Engine Control Module: Service and Repair

USE THE DRB 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. 4 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 plastic shield from over 32-way connectors. Shield snaps to connectors.
3. Carefully unplug three 32-way connectors from PCM.
4. Remove three PCM mounting bolts and remove PCM from vehicle.

INSTALLATION
1. Install PCM and mounting bolts to vehicle.
2. Tighten bolts to 4 N.m (35 in. lbs.).
3. Check pin connectors in PCM and three 32-way connectors for corrosion or damage. Also check pin heights in connectors. Pin heights should all be the same. Repair as necessary before installing 32-way connectors.
4. Install three 32-way connectors.
5. Install plastic shield to 32-way connectors. Shield snaps to connectors.
6. Install battery cable.
7. Use the DRB scan tool to reprogram new PCM with vehicles original Identification Number (VIN) and original vehicle mileage.