LSS V6-3.8L VIN K (1997)
Powertrain Control Module: Service and Repair
Powertrain Control Module (PCM) Replacement
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 malfunctioning, 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.
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 pans throughout the service life of the
vehicle.
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.).
Description
REMOVAL
1. Disconnect the negative battery cable.
2. Remove the PCM sight shield (1).
3. Remove the PCM (3) from the mounting bracket (6).
4. Disconnect the hamess connectors (2) from the PCM.
