What it means
The driveline control module monitors data from rear differential actuator A and sets this code when the data is invalid or outside the expected range.
How it works
The driveline module evaluates feedback data associated with rear differential actuator A to determine whether the actuator's reported state is valid. C0096 is set when that data is implausible or outside the accepted range, which can result from a feedback, wiring, power, ground, calibration, or module problem.
Common causes
Most likely first.
- Actuator data or calibration fault
- Damaged wiring or connector
- Power or ground fault
- Driveline control module fault
Symptoms
- AWD or 4WD warning
- AWD may be unavailable or limited
How to diagnose it
- Read the subtype details and freeze-frame data from the driveline module, and identify what actuator A data the module flags as invalid.
- Inspect actuator A's connector and harness at the rear differential for corrosion, loose terminals, damage, or poor routing.
- Check actuator A power, ground, and feedback wiring for opens, shorts, and poor connections using the vehicle wiring diagram.
- Compare scan-tool actuator A data with commanded state while operating the AWD/4WD controls, looking for missing or implausible feedback.
- If the circuit is intact, verify any required actuator data setup or calibration using vehicle-specific service information, then assess the driveline module only after other causes are excluded.
Common fixes
- Repair damaged feedback wiring or secure and clean the actuator A connector.
- Restore a reliable power or ground connection to actuator A.
- Correct an actuator A data or calibration issue using the manufacturer's procedure.
- Replace a faulty actuator A or repair the driveline module only after circuit and data checks isolate that component.
Can I keep driving?
AWD/4WD may be limited or unavailable because the system cannot trust actuator A's reported data. Drive with care on low-traction roads and avoid relying on rear differential engagement until the fault is resolved.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.