Code Definition

B1292 — Battery Power Relay Circuit Failure

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

About B1292

B1292 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 B1292 is stored, the module has detected an electrical-circuit fault in the wiring, connector, or driver associated with the named component.

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.

B1292 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 battery power relay is a high current switching device that controls the main battery feed to one or more downstream electrical systems, commonly used to isolate sleep current draw or to enable accessory and engine compartment systems on demand. The Body Control Module or relevant control module commands the relay coil and monitors the switched output for the expected voltage state. DTC B1292 sets when the module detects that the relay output does not match the commanded state, indicating an open or high resistance condition in the coil control circuit, the relay contacts, or the load side...

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