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Home >> Cadillac >> 2005 >> Escalade EXT >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 4.8L, 5.3L & 6.0L - Introduction >> Repair Instructions >> Powertrain Control Module (PCM) Replacement >> Installation Procedure
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Installation Procedure

    Fig 1: View Of PCM
    GM814119Courtesy of GENERAL MOTORS CORP.
  1. Install the PCM.

    Ensure that the mounting tabs are engaged.

  2. Secure the spring latch to the PCM.
    3. Fig 2: View Of PCM Electrical Connectors & Bolts
    GM814117Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Connect the PCM electrical connectors.
  4. Tighten the PCM electrical connector bolts (2).

    Tighten:  Tighten the bolts to 8 N.m (71 lb in).

    5. Fig 3: View Of PCM Cover & Mounting Bracket
    GM814118Courtesy of GENERAL MOTORS CORP.
  5. Install the PCM cover.

    Ensure the mounting tabs are engaged into the mounting holes in the cover.

  6. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
  7. If a NEW PCM was installed, program the PCM. Refer to Control Module References in Computer/Integrating Systems.
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