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. Record the remaining engine oil life.

IMPORTANT: It is necessary to record the remaining engine oil life. If the replacement module is not programmed with the remaining engine oil life, the engine oil life will default to 100 percent. If the replacement module is not programmed with the remaining engine oil life, the engine oil will need to be changed at 5 000 km (3,000 mi) from the last engine oil change.




2. Record the preset radio stations.
3. Turn the ignition OFF.
4. Disconnect the negative battery cable.
5. Disconnect the powertrain control module (PCM) harness connectors.




6. Release the retaining tab located in the battery box lower half using a small screwdriver or other suitable tool.
7. Remove the PCM by lifting upward after releasing the tab.

INSTALLATION PROCEDURE




1. Slide the PCM into the PCM bracket on the front of the battery box.
2. Push down on the PCM until the retaining tab snaps into place.




3. Connect the PCM harness connectors.
4. Connect the negative battery cable.

NOTE: Refer to Fastener Notice in Service Precautions.

Tighten the battery terminal bolts to 17 N.m (13 lb ft).

5. Program the PCM. Refer to Control Module References in Computer/Integrating Systems. Programming and Relearning
6. Perform the crankshaft relearn procedure. Refer to DTC P0315. P0315

IMPORTANT: Following the PCM reprogramming, the PCM will have to learn the crankshaft position variation for misfire diagnostics.

7. Reset the clock and preset radio stations.