B1533 – Memory 1 Switch Circuit Short To Battery

The ODBII code B1533 indicates a fault in the memory 1 switch circuit, specifically that it is shorted to battery voltage, which may affect the operation of features like power seats or memory settings.

The severity of ODBII code B1533 is moderate.

Common Causes For: B1532 Memory 1 Switch Circuit Open

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

Common misdiagnosis for B1533 Memory 1 Switch Circuit Short To Battery

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

Common Troubleshooting Steps

The OBD-II code B1533 indicates a problem with the memory 1 switch circuit, specifically a short to battery. This code is often related to the vehicle’s memory seat or power seat functions. Here are some common troubleshooting steps to diagnose and resolve the issue:

• Check the Vehicle’s Battery and Charging System: Ensure the battery is in good condition and fully charged.
• Inspect the alternator and charging system for proper operation.
• Inspect Wiring and Connectors: Visually inspect the wiring harness and connectors associated with the memory seat switch.
• Look for signs of damage, corrosion, or loose connections.
• Pay special attention to areas where the wiring may be exposed to heat or abrasion.
• Test the Memory Seat Switch: Remove the memory seat switch and test it for proper operation.
• Use a multimeter to check for continuity and proper voltage at the switch terminals.
• If the switch is faulty, replace it.
• Check for Short Circuits: Use a multimeter to check for shorts in the wiring harness.
• Disconnect the memory seat module and check the resistance between the switch circuit and ground.
• If you find a short, trace the wiring to locate the source of the short.
• Inspect the Memory Seat Module: If the wiring and switch are in good condition, the issue may lie within the memory seat module itself.
• Check for any fault codes related to the memory seat module.
• If necessary, replace the module.
• Clear the Codes 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 reappears.
• Consult the Service Manual: Refer to the vehicle’s service manual for specific wiring diagrams and troubleshooting procedures related to the memory seat system.
• Seek Professional Help: If you are unable to resolve the issue, consider seeking assistance from a qualified mechanic or automotive technician. By following these steps, you should be able to diagnose and potentially fix the issue related to the B1533 code. Always ensure safety precautions are taken when working on electrical systems in vehicles.