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Engine Control Module: Service and Repair


NOTE: USE THE DRB III SCAN TOOL TO REPROGRAM THE NEW POWERTRAIN CONTROL MODULE (PCM) WITH THE VEHICLES ORIGINAL IDENTIFICATION NUMBER (VIN) AND THE VEHICLES ORIGINAL MILEAGE. IF THIS STEP IS NOT DONE, A DIAGNOSTIC TROUBLE CODE (DTC) MAY BE SET.



REMOVAL

Fig. 9 PCM Location:





The PCM is located in the engine compartment.

To avoid possible voltage spike damage to the PCM, ignition key must be OFF and negative battery cable must be disconnected before unplugging PCM connectors.

1. Disconnect negative battery cable at battery.
2. Remove cover over electrical connectors. Cover snaps onto PCM.
3. Carefully unplug the 32-way connectors from PCM.
4. Remove the PCM mounting bolts and remove PCM from vehicle.

INSTALLATION
1. Install PCM and mounting bolts to vehicle.
2. Tighten bolts to 4 Nm (35 in. lbs.).
3. Check pin connectors in the PCM and the 32-way connectors for corrosion or damage. Repair as necessary.
4. Install the 32-way connectors.
5. Install cover over electrical connectors.
6. Install battery cable.
7. Use the DRB III scan tool to reprogram new PCM with vehicles original Identification Number (VIN) and original vehicle mileage. If this step is not done, a Diagnostic Trouble Code (DTC) may be set.
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