Removal Procedure
NOTE:
In order to prevent internal damage to the PCM, the ignition must be OFF when disconnecting or reconnecting the PCM connector.
Service should normally consist of either replacement of the powertrain control module (PCM) or electrically erasable programmable read-only memory (EEPROM) re-programming.
If the diagnostic procedures call for the PCM to be replaced, the PCM should be inspected first in order to verify the PCM is the correct part. DTC P0602 indicates the EEPROM programming has malfunctioned. When DTC P0602 is set, re-program the EEPROM.
- Using a scan tool, retrieve the percentage of remaining engine oil. Record the remaining engine oil life.
- Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
- Remove the left closeout/insulator panel. Refer to Closeout/Insulator Panel Replacement - Left (Outboard) or Closeout/Insulator Panel Replacement - Left (Inboard) in Instrument Panel, Gages, and Console.
- Loosen the PCM connector screws (1).
- Disconnect the PCM electrical connectors.
- Depress the PCM retaining tabs.
- Slide the PCM from the PCM bracket.
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.
CAUTION:
Refer to Battery Disconnect Caution in Cautions and Notices.
NOTE:
Do not touch the PCM connector pins or soldered components on the circuit board in order to prevent possible electrostatic discharge (ESD) damage. Do not remove the integrated circuit boards from the carrier.