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Home >> GMC >> 2001 >> C3500 HD 6.5 F, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 6.5L (L65) (Introduction) >> Repair Instructions >> Powertrain Control Module (PCM) Replacement >> Removal Procedure
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Removal Procedure

    Fig 1: PCM Connectors
    GM26961Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.
  1. Remove the negative battery cables.
  2. Remove the PCM from the passenger compartment behind the glove box.
  3. Remove the connectors from the PCM.
    4. IMPORTANT: To prevent possible electrostatic discharge to the PCM, do not touch the component leads, and do not remove the integrated circuit from the carrier.
  4. Remove the PCM mounting hardware.
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