Powertrain Control Module: Removal
WARNING: This page is about a different car, the 2003 Pontiac Bonneville, 2003 Buick Park Avenue, and 2003 Buick LeSabre. However, it is still accessible from the selected car via links, so may be relevant.
- PCM is located inside air cleaner housing assembly. See Figure. Turn OFF the ignition. Disconnect negative battery cable. Disconnect the Intake Air Temperature (IAT) sensor electrical connector.
- Loosen the clamp securing the air intake duct to the air cleaner housing. Carefully remove the air intake duct from the throttle body and from the air cleaner housing. Remove the 2 screws from the 2 air cleaner housing sections. Remove the air cleaner housing cover assembly.
- Without disconnecting the PCM connectors, remove the PCM and harness from the air cleaner housing. Disconnect the PCM electrical connectors.