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Home >> Chevrolet >> 2004 >> Astro Van Cargo, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 4.3L - Introduction >> Repair Instructions >> Powertrain Control Module (PCM) Replacement >> Removal Procedure
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Removal Procedure

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.
  1. Disconnect the PCM harness connectors (4).
    Fig 1: Identifying PCM Components
    GM718096Courtesy of GENERAL MOTORS CORP.
  2. Release the spring latch (3) from the PCM (1).
  3. Lift the PCM from the PCM mounting tray (2).
    Fig 2: View Of PCM Mounting Tray
    GM718097Courtesy of GENERAL MOTORS CORP.
  4. Remove the PCM (1) from the engine compartment.
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