Conditions for Setting the DTC
WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- The system monitors the voltage on the 2 high indicator control circuit.
- If the system detects a voltage of 2 volts or less for 1.5 seconds when the 2 high indicator is not commanded, the DTC is logged.
- If the system detects a voltage of 4.5 volts or more when the 2 high indicator is commanded, the DTC is logged.