Circuit Description
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Ground is continuously supplied to the low side of the ABS pump motor. The EBCM activates the ABS pump by supplying battery voltage to the high side of the motor.