
  7. With power applied directly (fused jumper) to the fan low-speed terminal, verify motor runs. If motor does not run when directly powered, replace fan motor.
  8. If motor runs when directly powered but control circuit does not command correctly, test wiring from fan to PCM for shorts/opens and measure resistance. Repair any damaged wiring/connectors.
  9. If wiring and fan test good, test or replace the fan relay or fan control module per service manual. If low-side driver at PCM is suspected, perform PCM driver tests per factory procedures; replace PCM only after ruling out wiring, relay, and fan.
  10. After repairs, clear codes, retest fan operation under conditions that previously generated the code, and confirm no recurrence.

Likely causes

  • Damaged or disconnected wiring/connectors at the fan
  • Failed cooling fan motor or low-speed coil
  • Faulty fan relay or control module
  • Poor ground or blown fuse

Fault status

⚠️ Status
P1474 - Low Fan Control Primary Circuit: PCM detected an open, short, or abnormal voltage/current condition in the low-speed cooling fan control circuit.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hrs

Similar codes

P0480 P0481 P0482 P0483
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

P1474

MITSUBISHI P — Powertrain

TEMP.sensor(for DPF PRS.SNSR) LO

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

Causes

  • Open or short in cooling fan low-speed control wiring
  • Corroded, loose, or damaged connector at fan, relay, or PCM
  • Failed cooling fan motor (low-speed winding)
  • Faulty fan control relay or fan control module
  • Faulty PCM or damaged low-side driver
  • Blown fuse or poor battery/ground connection

Symptoms

  • Cooling fan does not run on low speed or does not run at all
  • Fan may run only on high speed (if high-speed circuit still works)
  • Engine temperature rise in traffic or at idle
  • Reduced air conditioning performance
  • Check Engine Light (MIL) illuminated with stored code

What to check

  • Perform a visual inspection of fan, wiring, connectors, fuses, and relays for damage or corrosion
  • Scan for additional codes and freeze frame data
  • Attempt to command fan low speed on with a scan tool and observe behavior
  • Back-probe fan control connector and measure voltage and ground while commanding fan
  • Measure continuity and resistance of fan motor low-speed winding (compare to spec)
  • Check for voltage at relay coil and supply, and verify relay operation

Signal parameters

  • Control output type: usually PCM low-side (ground) switching or fan module command
  • Expected voltage at control pin when commanded ON: near 0 V (ground) for low-side switch
  • Expected voltage at control pin when OFF: approximately battery voltage (open/high-Z) or per vehicle design
  • Fan motor current: draws several amps when running; exact value varies by model (compare to service manual)
  • Resistance of low-speed winding: should be within manufacturer specification; open or very high resistance indicates failure

Diagnostic algorithm

  1. Safety: Park vehicle, set parking brake, allow engine to cool, disconnect battery if required by service manual.
  2. Retrieve freeze frame and related codes with a scan tool. Note fan operation requests and engine temp.
  3. Visually inspect fan assembly, wiring harness, connectors, fuses and relays for damage, corrosion, or water intrusion.
  4. With key on (engine off) and using a scan tool, command the low-speed fan ON. Observe whether the fan runs and listen for motor.
  5. If fan does not run, back-probe the fan control connector. Command fan ON and measure voltage between control pin and battery positive/ground. Verify control behaves as expected (switches to ground or as specified).
  6. Check supply voltage at fan motor power feed and continuity to battery/fuse/relay. Verify relay coil and contacts operate when commanded.
  7. With power applied directly (fused jumper) to the fan low-speed terminal, verify motor runs. If motor does not run when directly powered, replace fan motor.
  8. If motor runs when directly powered but control circuit does not command correctly, test wiring from fan to PCM for shorts/opens and measure resistance. Repair any damaged wiring/connectors.
  9. If wiring and fan test good, test or replace the fan relay or fan control module per service manual. If low-side driver at PCM is suspected, perform PCM driver tests per factory procedures; replace PCM only after ruling out wiring, relay, and fan.
  10. After repairs, clear codes, retest fan operation under conditions that previously generated the code, and confirm no recurrence.

Likely causes

  • Damaged or disconnected wiring/connectors at the fan
  • Failed cooling fan motor or low-speed coil
  • Faulty fan relay or control module
  • Poor ground or blown fuse

Fault status

⚠️ Status
P1474 - Low Fan Control Primary Circuit: PCM detected an open, short, or abnormal voltage/current condition in the low-speed cooling fan control circuit.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hrs

Similar codes

P0480 P0481 P0482 P0483
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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Keep it short and practical. Up to 500 characters.
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Code

P1474

Other P — Powertrain

Low Fan Control Primary Circuit Malfunction

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

Causes

  • Open or short in cooling fan low-speed control wiring
  • Corroded, loose, or damaged connector at fan, relay, or PCM
  • Failed cooling fan motor (low-speed winding)
  • Faulty fan control relay or fan control module
  • Faulty PCM or damaged low-side driver
  • Blown fuse or poor battery/ground connection

Symptoms

  • Cooling fan does not run on low speed or does not run at all
  • Fan may run only on high speed (if high-speed circuit still works)
  • Engine temperature rise in traffic or at idle
  • Reduced air conditioning performance
  • Check Engine Light (MIL) illuminated with stored code

What to check

  • Perform a visual inspection of fan, wiring, connectors, fuses, and relays for damage or corrosion
  • Scan for additional codes and freeze frame data
  • Attempt to command fan low speed on with a scan tool and observe behavior
  • Back-probe fan control connector and measure voltage and ground while commanding fan
  • Measure continuity and resistance of fan motor low-speed winding (compare to spec)
  • Check for voltage at relay coil and supply, and verify relay operation

