WOMS
B code body Medium severity

B1537 Memory 2 Switch Circuit Short To Battery

The OBD2 code B1537 indicates a fault in the memory 2 switch circuit, specifically that it is shorted to battery, which means there is an electrical short causing the circuit to receive constant power

Definition

The OBD2 code B1537 indicates a fault in the memory 2 switch circuit, specifically that it is shorted to battery, which means there is an electrical short causing the circuit to receive constant power

Common causes

  • Shorted wiring or connectors
  • Faulty switch
  • Damaged control module
  • Corroded terminals
  • Improper installation of aftermarket accessories
  • Grounding issues
  • Water intrusion or moisture damage

Common misdiagnoses

  • Faulty body control module (BCM)
  • Defective switch assembly
  • Wiring harness issues
  • Shorted or damaged wiring
  • Faulty relay
  • Incorrectly installed aftermarket accessories
  • Grounding issues
  • Corroded connectors

Troubleshooting steps

  1. 1. Check the Vehicle's Battery and Charging System

    Ensure the battery is in good condition and fully charged

  2. 2. Check the alternator and charging system for proper operation

  3. 3. Inspect Wiring and Connectors

    Visually inspect the wiring harness and connectors associated with the Memory 2 switch circuit

  4. 4. Look for signs of damage, such as frayed wires, corrosion, or loose connections

  5. 5. Pay special attention to areas where the wiring may be exposed to heat or abrasion

  6. 6. Test the Memory 2 Switch

    If applicable, test the Memory 2 switch for proper operation

  7. 7. Use a multimeter to check for continuity and proper voltage at the switch

  8. 8. Replace the switch if it is found to be faulty

  9. 9. Check for Short Circuits

    Use a multimeter to check for continuity between the Memory 2 switch circuit and the battery

  10. 10. If a short is detected, trace the wiring to locate the source of the short

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

    Check the BCM for any signs of damage or malfunction

  12. 12. Ensure that the BCM is receiving proper power and ground

  13. 13. If necessary, reprogram or replace the BCM

  14. 14. Clear the Code and Test Drive

    After performing repairs, clear the OBD-II codes using a scan tool

  15. 15. Take the vehicle for a test drive to see if the code returns

  16. 16. Consult Technical Service Bulletins (TSBs)

    Check for any TSBs related to the B1537 code for your specific vehicle make and model

  17. 17. Follow any recommended procedures or fixes outlined in the TSBs

  18. 18. Seek Professional Help

    If the issue persists after performing the above steps, consider seeking help from a qualified mechanic or automotive technician

  19. 19. They may have access to specialized diagnostic tools and equipment to further diagnose the problem.Conclusion Troubleshooting OBD-II code B1537 involves a systematic approach to checking the battery, wiring, switches, and control modules. By following these steps, you can identify and resolve the underlying issue causing the code