Invalid Data Received from TCM
Another module is receiving invalid data from the transmission control module.
Informational only. Consult a qualified mechanic.
- TCM software issue
- CAN bus problem
- Faulty TCM
Try clearing codes. May need TCM reflash or replacement.
What does U0402 mean?
The U0402 OBD-II diagnostic trouble code (DTC) indicates: invalid data received from tcm. This is a medium-severity network code that your vehicle's onboard diagnostics system triggers when another module is receiving invalid data from the transmission control module. If your check engine light is on with this code, the vehicle is generally safe to drive, but you should have it inspected soon.
Use Your Service Book to log this diagnostic trouble code to your vehicle's service history, track repairs, and get maintenance reminders — all for free.
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