Conditions for Setting the DTC
WARNING: This page is about a different car, the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- The system will test the motor circuits by reading the voltage on each circuit.
- If the system detects a problem with the circuits, the DTC is logged.
- The transfer case shift control module senses a high voltage in the Motor Control A or Motor Control B circuits when a low voltage is expected.