Signal parameters

  • Control output type: usually PCM low-side (ground) switching or fan module command
  • Expected voltage at control pin when commanded ON: near 0 V (ground) for low-side switch
  • Expected voltage at control pin when OFF: approximately battery voltage (open/high-Z) or per vehicle design
  • Fan motor current: draws several amps when running; exact value varies by model (compare to service manual)
  • Resistance of low-speed winding: should be within manufacturer specification; open or very high resistance indicates failure

Diagnostic algorithm

  1. Safety: Park vehicle, set parking brake, allow engine to cool, disconnect battery if required by service manual.
  2. Retrieve freeze frame and related codes with a scan tool. Note fan operation requests and engine temp.
  3. Visually inspect fan assembly, wiring harness, connectors, fuses and relays for damage, corrosion, or water intrusion.
  4. With key on (engine off) and using a scan tool, command the low-speed fan ON. Observe whether the fan runs and listen for motor.
  5. If fan does not run, back-probe the fan control connector. Command fan ON and measure voltage between control pin and battery positive/ground. Verify control behaves as expected (switches to ground or as specified).
  6. Check supply voltage at fan motor power feed and continuity to battery/fuse/relay. Verify relay coil and contacts operate when commanded.
  7. With power applied directly (fused jumper) to the fan low-speed terminal, verify motor runs. If motor does not run when directly powered, replace fan motor.
  8. If motor runs when directly powered but control circuit does not command correctly, test wiring from fan to PCM for shorts/opens and measure resistance. Repair any damaged wiring/connectors.
  9. If wiring and fan test good, test or replace the fan relay or fan control module per service manual. If low-side driver at PCM is suspected, perform PCM driver tests per factory procedures; replace PCM only after ruling out wiring, relay, and fan.
  10. After repairs, clear codes, retest fan operation under conditions that previously generated the code, and confirm no recurrence.

Likely causes

  • Damaged or disconnected wiring/connectors at the fan
  • Failed cooling fan motor or low-speed coil
  • Faulty fan relay or control module
  • Poor ground or blown fuse

Fault status

⚠️ Status
P1474 - Low Fan Control Primary Circuit: PCM detected an open, short, or abnormal voltage/current condition in the low-speed cooling fan control circuit.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hrs

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Code

P1474

RAM P — Powertrain

Leak Detect Pump Solenoid Circuit Open

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

Causes

  • Open or short in cooling fan low-speed control wiring
  • Corroded, loose, or damaged connector at fan, relay, or PCM
  • Failed cooling fan motor (low-speed winding)
  • Faulty fan control relay or fan control module
  • Faulty PCM or damaged low-side driver
  • Blown fuse or poor battery/ground connection

Symptoms

  • Cooling fan does not run on low speed or does not run at all
  • Fan may run only on high speed (if high-speed circuit still works)
  • Engine temperature rise in traffic or at idle
  • Reduced air conditioning performance
  • Check Engine Light (MIL) illuminated with stored code

What to check

  • Perform a visual inspection of fan, wiring, connectors, fuses, and relays for damage or corrosion
  • Scan for additional codes and freeze frame data
  • Attempt to command fan low speed on with a scan tool and observe behavior
  • Back-probe fan control connector and measure voltage and ground while commanding fan
  • Measure continuity and resistance of fan motor low-speed winding (compare to spec)
  • Check for voltage at relay coil and supply, and verify relay operation

Signal parameters

  • Control output type: usually PCM low-side (ground) switching or fan module command
  • Expected voltage at control pin when commanded ON: near 0 V (ground) for low-side switch
  • Expected voltage at control pin when OFF: approximately battery voltage (open/high-Z) or per vehicle design
  • Fan motor current: draws several amps when running; exact value varies by model (compare to service manual)
  • Resistance of low-speed winding: should be within manufacturer specification; open or very high resistance indicates failure

Diagnostic algorithm

  1. Safety: Park vehicle, set parking brake, allow engine to cool, disconnect battery if required by service manual.
  2. Retrieve freeze frame and related codes with a scan tool. Note fan operation requests and engine temp.
  3. Visually inspect fan assembly, wiring harness, connectors, fuses and relays for damage, corrosion, or water intrusion.
  4. With key on (engine off) and using a scan tool, command the low-speed fan ON. Observe whether the fan runs and listen for motor.
  5. If fan does not run, back-probe the fan control connector. Command fan ON and measure voltage between control pin and battery positive/ground. Verify control behaves as expected (switches to ground or as specified).
  6. Check supply voltage at fan motor power feed and continuity to battery/fuse/relay. Verify relay coil and contacts operate when commanded.
  7. With power applied directly (fused jumper) to the fan low-speed terminal, verify motor runs. If motor does not run when directly powered, replace fan motor.
  8. If motor runs when directly powered but control circuit does not command correctly, test wiring from fan to PCM for shorts/opens and measure resistance. Repair any damaged wiring/connectors.
  9. If wiring and fan test good, test or replace the fan relay or fan control module per service manual. If low-side driver at PCM is suspected, perform PCM driver tests per factory procedures; replace PCM only after ruling out wiring, relay, and fan.
  10. After repairs, clear codes, retest fan operation under conditions that previously generated the code, and confirm no recurrence.

Likely causes

  • Damaged or disconnected wiring/connectors at the fan
  • Failed cooling fan motor or low-speed coil
  • Faulty fan relay or control module
  • Poor ground or blown fuse

Fault status

⚠️ Status
P1474 - Low Fan Control Primary Circuit: PCM detected an open, short, or abnormal voltage/current condition in the low-speed cooling fan control circuit.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hrs

Similar codes

P0480 P0481 P0482 P0483
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