DTC code
C00A3
Driveline Control Module Rear Differential Unit A Control Circuit Driver
Technical guide
reference — not individually verifiedSymptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Probable causes
high: Internal driver fault
Diagnostic steps
Check the components involved: driveline module, rear diff actuator a. Verify wiring and connectors before replacing any part. Job difficulty: hard (workshop equipment required). Typical European range — 400-3000 EUR, 1-5 h. Reference values only.
Cross-checked technical synthesis (QA). It does not replace the manufacturer's procedure.
AI here is a librarian: this page shows only what mechanics confirmed, or says “unknown”. It never suggests a diagnosis — MECCANIC interprets the code, never your car.
0 confirmed cases on C00A3
Nothing confirmed yet for this code. No guess is offered on purpose.
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