GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2006 🢒 GMC Sierra Denali 🢒 Engine 🢒 Engine Controls - 8.1L 🢒 Electronic Throttle Actuator Control Module Replacement

Removal Procedure

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

    3. Object Number: 871922 Size: SH
  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.

    6. Object Number: 878173 Size: SH
  6. If equipped with a regular production option (RPO) ML6 manual transmission, unsnap the TAC module from the bracket.

    7. Object Number: 878174 Size: SH
  7. If equipped with a RPO ML6 manual transmission, remove the TAC module bracket nuts.
  8. Remove the TAC module bracket, if necessary.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 878174 Size: SH
  1. If equipped with a RPO ML6 manual transmission, install the TAC module bracket, if necessary.
  2. Install the TAC module bracket nuts.

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


    Object Number: 878173 Size: SH
  3. If equipped with a RPO ML6 manual transmission, snap the TAC module to the bracket.

    4. Object Number: 855736 Size: SH
  4. Install the TAC module.
  5. Install the TAC module nuts.

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


    Object Number: 871922 Size: SH
  6. Connect the engine wiring harness electrical connector (1).

    7. Object Number: 858196 Size: SH
  7. Connect the I/P harness electrical connector (2).
  8. Install the CPA retainer (1).
  9. Refer to Control Module References for programming and setup information.