What does code C009F mean?

Q: What does code C009F mean?

4WD/AWD Rear Differential Unit Actuator B Position Sensor C. This code indicates that the control module for the four-wheel-drive or all-wheel-drive system has detected an implausible signal from the position sensor for actuator B in the rear differential unit. The sensor is responsible for reporting the physical position of the actuator that engages or disengages the rear differential lock or coupling, and the module sets this code when the voltage or signal does not match expected values for the commanded state.

DTC codes / C00xx · Brakes, steering and suspension / C009F

C009F4WD/AWD Rear Differential Unit Actuator B Position Sensor C

This code indicates that the control module for the four-wheel-drive or all-wheel-drive system has detected an implausible signal from the position sensor for actuator B in the rear differential unit. The sensor is responsible for reporting the physical position of the actuator that engages or disengages the rear differential lock or coupling, and the module sets this code when the voltage or signal does not match expected values for the commanded state.

SystemChassis

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaBrakes, steering and suspension

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