Powertrain Control Module: Removal

WARNING: This page is about a different car, the 2003 GMC Safari and 2003 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.

Ensure ignition is off. Disconnect negative battery cable. Locate PCM in left side of engine compartment, below battery. Disconnect harness connectors from PCM. See Fig 1 and Fig 2 . Release the spring latch from the PCM. Lift the PCM from the mounting tray. Remove PCM from vehicle.

Fig 1: Locating PCM & Identifying PCM Connectors

Courtesy of GENERAL MOTORS CORP.

Fig 2: Removing/Installing PCM

Courtesy of GENERAL MOTORS CORP.