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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 >> Installation Procedure
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Installation Procedure

  1. Install the PCM (1) to the PCM mounting tray (2).
    Fig 1: View Of PCM Mounting Tray
    GM718097Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  2. Secure the spring latch (3) to the PCM (1).
  3. Connect the PCM connectors (4) to the PCM (1).

    Tighten:  Tighten the PCM connector end fasteners to 8 N.m (71 lb in).

    Fig 2: Identifying PCM Components
    GM718096Courtesy of GENERAL MOTORS CORP.
  4. If a new PCM is being installed, program the PCM. Refer to Service Programming System (SPS) .
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