PCM Replacement/Programming

Service of the PCM should normally consist of either replacement of the PCM or EEPROM programming. If the diagnostic procedures call for PCM Replacement, check the PCM first to see if it is the correct part. If the PCM is faulty, remove it 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.
^ 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), 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.

Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the air cleaner assembly cover.
3. Remove the PCM cover shield.




4. Remove the PCM from the mounting bracket (1).
5. Disconnect the harness connectors from the PCM.
6. Remove the PCM from the engine compartment.

Installation Procedure




1. Connect the harness connectors to the PCM.
2. Install the PCM (1) into the mounting bracket.




3. Install the PCM cover.
4. Install the air cleaner assembly cover.
5. Connect the negative battery cable.
6. If a new PCM is being installed, program the PCM.
7. Perform the crankshaft position system variation learn procedure. Testing and Inspection