WOMS
B code body Medium severity

B2164 Seat Rear Vertical Motor Memory Position Out of Range

The OBD2 code B2164 indicates that the rear vertical motor for the seat's memory position is not operating within its expected range, suggesting a malfunction or misalignment in the seat adjustment system

Definition

The OBD2 code B2164 indicates that the rear vertical motor for the seat's memory position is not operating within its expected range, suggesting a malfunction or misalignment in the seat adjustment system

Common causes

  • Faulty rear vertical motor
  • Malfunctioning seat position sensor
  • Wiring issues or damaged connectors
  • Faulty seat control module
  • Calibration error in the seat memory system
  • Low battery voltage or electrical issues
  • Software glitches in the vehicle's control system

Common misdiagnoses

  • Faulty seat motor
  • Wiring issues or shorts
  • Malfunctioning seat position sensor
  • Body control module (BCM) failure
  • Incorrectly calibrated seat memory system
  • Software glitches in the vehicle's control module
  • Issues with the power supply to the seat motor

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 Seat Motor

  3. 3. Check the rear vertical motor for any visible damage or signs of wear

  4. 4. Ensure that the motor is securely mounted and that there are no obstructions preventing it from moving

  5. 5. Test the Motor Functionality

  6. 6. Manually operate the seat adjustment switch to see if the motor responds. If it does not move, the motor may be faulty

  7. 7. If possible, apply direct power to the motor to see if it operates outside of the vehicle's control system

  8. 8. Check Wiring and Connectors

  9. 9. Inspect the wiring harness and connectors leading to the seat motor for any signs of damage, corrosion, or loose connections

  10. 10. Repair or replace any damaged wiring or connectors

  11. 11. Examine the Seat Position Sensors

  12. 12. Some vehicles have position sensors that monitor the seat's position. Check these sensors for proper operation and ensure they are correctly calibrated

  13. 13. If the sensors are faulty, they may need to be replaced

  14. 14. Reset the Seat Memory System

  15. 15. If the vehicle has a memory seat function, try resetting the memory settings. This can sometimes resolve issues related to position out of range

  16. 16. Refer to the vehicle's owner manual for specific instructions on how to reset the memory settings

  17. 17. Check the Control Module

  18. 18. The seat control module may be malfunctioning. Inspect the module for any signs of damage or failure

  19. 19. If necessary, reprogram or replace the control module according to the manufacturer's specifications

  20. 20. Inspect the Seat Tracks

  21. 21. Ensure that the seat tracks are clean and free of debris. Obstructions can prevent the seat from moving to the correct position

  22. 22. Lubricate the tracks if necessary

  23. 23. Consult Technical Service Bulletins (TSBs)

  24. 24. Check for any TSBs related to the seat adjustment system for your specific vehicle make and model. Manufacturers may have issued updates or fixes for known issues

  25. 25. Professional Diagnosis

  26. 26. If the issue persists after performing the above steps, consider seeking assistance from a professional mechanic or dealership. They may have specialized diagnostic tools and knowledge to address the problem effectively. By following these troubleshooting steps, you should be able to identify and potentially resolve the issue related to the B2164 code