Conditions for Setting the DTC

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

When hall 1, hall 2, and hall 3 circuits have 12 volts as their output, simultaneously, the rear steering motor is not in a recognized, valid position by the rear wheel steering module.
When hall 1, hall 2, and hall 3 circuits have 0 volts as their output, simultaneously, the rear steering motor is not in a recognized, valid position by the rear wheel steering module.
The hall sensor supply circuit is open.
The hall sensor ground circuit is open.