Powertrain Control Module (PCM) Replacement

Powertrain control module (PCM) service should normally consist of either PCM replacement or electrically erasable programmable read only memory (EEPROM) programming. If the diagnostic procedures require PCM replacement, check the PCM first to see if the correct part is being used.

IMPORTANT: In order to prevent internal PCM damage, the ignition must be OFF when you disconnect or reconnect the power to the PCM. For example, disconnect the power when you work with the following components:

^ A battery cable
^ The PCM pigtail
^ The PCM fuse
^ Jumper cables

IMPORTANT:
^ When you diagnose or replace the PCM, remove any debris from the PCM connector surfaces before servicing the PCM module connector gaskets. Ensure that the gaskets are installed correctly. The gaskets prevent contamination intrusion into the PCM.
^ The replacement PCM MUST be programmed.

Removal Procedure




1. Remove the air cleaner assembly.

NOTE:
^ Refer to PCM and ESD Notice in Service Precautions.
^ Refer to Ignition and PCM Notice in Service Precautions.

2. Disconnect the PCM harness connectors (4).
3. Release the spring latch (3) from the PCM (1).




4. Lift the PCM from the PCM mounting tray (2).
5. Remove the PCM (1) from the engine compartment.

Installation Procedure




1. Install the PCM (1) to the PCM mounting tray (2).
2. Secure the spring latch (3) to the PCM (1).

NOTE: Refer to Fastener Notice in Service Precautions.




3. Connect the PCM connectors (4) to the PCM (1).

Tighten
Tighten the PCM connector end fasteners to 8 N.m (71 lb in).

4. Install the air cleaner assembly.
5. If a new PCM is being installed, program the PCM. Refer to Powertrain Control Module (PCM) Programming (Onboard) or Powertrain Control Module (PCM) Programming (Offboard). Programming and Relearning