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Diagnostic Fault Information

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. 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
B+ 1 1 - -
A/C Relay Coil Side Supply Voltage 1 1 - -
Ignition 1 1 1 - -
A/C Compressor Clutch Relay Control P0645 P0645 P0645 -
A/C Relay Coil Side Ground - 1 - -
1. A/C Compressor Inoperative
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