PCM Replacement/Programming

Service of the powertrain control module (PCM) should normally consist of either replacement of the PCM or EEPROM programming. If the diagnostic procedures call for PCM replacement, test the PCM first in order to verify that the PCM is faulty. If the PCM is faulty, remove the PCM and install the new service PCM.

The new service PCM is not programmed. You must program the new PCM. DTC P0602 indicates the EEPROM is not programmed or has malfunctioned.

NOTE:
^ In order to prevent possible electrostatic discharge damage to the PCM, do not touch the connector pins or soldered components on the circuit board.
^ 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 (controller), be sure to transfer the broadcast code and production PCM number to the service PCM label. Do not record the information on the PCM cover. This allows positive identification of PCM parts throughout the service life of the vehicle.

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 clamp securing the air intake duct to the air cleaner housing.
5. Carefully remove the air intake duct from the throttle body and air cleaner housing (1).
6. Remove the 2 screws (2) from the air cleaner housing sections.
7. Remove the air cleaner housing cover assembly (1).
8. Without disconnecting the PCM connectors, remove the PCM and harness from the PCM housing.
9. Disconnect the PCM connectors.

INSTALLATION PROCEDURE
1. Reconnect the PCM connectors.
2. Carefully reinstall the PCM and harness into the PCM housing (3).
3. Reinstall the air cleaner housing cover assembly (1).
4. Reinstall the 2 screws (2) from the air cleaner housing sections.
5. Carefully reinstall the air intake duct to the throttle body and air cleaner housing (1).
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.