Code Definition

B1381 — Oil Change Reset Button Circuit Open

System: Body  |  Type: Manufacturer-Specific  |  Make: Generic

About B1381

B1381 is a manufacturer-specific body diagnostic trouble code. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B1381 is stored, the module has detected an open (broken or disconnected) electrical path in the monitored circuit.

Scanning & clearing: Body (B) codes are often stored in the body control module, airbag module, or climate module. A basic OBD-II tool usually will not read body codes — an enhanced or OEM-level scan tool is typically required.

B1381 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The oil change reset button is part of the maintenance reminder system on vehicles equipped with a service interval indicator, typically located on the instrument cluster faceplate or controlled via a steering wheel or stalk button. The instrument cluster or body control module monitors the button input through a switched signal line that is normally referenced to ground or to a pull up reference voltage supplied by the module. DTC B1381 sets when the control module detects an open circuit on this input, indicating that either the wiring between the button and the module is broken, the button ...

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