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 rear wheel steering control module controls a normally closed relay that shorts the motor phase leads. The relay is part of the rear wheel steering actuator motor assembly and cannot be serviced separately from the motor assembly. The motor assembly can be serviced separately from the rear wheel steering actuator.