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Home >> Oldsmobile Truck >> 1999 >> Silhouette V6-3.4L VIN E >> Repair and Diagnosis >> Relays and Modules >> Relays and Modules - Powertrain Management >> Relays and Modules - Computers and Control Systems >> Engine Control Module >> Service and Repair >> Repair Instructions >> PCM Replacement/Programming

PCM Replacement/Programming

Powertrain Control (PCM) Module:





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.
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.
^ 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.

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.





REMOVAL PROCEDURE

CAUTION: Refer to Battery Disconnect Caution in Service Precautions.

1. Disconnect the negative battery cable.
2. Remove the coolant reservoir retaining bolt.
3. Remove the coolant reservoir and set aside.
4. Remove the SMCC module from the SMCC module bracket.
5. Remove the SMCC module bracket.
6. Remove the 3 bolts from the strut brace.
7. Remove the left front strut brace.
8. Unsnap the PCM cover and remove the PCM cover from the air cleaner housing.
9. Remove the PCM from the air cleaner housing.
10. Disconnect the PCM electrical connectors.

INSTALLATION PROCEDURE
1. Connect the PCM electrical connectors to the PCM.
2. Install the PCM into the air cleaner housing.
3. Reinstall the PCM cover to the air cleaner housing and snap the retainer.
4. Reinstall the left front strut brace.

NOTE: Refer to Fastener Notice in Service Precautions.

5. Reinstall the 3 strut brace retaining bolts.
6. Reinstall the SMCC module bracket.
7. Reinstall the SMCC module to the SMCC module bracket.
8. Reinstall the coolant reservoir. Be sure to check coolant system for proper level.

CAUTION: Refer to Battery Disconnect Caution in Service Precautions.

9. Reconnect the negative battery cable.
10. If a new PCM is being installed, program the EEPROM.
11. The PCM will need to learn the crankshaft variation. Testing and Inspection
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