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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1316 (Transfer Case - NVG 246-NP8 (Two Speed Automatic)) >> Repair Instructions >> Transfer Case Shift Control Module Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
  1. Move the electrical harness to the left side in order to make room to install the transfer case shift control module.
    2. Fig 1: Transfer Case Shift Control Module
    GM676699Courtesy of GENERAL MOTORS CORP.
  2. Install the transfer case shift control module so that the electrical connector ports are to the right or pointing towards the instrument cluster.
  3. While installing the transfer case shift control module rotate clockwise until the module is in place and the electrical connector ports are facing outwards.
    4. Fig 2: Electrical Harness Retainer
    GM676224Courtesy of GENERAL MOTORS CORP.
  4. Install the electrical harness retainer to the IP support beam.
  5. Connect the 2 electrical connectors to the transfer case shift control module.
    6. Fig 3: Lamp Switch, 4WD Shift Buttons, Cargo Lamp & Air Deflector Louver Assembly
    GM676695Courtesy of GENERAL MOTORS CORP.
  6. Install the lamp switch, 4WD shift buttons, cargo lamp and air deflector louver assembly the vehicle.
  7. Connect all the electrical connectors to the lamp switch, cargo lamp and 4WD shift buttons assembly.
  8. Install the lamp switch, 4WD shift buttons, cargo lamp and air deflector louver assembly in place.
  9. Install the IP trim bezel. Refer to BEZEL REPLACEMENT - IP CLUSTER .
  10. Start the engine and test the automatic transfer case system for proper shift operation.
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