B1537 – Memory 2 Switch Circuit Short To Battery

The ODBII 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.

The severity of ODBII code B1537 is moderate.

Common Causes For: B1536 Memory 2 Switch Circuit Open

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

Common misdiagnosis for B1537 Memory 2 Switch Circuit Short To Battery

• 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

Common Troubleshooting Steps

The OBD-II code B1537 indicates a problem with the “Memory 2 Switch Circuit,” specifically a short to battery. This code is often related to the vehicle’s body control module (BCM) or other electronic control units that manage various functions in the vehicle. Here are some common troubleshooting steps to diagnose and resolve this issue:

• Check the Vehicle’s Battery and Charging System: Ensure the battery is in good condition and fully charged.
• Check the alternator and charging system for proper operation.
• Inspect Wiring and Connectors: Visually inspect the wiring harness and connectors associated with the Memory 2 switch circuit.
• Look for signs of damage, such as frayed wires, corrosion, or loose connections.
• Pay special attention to areas where the wiring may be exposed to heat or abrasion.
• Test the Memory 2 Switch: If applicable, test the Memory 2 switch for proper operation.
• Use a multimeter to check for continuity and proper voltage at the switch.
• Replace the switch if it is found to be faulty.
• Check for Short Circuits: Use a multimeter to check for continuity between the Memory 2 switch circuit and the battery.
• If a short is detected, trace the wiring to locate the source of the short.
• Inspect the Body Control Module (BCM): Check the BCM for any signs of damage or malfunction.
• Ensure that the BCM is receiving proper power and ground.
• If necessary, reprogram or replace the BCM.
• Clear the Code and Test Drive: After performing repairs, clear the OBD-II codes using a scan tool.
• Take the vehicle for a test drive to see if the code returns.
• Consult Technical Service Bulletins (TSBs): Check for any TSBs related to the B1537 code for your specific vehicle make and model.
• Follow any recommended procedures or fixes outlined in the TSBs.
• Seek Professional Help: If the issue persists after performing the above steps, consider seeking help from a qualified mechanic or automotive technician.
• 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.