Fault Code U0402
Code meaning, symptoms, possible causes, part number, and estimated cost.
U0402
Invalid Data Received From Control Module
Code U0402 indicates that a certain control unit received invalid or erroneous data from the Transmission Control Module.
Part Details
Part Name
Transmission Control Module (TCM)
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪700 - ₪2500
Engine Location
Engine bay / Under dashboard
Symptoms
- Check Engine Light on
- Incorrect or delayed gear engagement
- Transmission malfunction
- Difficulty shifting gears
Possible Causes
- 1Internal TCM failure
- 2Damaged wiring or connectors
- 3Software incompatibility
- 4CAN Bus communication interference
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