Pinpoint Test H: Transmission Control Module Signal

NOTE: The transmission control module (TCM) is integrated into the mechatronic assembly. If installing a new transaxle or a mechatronic assembly, the TCM will need to be checked and recalibrated (reflashed) to the latest level calibration available.

H1 TRANSMISSION CONTROL MODULE SIGNAL OUT OF RANGE
- Check to make sure the transaxle harness connector is fully seated, pins are fully engaged in connector and in good condition before proceeding.
- Connect the diagnostic tool.
- Key in ON position.
- Monitor PID: Ignition
- Is the ignition voltage between 11 and 15 volts.
1. YES : Go to H2.
2. NO : REPAIR the open or short circuit harness side.
H2 TRANSMISSION CONTROL MODULE SIGNAL OUT OF RANGE
- Key in ON position.
- PID: VPWRTCM
- Is the operating voltage between 11 and 15 volts.
1. YES : System operating correctly.
2. NO : FIX other DTCs first. CHARGE the vehicle battery.