PCM Replacement/Programming

NOTE: In order to prevent possible Electrostatic Discharge damage to the PCM, Do Not touch the connector pins or the soldered components on the circuit board.

Service of the PCM should normally consist of either replacement of the PCM or EEPROM programming. If the diagnostic procedures call for the PCM to be replaced, the PCM should be inspected first to see if it is the correct part. If it is, remove the faulty PCM and install the new service PCM.

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: When replacing the production PCM with a service PCM, it is important to transfer the broadcast code and production PCM number to the service PCM label. Do not record on PCM cover. This will allow positive identification of PCM parts throughout the service life of the vehicle.

THE SERVICE PCM EEPROM WILL NOT BE PROGRAMMED. DTC P0602 indicates the EEPROM is not programmed or has malfunctioned.




Removal Procedure

CAUTION: Refer to Battery Disconnect Caution in Service Precautions.

1. Disconnect the negative battery cable.
2. Disconnect the IAT sensor electrical connector.
3. Remove the 3 bolts from the inner fender brace and remove the brace.
4. Loosen the clamps securing the air intake duct/MAF sensor to the air cleaner housing and throttle body.
5. Carefully remove the air intake duct/MAF sensor from the throttle body and air cleaner housing (1).
6. Remove the 2 screws (2) from the 2 air cleaner housing sections.
7. Remove the air cleaner housing cover assembly.
8. Without disconnecting the PCM connectors, remove the PCM (4) and harness from the PCM housing (3).
9. Disconnect the PCM connectors.

Installation Procedure
1. Connect the PCM connectors.
2. Carefully install the PCM (4) and harness into the PCM housing (3).
3. Install the air cleaner housing cover assembly (1).
4. Install the 2 screws to the 2 air cleaner housing sections.
5. Carefully install the air intake duct to the throttle body and air cleaner housing.
6. Tighten the clamp securing the air intake duct to the air cleaner housing.
7. Position the inner fender brace and reinstall the 3 bolts.
8. Connect the Negative Battery Cable.
9. If a replacement PCM is being installed, program the PCM.
The replacement PCM will NOT allow Secondary AIR Pump operation until a total of 10 miles have accumulated.
10. If a replacement PCM is being installed, perform the CKP System Variation Learn Procedure. Programming and Relearning