B1532 – Memory 1 Switch Circuit Open

The ODBII code B1532 indicates that there is an open circuit in the memory switch circuit for a specific component, typically related to the vehicle’s power window or door lock system.

The severity of ODBII code B1532 is moderate.

Common Causes For: B1531 Memory 1 Switch Circuit Failure

• Faulty switch
• Damaged wiring or connectors
• Poor ground connection
• Open circuit in the switch circuit
• Corroded terminals
• Faulty body control module (BCM)

Common misdiagnosis for B1532 Memory 1 Switch Circuit Open

• Faulty body control module (BCM)
• Defective switch or button
• Wiring issues or shorts in the harness
• Poor ground connections
• Incorrectly diagnosed window motor or regulator issues
• Misinterpretation of related codes or symptoms
• Faulty connectors or terminals
• Issues with the power supply to the switch or module

Common Troubleshooting Steps

The OBD-II code B1532 indicates a problem with the memory switch circuit, specifically that there is an open circuit in the switch that controls certain functions, often related to the vehicle’s body control module (BCM) or other electronic systems. Here are some common troubleshooting steps to diagnose and resolve this issue:

• Check the Vehicle’s Manual: Refer to the vehicle’s service manual for specific information about the B1532 code, including the location of the memory switch and related components.
• Visual Inspection: Inspect the wiring and connectors associated with the memory switch circuit for any signs of damage, corrosion, or loose connections.
• Look for frayed wires, broken connectors, or any other physical damage.
• Test the Memory Switch: Use a multimeter to test the memory switch for continuity. If the switch is open or not functioning properly, it may need to be replaced.
• Check the switch’s operation by manually activating it and observing if it sends a signal.
• Check for Short Circuits: Inspect the circuit for any short circuits that may be causing the open circuit condition. This can include checking for shorts to ground or power.
• Inspect the Body Control Module (BCM): The BCM may be responsible for processing the signals from the memory switch. Check for any fault codes related to the BCM and ensure it is functioning correctly.
• If necessary, reprogram or replace the BCM.
• Check Fuses: Inspect the fuses related to the memory switch circuit. A blown fuse can cause an open circuit condition.
• Scan for Additional Codes: Use an OBD-II scanner to check for any additional trouble codes that may provide more context or indicate related issues.
• Perform a Wiring Diagram Check: Refer to the wiring diagram for the memory switch circuit to trace the circuit and identify any potential issues along the path.
• Clear Codes and Test Drive: After performing repairs, clear the trouble codes using an OBD-II scanner and take the vehicle for a test drive to see if the code returns.
• Consult a Professional: If the issue persists after performing these steps, it may be best to consult a professional mechanic or technician who has experience with your specific vehicle make and model. By following these troubleshooting steps, you should be able to identify and resolve the issue related to the B1532 code.