What does code C0093 mean?

Q: What does code C0093 mean?

4WD/AWD Power Transfer Unit Temperature Sensor. C0093 indicates that the all-wheel-drive (AWD) or four-wheel-drive (4WD) control module has detected an abnormal signal from the power transfer unit (PTU) temperature sensor, which monitors the fluid or component temperature inside the transfer case. The computer sets this code when the sensor voltage or resistance falls outside the expected range for the current operating conditions, often due to a faulty sensor, wiring issue, or low fluid level.

DTC codes / C00xx · Brakes, steering and suspension / C0093

C00934WD/AWD Power Transfer Unit Temperature Sensor

C0093 indicates that the all-wheel-drive (AWD) or four-wheel-drive (4WD) control module has detected an abnormal signal from the power transfer unit (PTU) temperature sensor, which monitors the fluid or component temperature inside the transfer case. The computer sets this code when the sensor voltage or resistance falls outside the expected range for the current operating conditions, often due to a faulty sensor, wiring issue, or low fluid level.

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.