Circuit Description
WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The Cruise Resume/Accel switch is an input to the throttle actuator control (TAC) Module. This cruise control information is supplied to the PCM via serial data. This allows the PCM and TAC module to control and hold a requested speed. The Cruise Resume/Accel switch sends an ignition positive voltage signal to the TAC module when the switch is applied. This DTC sets if the TAC module senses a voltage on the Resume/Accelerate switch signal circuit when voltage is not expected.