Control Module: Service and Repair
OVERVIEWDo not interchange Transmission Control Modules with previous year transmission control modules. If a same year TCM is being used from a different vehicle, the following procedures must be performed:
^ Quick Learn Procedure
^ Electronic Pinion Procedure
The Transmission Control Module is located on the right fender inner panel, in the engine compartment. It is held in place by four mounting screws.
NOTE: If the Transmission Control Module has been replaced, the following procedures must be performed:
^ Quick Learn Procedure: This procedure will allow the transmission control module to learn the characteristics of the vehicle.
^ Electronic Pinion Factor Procedure: This procedure will reprogram the TCM to compensate for different tire sizes and final drive ratios.
REMOVAL
Fig. 27:
1. Loosen 60 way retaining screw, located in the center of the 60 way connector (Fig.27). Then disconnect the 60 way connector on Transmission Control Module.
Fig. 28:
Fig. 29:
2. Remove Transmission Control Module mounting screws and lift module from vehicle (Figs 28 and 29).
INSTALLATION
1. To install, reverse removal procedure.