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Home >> GMC >> 2002 >> C3500 HD 6.5 F, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 6.5L >> Repair Instructions >> Powertrain Control Module (PCM) Replacement >> Removal Procedure
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Removal Procedure

CAUTION: Refer to BATTERY DISCONNECT CAUTION .
  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.

    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.
Fig 1: Powertrain Control Module (PCM) & Connectors
G01599433Courtesy of GENERAL MOTORS CORP.
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