Engine Control Module: Service and Repair

POWERTRAIN CONTROL MODULE

USE THE 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

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.




2. Remove PCM bracket-to-body mounting bolt.
3. Remove assembly from vehicle.
4. Unlock and disconnect the electrical connectors from PCM.




5. Remove bracket from PCM.




6. Remove the rubber bumper from PCM.

INSTALLATION




1. Install rubber bumper to PCM back.
2. Check pins in electrical connectors for damage. Repair as necessary.
3. Install electrical connectors to PCM.




4. Install mounting bracket to PCM.




5. Install assembly to body. Install bolt and tighten 9 N.m (80 in. lbs.) torque.
6. Connect negative cable to battery.
7. Use the scan tool to reprogram new PCM with vehicles original Identification Number (VIN) and original vehicle mileage.