LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Hummer >> 2006 >> H3 Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - 3.5L - Introduction (2 Of 2) >> Repair Instructions >> Powertrain Control Module (PCM) Replacement >> Installation Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Installation Procedure

  1. Install the PCM (1) into the PCM mounting bracket, allowing the tabs to fully engage.
    2. Fig 1: Removing/Installing PCM
    GM1560061Courtesy of GENERAL MOTORS CORP.
  2. Connect the body wiring harness PCM connector to the PCM.
    3. Fig 2: Locating PCM & Body Wiring Harness PCM Connector
    GM1560063Courtesy of GENERAL MOTORS CORP.
  3. Engage the CPA retainer.
  4. Connect the engine wiring harness PCM connectors to the PCM.
    5. Fig 3: Locating PCM & Engine Wiring Harness PCM Connectors
    GM1560062Courtesy of GENERAL MOTORS CORP.
  5. Engage the CPA retainer.
  6. If a NEW PCM was installed, the PCM must be programmed. Refer to Control Module References .
scientia non olet · About LEMON Manuals