Pinpoint Test H: Transmission Control Module Signal

WARNING: This page is about a different car, the 2005 Mercury Montego, 2005 Ford Freestyle, and 2005 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.

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 scan tool.
- Key in ON position.
- Enter the following diagnostic mode on the scan tool: PID: Ignition Voltage (D10B).
- 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
- Connect the scan tool.
- Key in ON position.
- Enter the following diagnostic mode on the scan tool: 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.