Powertrain Control Module (PCM) Replacement

PCM Mounting:

PCM With Knock Sensor Module:

Removing Knock Sensor Module From PCM:

CAUTION: To prevent internal Powertrain Control Module (PCM) damage, the ignition must be "OFF," when disconnecting or reconnecting power to the PCM.

REMOVE OR DISCONNECT
1. Disconnect negative battery cable
2. Disconnect PCM mounting hardware
3. Disconnect PCM electrical connectors
4. Remove PCM from engine compartment
5. Remove PCM access cover
6. Remove knock sensor module from PCM

INSTALL OR CONNECT
1. Install knock sensor module and access cover
2. Install PCM in vehicle
3. Connect PCM electrical connectors
4. Connect PCM mounting hardware
5. Connect negative battery cable

EEPROM PROGRAMMING

CAUTION: The software/calibration used for PCM reprogramming must match the vehicle application, or improper operation and/or damage may occur.

- Ensure battery is charged
- Turn ignition "ON"
- Ensure connections to the Data Link Connector (DLC) and battery/cigar lighter are secure
- Follow the most current Decline terminal/equipment instructions

PCM REPROGRAMMING FAILURE
- Check PCM connections
- Check Decline terminal/equipment for latest software version
- Repeat reprogramming procedures. If it fails again, replace the PCM. The replacement PCM must be programmed.

PCM FUNCTIONAL CHECK
Refer to System Diagnosis / Flow of Diagnosis and run the On-Board Diagnostic (OBD) System Check. Testing and Inspection