Sierra 3500 4WD V8-6.0L VIN U (2004)
Electronic Throttle Control Module: Service and Repair
THROTTLE ACTUATOR CONTROL (TAC) MODULE REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the instrument panel (I/P) harness electrical connector (2).
2. Release the red connector position assurance (CPA) retainer.
3. Disconnect the engine wiring harness electrical connector (1).
4. Remove the throttle actuator control (TAC) module nuts.
5. Remove the TAC module.
INSTALLATION PROCEDURE