Service of the powertrain control module (PCM) should normally consist of either replacement of the PCM or electrically erasable programmable read only memory (EEPROM) programming. If the diagnostic procedures call for PCM replacement, inspect the PCM first to see if the replacement is the correct part. If the PCM is faulty, remove the PCM 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.

Notice: Do not touch the connector pins or soldered components on the circuit board in order to prevent possible electrostatic discharge (ESD) damage to the 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: 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 percent. If the replacement module is not programmed with the remaining engine oil life, the engine oil will need to be changed at 5 000 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. Refer to Battery Negative Cable Disconnection and Connection .
3. Remove the left front inner fender brace. Refer to Front Fender Upper Diagonal Brace Replacement .
4. Remove the air cleaner. Refer to Air Cleaner Assembly Replacement .
5. Disconnect the PCM electrical connectors



6. Remove the PCM from the air cleaner lower housing.

1. Install the PCM to the air cleaner lower housing.



2. Install the PCM electrical connectors.
3. Install the air cleaner. Refer to Air Cleaner Assembly Replacement .
4. Install the left front inner fender brace. Refer to Front Fender Upper Diagonal Brace Replacement .
5. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
6. Program the NEW PCM. Refer to Service Programming System (SPS) .