Engine Control Module: Service and Repair

POWERTRAIN CONTROL MODULE (PCM) REPLACEMENT

REMOVAL PROCEDURE
1. Using a scan tool, retrieve the percentage of remaining engine oil and the remaining automatic transmission fluid life. Record the remaining engine oil and the remaining automatic transmission fluid life.

NOTE: Turn the ignition OFF when installing or removing the PCM connectors and disconnecting or reconnecting the power to the PCM (battery cable, PCM pigtail, PCM fuse, jumper cables, etc.) in order to prevent internal PCM damage.

IMPORTANT:
- It is necessary to record the remaining engine oil life. If the replacement module is not programed with the remaining engine oil life, the engine oil life will default to 100%. If the replacement module is not programmed with the remaining engine oil life, the engine oil will need to be changed at 5000 km (3,000 mi) from the last engine oil change.
- It is necessary to record the remaining automatic transmission fluid life. If the replacement module is not programed with the remaining automatic transmission fluid life, the automatic transmission fluid life will default to 100%. If the replacement module is not programmed with the remaining automatic transmission fluid life, the automatic transmission fluid will need to be changed at 83000 km (50,000 mi) from the last automatic transmission fluid change.

2. Turn OFF the ignition.
3. Disconnect the battery negative cable.




4. Raise and support the vehicle. Refer to Vehicle Lifting.
5. Remove the front air deflector.




6. Remove the bolt (1) from the powertrain control module (PCM) housing cover.
7. Push the cover outboard to release the locking tab.
8. Swing the cover open and remove the cover from the vehicle.




9. Remove the PCM from the housing.
10. Loosen the screws (1) at the PCM electrical connectors.
11. Disconnect the PCM electrical connectors.
12. Remove the PCM from the vehicle.

INSTALLATION PROCEDURE




1. Install the PCM to the vehicle.
2. Install the PCM wiring harness.
3. Tighten the PCM electrical connector screws (1).

NOTE: Refer to Fastener Notice in Service Precautions.

Tighten the PCM electrical connector bolts to 8 N.m (71 lb in).

4. Install the PCM to the PCM housing.




5. Install the PCM housing cover.
6. Install the bolt (1) to the PCM cover housing.

Tighten the PCM housing cover bolt to 10 N.m (89 lb in).




7. Install the front air deflector.
8. Lower the vehicle.
9. Connect the battery negative cable.
10. Program the PCM. Refer to Powertrain Control Module Programming and Setup in Programming and Setup. Programming and Relearning