Code result
C00A4
Driveline Control Module Rear Differential Unit B Control Circuit Driver
High severity
What it means
Fault on driveline control module driver for rear differential unit B.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Internal driver fault
highOne of the most commonly reported causes for this code — check this first.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose C00A4 freeNo credit card required