B1528 – Memory Set Switch Circuit Open

The ODBII code B1528 indicates that there is an open circuit in the memory set switch, which is responsible for storing and recalling seat or mirror positions in a vehicle.

The severity of ODBII code B1528 is generally considered moderate.

Common Causes For: B1527 Memory Set Switch Circuit Failure

• Faulty memory seat switch
• Open circuit in the wiring harness
• Poor connection or corroded terminals
• Faulty body control module (BCM)
• Damaged or frayed wiring
• Malfunctioning seat position sensor

Common misdiagnosis for B1528 Memory Set Switch Circuit Open

• Faulty memory seat switch
• Wiring issues or shorts in the circuit
• Defective memory seat module
• Malfunctioning body control module (BCM)
• Incorrectly programmed or calibrated memory settings
• Issues with the power supply to the memory seat system
• Faulty connectors or terminals in the circuit

Common Troubleshooting Steps

The OBD-II code B1528 refers to a “Memory Set Switch Circuit Open” issue, which typically relates to the vehicle’s memory seat function. This code indicates that the circuit responsible for the memory seat switch is open or has a fault. Here are some common troubleshooting steps to diagnose and potentially resolve this issue:

• Check the Vehicle’s Manual: Refer to the vehicle’s service manual for specific information regarding the memory seat system and wiring diagrams.
• Visual Inspection:
• Inspect the memory seat switch for any visible damage or wear.
• Check the wiring harness and connectors associated with the memory seat switch for signs of damage, corrosion, or loose connections.
• Test the Memory Seat Switch:
• Use a multimeter to test the continuity of the memory seat switch. If the switch is faulty, it may need to be replaced.
• Inspect the Wiring:
• Follow the wiring from the memory seat switch to the control module. Look for any breaks, shorts, or frayed wires that could cause an open circuit.
• Check the Control Module:
• If the switch and wiring are in good condition, the issue may lie within the control module itself. Check for any fault codes related to the control module and consider reprogramming or replacing it if necessary.
• 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.
• Clear the Codes:
• After performing any 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 the above steps, it may be best to consult a professional mechanic or technician who has experience with the specific make and model of your vehicle. By following these steps, you should be able to identify and resolve the issue related to the B1528 code.