Conditions for Running the DTC
WARNING: This page is about a different car, the 2003 GMC Yukon XL, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- The battery voltage must be 9-16 volts.
- Ignition switch in the RUN position.
- The Tow/Haul switch must be activated.