U0402moderate severityNetwork
Invalid Data Received from TCM
on 2002 Mini Cooper 1.6L I4 · FWD
What this code means
The data received from the Transmission Control Module is invalid, out of range, or corrupted.
Symptoms
- Transmission shifting issues
- Erratic shift points
- Check Engine Light
- Transmission slip feeling
- Limp mode
Common causes
- TCM software glitch
- CAN bus noise on TCM circuit
- TCM internal failure
- Bad ground connection
- Wiring interference near TCM
Diagnostic steps
- Check TCM for stored codes
- Update TCM software
- Test CAN bus signal quality at TCM
- Inspect TCM ground connections
- Check for wiring damage near TCM
Repair notes
Reprogram TCM. Check CAN bus quality and TCM ground connections.
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Other Network codes on this vehicle
CC-ID-181
System Check Failed
CC-ID-207
Central Electronics Failure, Stop Vehicle
U0001
High Speed CAN Communication Bus
U0002
High Speed CAN Communication Bus Performance
U0003
High Speed CAN Communication Bus (+) Open
U0004
High Speed CAN Communication Bus (+) Low
U0005
High Speed CAN Communication Bus (+) High
U0006
High Speed CAN Communication Bus (-) Open
U0007
High Speed CAN Communication Bus (-) Low
U0008
High Speed CAN Communication Bus (-) High