[amidgeha]

TCM Power Input Signal

The Engine Control Module (ECM) monitors the TCM Power Input Signal. The ECM sets the OBDII when the TCM Power Input Signal is not to factory specifications.

Cause:
Transmission Control Module (TCM) Power and/or Ground connection
Faulty Transmission Control Module (TCM)
Transmission Control Module (TCM) harness is open or shorted
Transmission Control Module (TCM) circuit poor electrical connection

Symptoms:
Check engine light