B1381 – OBD-II DTC

OBD-II DTC B1381 – Oil Change Reset Button Circuit Open

DTC B1381 meaning

DTC B1381 refers to a diagnostic trouble code indicating an issue with the Oil Change Reset Button Circuit. Specifically, it signifies that there is an open circuit in the system responsible for the oil change reset function. This code is often associated with the vehicle’s maintenance reminder system, which alerts the driver when an oil change is due.

DTC B1381 symptoms

Common symptoms associated with DTC B1381 may include:

• The oil change reminder light remains illuminated.
• Inability to reset the oil change indicator.
• Potentially incorrect oil change interval notifications.
• Other warning lights may appear on the dashboard.

DTC B1381 causes

Several factors can lead to the triggering of DTC B1381, including:

• A faulty oil change reset button.
• Wiring issues, such as damaged or corroded wires.
• Connector problems, including loose or corroded connections.
• Faulty engine control module (ECM) or body control module (BCM).

DTC B1381 seriousness

The seriousness of DTC B1381 can vary. While it may not directly affect vehicle performance, it can lead to:

• Inaccurate maintenance reminders, potentially resulting in engine damage.
• Driver confusion due to persistent warning lights.
• Complications during vehicle inspections if the system is not functioning correctly.

How to diagnose DTC B1381

To diagnose DTC B1381, follow these steps:

1. Use an OBD-II scanner to confirm the presence of DTC B1381.
2. Inspect the oil change reset button for physical damage.
3. Check the wiring and connectors associated with the reset button for signs of wear or corrosion.
4. Test the continuity of the circuit to ensure there are no breaks.
5. Examine the ECM or BCM for any faults or software issues.

How to fix DTC B1381 step-by-step instructions

To fix DTC B1381, follow these steps:

1. Repair or replace the oil change reset button if it is faulty.
2. Fix any damaged wiring or connectors found during the diagnosis.
3. Ensure all connections are secure and free from corrosion.
4. If necessary, reprogram or replace the ECM or BCM.
5. Clear the DTC using an OBD-II scanner and test the system to ensure the issue is resolved.

How to erase DTC B1381

To erase DTC B1381, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the ignition without starting the engine.
3. Access the trouble codes menu on the scanner.
4. Select the option to clear or erase codes.
5. Confirm the action and wait for the scanner to complete the process.
6. Disconnect the scanner and start the vehicle to verify that the code does not reappear.

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