Conditions for Running the DTC
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.
- Voltage supplied to the rear wheel steering control module is in the normal operating voltage range of approximately 9 to 16 volts.
- The rear wheel steering control module operation, the vehicle power mode, or the ignition switch position require serial data communication to occur.