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.
With the scan tool, access the ABS special functions menu and perform the Solenoid Test and ABS Motor test. The pump motor and solenoids should function without setting DTCs.