Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Safari and 2004 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Refer to PCM AND ESD NOTICE in Cautions and Notices.

NOTE: In order to prevent internal damage to the PCM, the ignition must be OFF when disconnecting or reconnecting the PCM connector.

Disconnect the PCM harness connectors (4).

Fig 1: Identifying PCM Components
Courtesy of GENERAL MOTORS CORP.
Release the spring latch (3) from the PCM (1).
Lift the PCM from the PCM mounting tray (2).

Fig 2: View Of PCM Mounting Tray
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Remove the PCM (1) from the engine compartment.