Diagnostic Fault Information

WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

Circuit	Short to Ground	Open/High Resistance	Short to Voltage	Signal Performance
Cellular Telephone Voice Signal	1	1	1	-
Cellular Telephone Voice Low Reference	-	1	-	-
1. No (or Noisy) OnStar® Audio