WOMS
B code body Medium severity

B1635 Mirror Driver Right Circuit Failure

The OBD2 code B1635 indicates a malfunction in the right mirror driver's circuit, typically related to issues with the mirror's electrical components or connections

Definition

The OBD2 code B1635 indicates a malfunction in the right mirror driver's circuit, typically related to issues with the mirror's electrical components or connections

Common causes

  • Faulty right mirror assembly
  • Damaged wiring or connectors
  • Short circuit in the mirror circuit
  • Corroded terminals
  • Failed mirror motor
  • Malfunctioning control module
  • Poor ground connection
  • Blown fuse related to the mirror system

Common misdiagnoses

  • Faulty right side mirror assembly
  • Wiring harness issues
  • Malfunctioning body control module (BCM)
  • Defective mirror switch
  • Short circuit in the mirror circuit
  • Corroded connectors or terminals
  • Software or calibration errors in the vehicle's system

Troubleshooting steps

  1. 1. Check for Additional Codes

    Use an OBD-II scanner to check for any other related trouble codes. This can provide more context and help identify if there are multiple issues

  2. 2. Inspect the Right Side Mirror

    Physically inspect the right side mirror for any visible damage, such as broken glass, loose connections, or damaged wiring

  3. 3. Check Wiring and Connectors

    Examine the wiring harness and connectors leading to the right side mirror. Look for frayed wires, corrosion, or loose connections that could cause a poor electrical connection

  4. 4. Test the Mirror Functionality

    If the vehicle has power-adjustable mirrors, test the functionality of the right side mirror. Check if it can be adjusted using the control switch. If it does not respond, the issue may be with the mirror motor or switch

  5. 5. Inspect the Mirror Switch

    Test the mirror control switch to ensure it is functioning correctly. A faulty switch can prevent the mirror from operating and trigger the B1635 code

  6. 6. Check for Ground Issues

    Ensure that the ground connection for the right side mirror is secure and free of corrosion. A poor ground can lead to electrical issues

  7. 7. Test the Mirror Motor

    If the mirror is not functioning, you may need to test the mirror motor itself. This can often be done by applying direct power to the motor to see if it operates

  8. 8. Look for Short Circuits

    Use a multimeter to check for short circuits in the wiring. A short can cause the circuit to fail and trigger the code

  9. 9. Inspect the Body Control Module (BCM)

    In some cases, the issue may lie with the BCM, which controls various electrical functions in the vehicle. Check for any faults or updates related to the BCM

  10. 10. Clear the Code and Test Drive

    After performing the necessary repairs, clear the trouble code using the OBD-II scanner and take the vehicle for a test drive to see if the code returns. 1

  11. 11. Consult a Professional

    If the issue persists after performing these steps, it may be best to consult a professional mechanic or technician who has experience with automotive electrical systems. By following these troubleshooting steps, you should be able to identify and resolve the issue related to the B1635 code