Circuit/System Verification
WARNING: This page is about a different car, the 2008 Isuzu i-370, 2008 Isuzu i-290, 2008 GMC Canyon, and 2008 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
Ignition ON, Cruise Control Switch ON, verify that the Cruise Set/Coast Switch and Resume/Accel switch parameters read Inactive (OFF). The switch parameter should change to Active (ON) and back to Inactive (OFF) as the appropriate switch is pressed and released.