Powertrain Control Module (PCM) Replacement

Service of the powertrain control module (PCM) should normally consist of either replacement of the PCM or electrically erasable programmable read only memory (EEPROM) programming. If the diagnostic procedures call for PCM replacement, inspect the PCM first to see if the PCM is the correct part. If the PCM is faulty, remove the PCM and install the new service PCM.

The new service PCM will not be 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.

There are no user serviceable parts in this PCM. The PCM should never be opened for any reason.

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, you must transfer the broadcast code and production PCM number to the service PCM label. DO NOT record the information on the PCM cover. This will allow positive identification of the PCM parts throughout the service life of the vehicle.

REMOVAL PROCEDURE




1. Disconnect the negative battery cable.
2. Remove the air cleaner assembly (4).




3. Disconnect the PCM harness connectors (2) from the PCM (1).
4. Remove the PCM (1) from the lower air cleaner housing.

INSTALLATION PROCEDURE

NOTE: Refer to Fastener Notice in Service Precautions.




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

Tighten
Tighten the connector fastener to 8 N.m (71 lb in).




2. Install the PCM (3) into the lower air cleaner housing.
3. Install the air cleaner assembly.
4. Connect the negative battery cable.
5. If a new PCM is being installed, program the PCM. Programming and Relearning