Engine Control Module: Service and Repair

REMOVAL
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.

Fig.12 Powertrain Control Module (PCM) Location:

The PCM is located on the cowl panel in right/rear side of engine compartment.

The PCM is located on the cowl panel in right/rear side of engine compartment.

To avoid possible voltage spike damage to 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. If equipped, remove Transmission Control Module (TCM).
3. Remove coolant reserve/overflow tank.
4. Remove cover over electrical connectors. Cover snaps onto PCM.
5. Carefully unplug three 32-way connectors at PCM.

Fig.13 Powertrain Control Module (PCM) 32-Way Connectors:

6. Remove three PCM bracket-to-body mounting nuts.
7. Remove PCM/PCM bracket assembly from vehicle.

Fig.14 Powertrain Control Module (PCM) Mounting Bracket:

8. Remove 3 PCM-to-PCM bracket bolts (screws).

INSTALLATION
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.

The PCM is located on the cowl panel in right/rear side of engine compartment.
1. Check pins in three 32-way electrical connectors for damage. Repair as necessary
2. Install PCM to its mounting bracket. Tighten three mounting bolts to 3 Nm (25 in. lbs.) torque.
3. Install PCM/PCM bracket to body. Install 3 nuts and tighten 9 Nm (80 in. lbs.) torque
4. Install three 32-way connectors.
5. Install cover over electrical connectors. Cover snaps onto PCM.
6. Install coolant reserve/overflow tank.
7. If equipped, install Transmission Control Module (TCM).
8. Connect negative cable to battery
9. Use the DRB III scan tool to reprogram new PCM with vehicles original Identification Number (VIN) and original vehicle mileage