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Home >> GMC >> 2004 >> Jimmy 2D Utility, Part Time, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 4.3L (Introduction) >> Repair Instructions >> Powertrain Control Module (PCM) Replacement >> Installation Procedure

Installation Procedure

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  1. Remove the replacement PCM from the packaging.
  2. Check the service number in order to make sure the service number is the same number as the defective PCM.
    3. Fig 1: View Of PCM Electrical Connectors
    GM66513Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Connect the PCM electrical connectors.

    Tighten:  Tighten the PCM electrical connectors screws to 8 N.m (71 lb in).

    4. Fig 2: View Of PCM
    GM352489Courtesy of GENERAL MOTORS CORP.
  4. Slide the PCM retainer into the PCM bracket slots.
    5. Fig 3: View Of PCM Retention Bar & Retainer
    GM352488Courtesy of GENERAL MOTORS CORP.
  5. Pull the PCM retention bar into position.
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