Powertrain Control Module Replacement/Programming Procedure

Notice: In order to prevent possible Electrostatic Discharge damage to the PCM, Do Not touch the connector pins or the 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 the PCM to be replaced, PCM should be checked first to see if it is the correct part. If it is, remove the faulty PCM and install the new service PCM.

Notice: 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, 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 SERVICE PCM EEPROM WILL NOT BE PROGRAMMED. DTC P0602 indicates the EEPROM is not programmed or has malfunctioned.

Important: It is necessary to record the remaining engine oil life. If the replacement module is not programed with the remaining engine oil life, the engine oil life will default to 100%. If the replacement module is not programmed with the remaining engine oil life, the engine oil will need to be changed at 5000 km (3,000 mi) from the last engine oil change.

1. Using a scan tool, retrieve the percentage of remaining engine oil. Record the remaining engine oil life.



2. Disconnect the negative battery cable.
3. Remove the left strut brace.
4. Remove the air cleaner housing cover and the PCM from the housing assembly.
5. Disconnect the harness connectors from PCM.
6. Remove the PCM from the engine compartment.
7. If the PCM is being replaced, remove the KS module for installation in the new PCM. Refer to Knock Sensor Module Replacement .

1. If a new PCM is being installed, install the KS module from the original PCM. Refer to Knock Sensor Module Replacement .
2. Install the connectors to the PCM.
3. Install the PCM into the air cleaner housing cover.
4. Install the air cleaner housing cover.
5. Connect the negative battery cable.
6. If a new PCM is being Installed, program the EEPROM.
7. The PCM will need to learn the crankshaft variation. Refer to Powertrain Control Module Replacement/Programming

1. Set-up - Ensure that the following conditions have been met:

•	The battery is fully charged and a battery charger is not connected.

•	The ignition is on.

•	The Techline equipment cable connection at the DLC is secure.

•	If the BCM has been replaced the PCM must relearn the Theft Deterrent password. Refer to BCM Replacement/Programming procedure.

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 secure.

•	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 also program the replacement PCM.

1. Clear DTCs.
2. Perform Powertrain On-Board Diagnostic (OBD) System Check. Refer to Powertrain On Board Diagnostic (OBD) System Check .
3. Start the engine and run for one minute.
4. Scan for DTC(s) using the scan tool.
5. If DTC P0325 sets, the KS module may not be fully seated, is missing, or is faulty. Repair as necessary, refer to Knock Sensor Module Replacement .

Powertrain Control Module Replacement/Programming CKP Variation Learn Procedure

The crankshaft position system variation compensating values are stored in the PCM non-volatile memory after a learn procedure has been performed. If the actual crankshaft position system variation is not within the crankshaft position system variation compensating values stored in the PCM, DTC P0300 may set (refer to Diagnostic Aids for DTC P0300).

The Crankshaft Position System Variation Learn Procedure should be performed if any of the following conditions are true:

Caution: Before performing the Crankshaft Position System Variation Learning Procedure always set the vehicle parking brake and block the drive wheels in order to prevent personal injury. Release the throttle immediately when the engine starts to decelerate in order to eliminate over revving the engine. Once the learn procedure is completed, the control module will return engine control to the operator and the engine will respond to the throttle position.

Important: The scan tool crankshaft position system variation learn function will be inhibited if engine coolant temperature is less than 70°C (158°F). Allow the engine to warm to at least 70°C (158°F) before attempting the crankshaft position system variation learn procedure.

1. Set the parking brake.
2. Block the drive wheels.
3. Ensure the hood is closed.
4. Start the engine and allow engine coolant temperature to reach at least 70°C (158°F).
5. Turn OFF the ignition switch.
6. Select and enable the crankshaft position variation learn procedure with the scan tool.
7. Start the vehicle.
8. Apply and hold the service brake pedal firmly.
9. Ensure the transaxle is in park.
10. Increase accelerator pedal position until the fuel cutoff is reached at 5150 rpm. Immediately release the accelerator pedal after fuel cutoff is reached.
11. The crankshaft position system variation compensating values are learned when the rpm decreases back to idle. If the procedure terminates.
12. Observe DTC status for DTC P1336.
13. If the scan tool indicates that DTC P1336 ran and passed, the crankshaft position system variation learn procedure is complete. If the scan tool indicates DTC P1336 failed or not run, check for other DTCs. If no DTCs other than P1336 are set, repeat the crankshaft position system variation learn procedure as necessary.