What does code B0337 mean?

Q: What does code B0337 mean?

Passenger Seat Heater Circuit. B0337 indicates that the body control module (BCM) has detected a fault in the passenger seat heater circuit, which typically means the circuit is open, shorted to ground, or shorted to voltage. The BCM monitors the heater element and wiring for expected resistance and voltage, and when the readings fall outside the programmed range, it stores this code and may disable the heater function.

DTC codes / B03xx · Airbags, seats, doors, lights and comfort systems / B0337

B0337Passenger Seat Heater Circuit

B0337 indicates that the body control module (BCM) has detected a fault in the passenger seat heater circuit, which typically means the circuit is open, shorted to ground, or shorted to voltage. The BCM monitors the heater element and wiring for expected resistance and voltage, and when the readings fall outside the programmed range, it stores this code and may disable the heater function.

SystemBody

Code typeGeneric (all makes)

SeverityLow

Fix difficultyIntermediate

AreaAirbags, seats, doors, lights and comfort systems

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.