U0402

U0402-IMPLAUSIBLE DATA RECEIVED FROM TCM

For a complete wiring diagram, Refer to the Wiring Information.

- When Monitored:
With the ignition on for 4 seconds, no CAN BUS circuit error condition present, no lost communication with TCM condition present, and no system undervoltage or overvoltage condition present.

- Set Condition:
The Final Drive Control Module is receiving implausible data for gear or PRNDL position from the TCM.





TRANSMISSION DTCS PRESENT
1. Ignition on, engine not running.
2. With the scan tool, read DTCs in the Transmission Control Module.

Are there any DTCs present?

Yes

- Perform the appropriate diagnostic procedure.
- Perform the FDCM VERIFICATION TEST, FDCM Verification Test.

No

- Replace the Final Drive Control Module.
- Perform the FDCM VERIFICATION TEST, FDCM Verification Test.