GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Chevy C Silverado - 2WD 🢒 Engine 🢒 Engine Controls - 4.8L, 5.3L, and 6.0L 🢒 Electronic Throttle Actuator Control Module Replacement

Removal Procedure

    Object Number: 858196 Size: SH
  1. Disconnect the instrument panel (I/P) harness electrical connector (2).

    2. Object Number: 871922 Size: SH
  2. Release the red connector position assurance (CPA) retainer.
  3. Disconnect the engine wiring harness electrical connector (1).

    4. Object Number: 855736 Size: SH
  4. Remove the throttle actuator control (TAC) module nuts.
  5. Remove the TAC module.

Installation Procedure

    Object Number: 855736 Size: SH
  1. Install the TAC module.

    2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  2. Install the TAC module nuts.

    3. Tighten
    Tighten the nuts to 9 N·m (80 lb in).


    Object Number: 871922 Size: SH
  3. Connect the engine wiring harness electrical connector (1).
  4. Install the red CPA retainer.

    5. Object Number: 858196 Size: SH
  5. Connect the I/P harness electrical connector (2).