Conditions for Running the DTC
WARNING: This page is about a different car, the 2017 GMC Yukon XL, 2017 GMC Yukon, 2017 Chevrolet Tahoe, and 2017 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.
- The TCM runs the program to detect an internal condition at key ON. The only requirements are voltage and ground.
- Ignition ON.
- System voltage 10.5 - 18.0 V