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Home >> Chevrolet >> 2005 >> Chevy Express G3500, Van Passenger Extended >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 4.8L, 5.3L, And 6.0L - Introduction >> Repair Instructions >> Powertrain Control Module (PCM) Replacement >> Installation Procedure

Installation Procedure

    Fig 1: View Of Powertrain Control Module (PCM)
    GM1204499Courtesy of GENERAL MOTORS CORP.
  1. Install the PCM to the PCM mounting tray.
  2. Secure the spring latch to the PCM.
    3. NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Connect the PCM connectors to the PCM.

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

  4. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
  5. If a new PCM is being installed, program the PCM. Refer to Control Module References in Computer/Integrating Systems.
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