Grand Prix V6-3.8L SC VIN 1 (1997)
Powertrain Control Module: Service and Repair
Descriptive
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 PO6O2 indicates the EEPROM is not programmed or has
malfunctioned.
Notice: In order to prevent possible electrostatic discharge damage to the PCM, do not touch the connector pins or soldered components on the
circuit board.
Notice: In order to prevent internal PCM damage, leave 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.).
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 left strut brace.
3. Remove the Air cleaner housing cover and the PCM from the housing assembly.
4. Disconnect the harness connectors from the PCM.
5. Remove the PCM from the engine compartment.
6. If the PCM is being replaced, remove the KS module for installation in the new PCM.
INSTALLATION PROCEDURE
1. If a new PCM is being installed, install the KS module from the original PCM.
2. Install the connectors to PCM.
3. Install the PCM into the Air cleaner housing assembly.
4. Install the Air cleaner housing cover.
5. Connect the negative battery cable.
6. If a new PCM is being installed, program the EEPROM.
EEPROM PROGRAMMING
1. Set-up - Ensure that the following conditions have been met:
-
The battery is fully charged.
-
The ignition is ON.
