WOMS
B code body Medium severity

B1668 Mirror Driver Right/Left Motor Stalled

The OBD2 code B1668 indicates that the right or left mirror motor has stalled, meaning the motor responsible for adjusting the side mirror is not functioning properly or is unable to move

Definition

The OBD2 code B1668 indicates that the right or left mirror motor has stalled, meaning the motor responsible for adjusting the side mirror is not functioning properly or is unable to move

Common causes

  • Faulty mirror motor
  • Electrical connection issues
  • Wiring harness damage
  • Obstructed mirror movement
  • Failed mirror switch
  • Short circuit in the mirror circuit
  • Software or calibration issues

Common misdiagnoses

  • Faulty mirror switch
  • Wiring issues
  • Defective mirror motor
  • Malfunctioning body control module (BCM)
  • Poor ground connection
  • Software glitches in the vehicle's computer system
  • Incorrectly installed or damaged mirror assembly

Troubleshooting steps

  1. 1. Visual Inspection

    Check the Mirrors: Inspect the mirrors for any physical damage or obstructions that may prevent movement

  2. 2. Wiring and Connectors

    Look for damaged wires, loose connections, or corrosion in the wiring harness leading to the mirror motors

  3. 3. Check the Power Supply

    Fuses: Check the fuse related to the power mirrors. A blown fuse can prevent the motors from receiving power

  4. 4. Voltage Test

    Use a multimeter to check for voltage at the mirror connector when the mirror adjustment switch is activated

  5. 5. Test the Mirror Switch

    Functionality: Ensure that the mirror adjustment switch is functioning properly. A faulty switch can prevent the motors from receiving the signal to move

  6. 6. Bypass Test

    If possible, bypass the switch to directly apply power to the mirror motors to see if they respond

  7. 7. Motor Functionality

    Direct Power Test: If the wiring and switch are good, apply direct power to the mirror motor to see if it operates. If it does not move, the motor may be faulty and need replacement

  8. 8. Resistance Check

    Measure the resistance of the motor. If it shows an open circuit or very low resistance, the motor may be defective

  9. 9. Check for Obstructions

    Physical Blockage: Ensure there are no obstructions preventing the mirror from moving. Sometimes debris or ice can cause the motor to stall

  10. 10. Scan for Additional Codes

    Check for Other Codes: Use an OBD-II scanner to check for any additional trouble codes that may provide more context or indicate related issues

  11. 11. Reset the System

    Clear Codes: After performing repairs or adjustments, clear the trouble codes and see if the code returns after testing the mirrors again

  12. 12. Consult the Service Manual

    Specific Procedures: Refer to the vehicle’s service manual for specific troubleshooting procedures and specifications related to the mirror system

  13. 13. Professional Help

    Seek Assistance: If the issue persists after performing these steps, consider consulting a professional mechanic or an automotive electrician for further diagnosis. By following these steps, you should be able to identify the cause of the B1668 code and take appropriate action to resolve the issue