Operation CHARM: Car repair manuals for everyone.
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Engine Control Module: Service and Repair












Removal Procedure
1. Disconnect the negative battery cable.
2. Block the wheels.
3. Remove the front console assembly.
3.1 Remove the four screws.
3.2 Remove the transfer shift lever knob by unscrewing the knob.
3.3 Move the transmission gear selector out of the park position.
3.4 Lift up sharply on the back edge of the assembly.
3.5 Disconnect the seat heater switch connectors (if equipped).
3.6 Disconnect the POWER and WINTER switch connectors.
3.7 Lift out the front console assembly.
4. Disconnect the red, white, and blue electrical connectors at the PCM.
5. Remove the two screws in the front of the PCM.
6. Remove the one screw at the left rear of the PCM.
7. Pull the PCM straight out from the dashboard.

Installation Procedure
1. Insert the PCM into the dashboard.
^ Line up the holes in front for the mounting screws.
2. Install the PCM with two screws in the front and one screw at the left rear.
3. Plug the red, white, and blue connectors into the appropriate sockets.
4. Install the front console assembly.
4.1 Connect the POWER and WINTER switch connectors.
4.2 Connect the seat heater switch connectors (if equipped).
4.3 Press down on the rear of the front console until the clips lock into the holes in the rear console.
4.4 Secure the front console in place with four screws (two per side).
4.5 Install the transfer shift lever knob.
5. Remove the wheel blocks.
6. Connect the negative battery cable.
7. If the PCM is replaced, the new PCM will need to be programmed.