Conditions for Running the DTC
WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
- The control module runs the program to detect an internal fault when the key is ON.
- Ignition voltage is 8-18 volts.
- DTC U1817 is not set.