Powertrain Control Module (PCM) Replacement

If the diagnostic procedures call for the powertrain control module (PCM) to be replaced, then programming the EEPROM in the PCM will be necessary. Use the procedure.

Removal Procedure

CAUTION: Refer to Battery Disconnect Caution in Service Precautions.




1. Disconnect the negative battery cables.
2. Remove the engine cover.
3. Disconnect the harness connectors from the powertrain control module (PCM).




4. Remove the PCM mounting nuts.
5. Remove the PCM from the mounting bracket.

IMPORTANT: To prevent possible electrostatic discharge to the PCM, do not touch the component leads, and do not remove the integrated circuit from the carrier.

6. Remove the PCM mounting hardware.

Installation Procedure




1. Install the PCM mounting hardware.
2. Slide the PCM into the mounting bracket.
3. Install the PCM mounting nuts.

IMPORTANT: Ensure that the PCM electrical harness is properly routed to avoid contact with the engine cover during installation.




4. Reconnect the PCM harness connectors.
5. Install the engine cover.
6. Connect the negative battery cables.
The MIL, the antilock and the brake lamps will continue to be enabled until the PCM is programmed. Once the programming is complete, the lamps will be turned OFF and normal operation will occur. Programming and Relearning