WOMS
P code powertrain Medium severity

P1471 Electrodrive Fan 1 Operational Failure (Driver Side)

The OBD2 code P1471 indicates a malfunction in the electrodrive fan on the driver side, suggesting that the fan is not operating as intended

Definition

The OBD2 code P1471 indicates a malfunction in the electrodrive fan on the driver side, suggesting that the fan is not operating as intended

Common causes

  • Faulty electrodrive fan motor
  • Damaged wiring or connectors
  • Failed fan relay
  • Blown fuse
  • Faulty temperature sensor
  • Malfunctioning engine control module (ECM)
  • Obstruction in the fan assembly
  • Poor ground connection

Common misdiagnoses

  • Faulty cooling fan relay
  • Bad temperature sensor
  • Wiring issues or shorts
  • Malfunctioning engine control module (ECM)
  • Incorrectly installed or damaged cooling fan
  • Low coolant levels
  • Blocked or restricted airflow
  • Faulty thermostat

Troubleshooting steps

  1. 1. Check the Code and Freeze Frame Data

    Use an OBD-II scanner to confirm the P1471 code and check for any additional codes that may provide more context

  2. 2. Review freeze frame data to understand the conditions under which the code was set

  3. 3. Visual Inspection

    Inspect the wiring and connectors associated with the electrodrive fan. Look for signs of damage, corrosion, or loose connections

  4. 4. Check the fan itself for physical damage or obstructions that could prevent it from operating

  5. 5. Test the Fan Operation

    Manually activate the fan using a direct power source to see if it operates. If it does not work, the fan may be faulty and needs replacement

  6. 6. If the fan operates normally when powered directly, the issue may lie in the control circuit

  7. 7. Check the Fuses and Relays

    Inspect the fuses related to the cooling fan circuit. Replace any blown fuses

  8. 8. Test the relay for the electrodrive fan. Swap it with a similar relay (if available) to see if the fan operates

  9. 9. Inspect the Control Module

    Check the Engine Control Module (ECM) or Powertrain Control Module (PCM) for any issues. Ensure that it is functioning correctly and that there are no software issues

  10. 10. Look for any updates or recalls related to the ECM/PCM that may address known issues

  11. 11. Check for Ground Issues

    Ensure that the fan has a good ground connection. A poor ground can prevent the fan from operating correctly

  12. 12. Use a multimeter to test the ground circuit for continuity

  13. 13. Test the Temperature Sensor

    The fan operation is often controlled by the engine temperature sensor. Test the sensor for proper operation and replace it if it is faulty

  14. 14. Inspect the Wiring Harness

    Check the wiring harness for any signs of wear, fraying, or short circuits. Repair or replace any damaged wiring

  15. 15. Clear Codes and Test Drive

    After performing repairs, clear the codes and take the vehicle for a test drive to see if the P1471 code returns

  16. 16. Consult Technical Service Bulletins (TSBs)

    Look for any TSBs related to the P1471 code for your specific vehicle make and model. Manufacturers may have issued guidance on common issues and fixes.1

  17. 17. Seek Professional Help

    If the issue persists after performing these steps, consider consulting a professional mechanic or technician who has experience with your vehicle's make and model. By following these troubleshooting steps, you should be able to identify the cause of the P1471 code and take appropriate action to resolve the issue