OBD-II code · Chassis

C0094 4WD/AWD Rear Differential Unit Temperature Sensor

Fault on rear differential unit temperature sensor.

Is it safe to drive with C0094?

The car may go into limp mode (reduced power). Get it diagnosed before a long trip.

Common causes

  • Most likelySensor failed

Symptoms

  • ABS warning light on
  • ESC/stability control deactivated
  • Possible reduced brake assist
  • Speedometer may behave erratically

Repair at a glance

Difficulty
Medium
DIY friendly
Best left to a mechanic
Typical labour
1–3 h
Emissions test
Usually unaffected
Parts involved
Rear Diff Temp Sensor

Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.