Engine Control Module: Service and Repair

REMOVAL PROCEDURE




1. Record the Transaxle Fluid and Engine Oil Life Indexes.

IMPORTANT: The key must be in the LOCK/OFF position for a minimum of 30 seconds prior to disconnecting power to the PCM. This allows the PCM to store the vehicle information into the EEPROM. Failure to wait the 30 seconds may result in a EEPROM reset and the fluid life indexes being reset to 0.

2. Disconnect the negative battery cable.
3. Remove the screw retaining the intake air duct/resonator to the PCM housing.




4. Unsnap the air filter housing clamps on top of the air cleaner housing assembly.
5. Pull the intake air duct/resonator assembly (2) up enough to remove the air cleaner cover (3) and the PCM.
6. Slide the air cleaner element assembly toward the fender to separate the air cleaner element assembly from the air inlet assembly.




7. Loosen the PCM connector attaching bolts.
8. Disconnect both PCM connectors.
9. Remove the PCM (1).

INSTALLATION PROCEDURE

IMPORTANT: The replacement PCM must be programmed (flashed) using the latest Techline equipment and procedures.




1. Install the PCM (1).
2. Install the PCM connectors.

Tighten
Tighten the PCM connectors screws to 8 N.m (71 lb in).

Refer to Fastener Notice in Service Precautions.




3. Install the air cleaner cover (3) onto the air inlet housing.
4. Snap the assembly clamps into place.




5. Align the intake air duct/resonator assembly (3) into place.
6. Install the screw onto the intake air duct/resonator assembly.

Tighten
Tighten the intake air duct clamp to 10N.m (7 lb ft).

7. Connect the negative battery cable.
8. Start the engine. If the engine fails to start verify the following:
^ The PCM contains the correct program (DTC P0602 not set).
^ The PCM connectors are fully engaged into the PCM.
^ That all fuses are present and not blown
9. Connect a scan tool and perform the following:
^ Clear DTC P0603.
^ Use the scan tool to reset transaxle fluid life to that recorded prior to PCM removal.
^ Use the scan tool to reset engine oil life to that recorded prior to PCM replacement.
^ Perform the Theft Deterrent Learn Procedure. Refer to Programming Replacement Keys, Ign Cyl, or PCM in Antitheft and Alarm Systems.
^ Perform the CKP System Variation Learn Procedure. Refer to CKP System Variation Learn Procedure. Programming and Relearning
^ Perform the TP sensor Learn Procedure. Refer to TP Sensor Replacement. Service and Repair
^ Perform the IAC Valve Learn Procedure. Refer to IAC Valve Replacement. Service and Repair