Powertrain Control Module (PCM) Replacement/Programming

PCM REPLACEMENT/PROGRAMMING
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.

CAUTIONS:
^ 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.

NOTE: 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.

REMOVE OR DISCONNECT
1. Negative battery cable.
2. Coolant reservoir.
3. SMCC module from the SMCC module bracket.
4. SMCC module bracket.
5. Left front strut brace.
6. PCM cover from the air cleaner housing.
7. PCM from the air cleaner housing.

INSTALL OR CONNECT
1. PCM into the air cleaner housing.
2. PCM cover to the air cleaner housing.
3. Left front strut brace.
4. SMCC module bracket.
5. SMCC module to the SMCC module bracket.
6. Coolant reservoir and check coolant system for proper level.
7. Negative battery cable.
8. If a new PCM is being installed, program the EEPROM.
9. The PCM will need to learn the crankshaft variation. Refer to Crankshaft Position System Variation Learn Procedure. Crankshaft Position System Variation Learn Procedure

EEPROM PROGRAMMING
1. Set-up - Ensure that the following conditions have been met:
^ The battery is fully charged and battery charger is not connected.
^ The ignition is ON.
^ The Techline equipment cable connection at the DLC is secure.

2. Program the PCM using the latest software matching the vehicle. Refer to up to date Techline equipment users instructions.

3. If the PCM fails to program, proceed as follows:
^ Ensure that all PCM connections are OK.
^ Check the Techllne equipment for the latest software version.
^ Attempt to program the PCM. If the PCM still cannot be programmed properly, replace the PCM. You must program the replacement PCM.

FUNCTIONAL CHECK
1. Clear DTCs.
2. Perform the Powertrain OBD System Check.
3. Start the engine and the engine run for one minute.
4. Use the scan tool in order to scan for the DTCs.