Code Definition

B1214 — Running Board Lamp Circuit Failure

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

About B1214

B1214 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 B1214 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.

B1214 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 Body Control Module (BCM) monitors the running board lamp circuit for correct electrical operation, providing low side driver control of the illuminated step lamps mounted beneath the vehicle rocker panels or running boards. DTC B1214 is set when the BCM detects that the current draw on the running board lamp circuit has fallen outside the expected range, indicating either an open circuit from a failed bulb or broken wire, or a short circuit drawing excessive current. The running board lamps typically illuminate when a door is opened, when the key fob unlock button is pressed for a welcome...

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