GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2005 🢒 Envoy - 4WD 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 Liftgate Control Module Replacement

Removal Procedure
  1. Remove the liftgate trim panel. Refer to Liftgate Trim Panel Replacement .

    2. Object Number: 749979 Size: SH
  2. Disconnect the electrical connectors (3) from the module as necessary.
  3. Remove the bolts that retain the module to the liftgate.
  4. Remove the module from the liftgate.

Installation Procedure

    Object Number: 749979 Size: SH
  1. Install the module to the liftgate.

    2. Notice: Refer to Fastener Notice in the Preface section.

  2. Install the bolts that retain the module to the liftgate.

    3. Tighten
    Tighten the bolts to 10 N·m (89 lb in).

  3. Connect the electrical connectors (3) as necessary.
  4. Install the liftgate trim panel. Refer to Liftgate Trim Panel Replacement .
  5. Program the liftgate control module. Refer to Control Module References in Computer/Integrating Systems.