B1534 – Memory 1 Switch Circuit Short To Ground

The ODBII code B1534 indicates a fault in the memory 1 switch circuit, specifically that there is a short to ground, which means the circuit is unintentionally connected to the ground, causing improper function of the switch.

The severity of ODBII code B1534 is moderate.

Common Causes For: B1533 Memory 1 Switch Circuit Short To Battery

• Damaged wiring or connectors
• Faulty switch
• Shorted circuit
• Corroded connections
• Faulty control module
• Grounding issues

Common misdiagnosis for B1534 Memory 1 Switch Circuit Short To Ground

• Faulty window switch
• Wiring harness issues
• Body control module (BCM) failure
• Shorted or damaged wiring
• Faulty power window motor
• Incorrectly installed or damaged connectors
• Malfunctioning door lock switch

Common Troubleshooting Steps

The OBD-II code B1534 indicates a problem with the memory switch circuit, specifically a short to ground condition. This code is often related to the vehicle’s body control module (BCM) and can affect various systems, including power windows, door locks, and other electronic features. Here are some common troubleshooting steps to diagnose and resolve the issue:

• Check for Additional Codes: Use an OBD-II scanner to check for any other trouble codes that may be present. This can provide more context and help identify related issues.
• Inspect Wiring and Connectors: Visually inspect the wiring and connectors associated with the memory switch circuit. Look for signs of damage, fraying, corrosion, or loose connections.
• Pay special attention to areas where the wiring may be exposed to heat or moisture.
• Test the Memory Switch: If applicable, test the memory switch itself for proper operation. Use a multimeter to check for continuity and ensure that the switch is functioning correctly.
• If the switch is faulty, replace it.
• Check for Short Circuits: Use a multimeter to check for continuity between the memory switch circuit and ground. A short to ground will show continuity where it shouldn’t exist.
• If a short is found, trace the wiring back to locate the source of the short. This could be due to damaged insulation or a pinched wire.
• Inspect the Body Control Module (BCM): If the wiring and switch are in good condition, the issue may lie within the BCM itself. Check for any signs of damage or corrosion on the module.
• If necessary, test the BCM for proper operation. This may require specialized diagnostic equipment.
• Check for Ground Issues: Ensure that all ground connections related to the memory switch circuit are secure and free of corrosion. Poor ground connections can lead to erratic behavior and false codes.
• Clear Codes and Test Drive: After performing repairs, clear the trouble codes using the OBD-II scanner and take the vehicle for a test drive to see if the code returns.
• Consult Service Manual: Refer to the vehicle’s service manual for specific wiring diagrams and troubleshooting procedures related to the memory switch circuit. This can provide additional insights and steps tailored to your vehicle.
• Seek Professional Help: If the issue persists after performing these steps, consider seeking assistance from a professional mechanic or automotive technician who has experience with electrical systems and OBD-II diagnostics. By following these troubleshooting steps, you should be able to identify and resolve the issue related to the B1534 code.