Conditions for Setting the DTC
WARNING: This page is about a different car, the 2009 GMC Yukon, 2009 Chevrolet Tahoe, 2009 Chevrolet Suburban, and 2009 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- The system monitors the voltage on the AWD indicator control circuit.
- The TCCM detects 1.6 V or less for 1.5 seconds when the AWD indicator is commanded ON.
- The TCCM detects 3.4 V or greater when the AWD indicator is commanded OFF.