Removal & Installation

Turn ignition off. Disconnect negative battery cable. Locate PCM. See PCM LOCATION  table. See Fig 1 or Fig 2 . Remove any necessary components to gain access to PCM. Disconnect harness connectors from PCM. Remove PCM mounting bolts (if equipped). Remove PCM. To install, reverse removal procedure. Transfer any necessary components (i.e., knock sensor module, etc.) to new PCM before installation. Program replacement PCM using appropriate equipment and latest software. See PROGRAMMING in appropriate SELF-DIAGNOSTICS article.

Fig 1: Locating PCM (2.2L)

Courtesy of GENERAL MOTORS CORP.

Fig 2: Locating PCM (2.4L)

Courtesy of GENERAL MOTORS CORP.