Fault Code U0121
Code meaning, symptoms, possible causes, part number, and estimated cost.
U0121
Lost Communication With Anti-Lock Brake System Module
Lost Communication with ABS Computer.
Part Details
Part Name
ABS Computer / CAN Wiring
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪300 - ₪2,000
Engine Location
Engine Bay — ABS Unit
Symptoms
- ABS Light On
- ABS Disabled
- Stability Control Disabled
Possible Causes
- 1Defective ABS Computer
- 2Defective CAN Wiring
- 3Disconnected connector
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