What does code B0158 mean?

Q: What does code B0158 mean?

Ambient Air Temperature Sensor Circuit. B0158 indicates the body control module or climate control module has detected an out-of-range signal from the ambient air temperature sensor circuit. The sensor is a thermistor that changes resistance with outside temperature, and the module expects a voltage within a specific range; a reading outside that range for a set time triggers the code.

DTC codes / B01xx · Airbags, seats, doors, lights and comfort systems / B0158

B0158Ambient Air Temperature Sensor Circuit

B0158 indicates the body control module or climate control module has detected an out-of-range signal from the ambient air temperature sensor circuit. The sensor is a thermistor that changes resistance with outside temperature, and the module expects a voltage within a specific range; a reading outside that range for a set time triggers the code.

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.