Action Taken When the DTC Sets

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 Service 4-Wheel Steer indicator on IPC will be displayed.
The code is displayed on the scan tool as DTC B3593.
The output to the motor is ramped down slowly at a rate of 1 degree/second back to center and held.
The rear wheels will be returned to the centered position.