Circuit Description
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The cruise control resume/accel switch is an input to the engine control module (ECM). The ECM monitors the cruise control resume/accel switch signal circuit in order to detect when the driver has requested to accelerate the set vehicle speed or to resume the cruise control system. The ECM module detects a voltage signal on the cruise control resume/accel switch signal circuit when the switch is applied. This DTC sets if the ECM detects that voltage is present on the cruise control resume/accel switch signal circuit for longer than 90 seconds.