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Home >> GMC >> 2005 >> Jimmy Part Time, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - (Introduction) >> Repair Instructions >> Powertrain Control Module (PCM) Replacement >> Removal Procedure
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Removal Procedure

    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 negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
    2. Fig 1: View Of PCM Retention Bar & Retainer
    GM352488Courtesy of GENERAL MOTORS CORP.
  2. Move the PCM retention bar and retainer away from the PCM.
    3. Fig 2: View Of PCM
    GM352489Courtesy of GENERAL MOTORS CORP.
  3. Remove the PCM from the PCM mounting bracket.
    4. Fig 3: View Of PCM Electrical Connectors
    GM66513Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the PCM electrical connectors.
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