C009B

4WD/AWD Rear Differential Unit Actuator A Position Sensor C

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$167–444 (est.)

Symptoms

The check engine or all-wheel drive light comes on
Disabling the all-wheel drive system
Incorrect power distribution between axles
Noticeable deterioration in handling on slippery surfaces

Causes

Malfunction of the differential drive position sensor
Open or shorted sensor wiring harness
Poor contact in the sensor connector
Mechanical failure of the differential drive
Problems with the four-wheel drive control unit

How to Fix

Check the resistance of the position sensor and compare with the nominal values
Check the integrity of the wiring harness and the quality of contacts in the connectors
Scan the system for other related errors
If necessary, replace the position sensor or differential drive
After repair, carry out a test drive to check the operation of the system.

Related codes

C009A C009C C009D U0100