B1535 – OBD-II DTC

OBD-II DTC B1535 – Memory 2 Switch Circuit Failure

DTC B1535 meaning

DTC B1535 refers to a fault in the Memory 2 Switch Circuit. This code indicates that the vehicle’s onboard diagnostic system has detected a malfunction in the circuit responsible for the Memory 2 switch, which is often related to power seat adjustments or other memory settings in the vehicle. The Memory 2 switch is typically used to recall specific settings for the driver’s seat, mirrors, and other adjustable features.

DTC B1535 symptoms

Common symptoms associated with DTC B1535 may include:

• Inability to adjust the driver’s seat to the Memory 2 position.
• Memory settings not being saved or recalled properly.
• Warning lights illuminated on the dashboard.
• Intermittent or complete failure of the Memory 2 switch functionality.

DTC B1535 causes

Several factors can lead to the occurrence of DTC B1535, including:

• Faulty Memory 2 switch.
• Wiring issues, such as shorts or open circuits in the switch circuit.
• Corroded or loose connectors related to the Memory 2 switch.
• Malfunctioning power seat module or control unit.
• Software issues within the vehicle’s onboard computer.

DTC B1535 seriousness

The seriousness of DTC B1535 can vary depending on the vehicle’s features and the driver’s reliance on memory settings. While it may not affect the vehicle’s overall drivability, it can lead to inconvenience and discomfort for the driver. If left unaddressed, it may indicate underlying electrical issues that could affect other systems in the vehicle.

How to diagnose DTC B1535

To diagnose DTC B1535, follow these steps:

1. Use an OBD-II scanner to confirm the presence of DTC B1535.
2. Inspect the Memory 2 switch for physical damage or wear.
3. Check the wiring and connectors associated with the Memory 2 switch for corrosion or loose connections.
4. Test the Memory 2 switch using a multimeter to ensure it is functioning correctly.
5. Examine the power seat module for any fault codes or issues.
6. Clear the DTC and perform a test drive to see if the code returns.

How to fix DTC B1535 step-by-step instructions

To fix DTC B1535, follow these steps:

1. Disconnect the vehicle’s battery to ensure safety while working on electrical components.
2. Inspect and repair any damaged wiring or connectors related to the Memory 2 switch.
3. If the Memory 2 switch is faulty, replace it with a new one.
4. Reconnect the battery and clear the DTC using an OBD-II scanner.
5. Test the Memory 2 switch functionality to ensure it operates correctly.
6. Perform a test drive to confirm that the DTC does not return.

How to erase DTC B1535

To erase DTC B1535, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the vehicle’s ignition without starting the engine.
3. Access the diagnostic menu on the scanner and locate the option to clear or erase trouble codes.
4. Select DTC B1535 and confirm the erasure.
5. Disconnect the scanner and start the vehicle to ensure the code does not reappear.

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