Action Taken When the DTC Sets

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.

The Service 4 Wheel Steer indicator in IPC will be displayed.
The output to the motor is ramped down slowly, at a rate of 2 ° per second, to 0 ° and held.
The code is displayed on the scan tool as DTC U1305.
The rear wheel steering control module inhibits the setting of all other Class 2 DTCs.
The rear wheel steering control module uses default values for all parameters received on the Class 2 serial data circuit.