Powertrain Control Module (PCM) Replacement/Programming

PCM And Housing:

PCM REPLACEMENT/PROGRAMMING

NOTES:
- 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.
- 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.
The Crankshaft Position System Variation Learn Procedure should be performed if:
^ The PCM has been replaced.
^ The PCM has been reprogrammed. Crankshaft Position System Variation Learn Procedure

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.



REMOVAL PROCEDURE
1. Disconnect the negative battery cable.
2. Remove the left strut brace.
3. Remove the Air cleaner housing cover and the PCM from the housing assembly.
4. Disconnect the harness connectors from the PCM.
5. Remove the PCM from the engine compartment.


INSTALLATION PROCEDURE
1. Install the connectors to PCM.
2. Install the PCM into the Air cleaner housing assembly.
3. Install the Air cleaner housing cover.
4. Connect the negative battery cable.
5. It a new PCM is being installed, program the EEPROM.


EEPROM PROGRAMMING
1. Set-up - Ensure that the following conditions have been met:
^ The battery is fully charged and charging equipment disconnected from the vehicle.
^ The ignition is ON.
^ The Vehicle Interface Module 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 Techline 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. Perform the On-Board Diagnostic System Check.
2. Start the engine and the engine run for one minute.
3. Use the scan tool in order to scan for the DTCs.