Code Definition

B1867 — Battery Power Supply ECU Circuit Short To Ground

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

About B1867

B1867 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 B1867 is stored, the module has detected a short-circuit (voltage pulled to ground or to supply) 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.

B1867 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

This code indicates that a control module has detected a short to ground condition on its battery power supply circuit. The module monitors its supply voltage and logs this fault when the circuit voltage collapses to near 0V due to a low resistance path between the supply line and chassis ground. A short to ground on a supply circuit typically blows the protective fuse, but in some cases can also damage the wiring and adjacent components from the resulting current surge. Symptoms include the module being completely inoperative, blown supply fuses that immediately fail again when replaced, poss...

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