LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1554 (HVAC System - Automatic) >> Diagnostic Information and Procedures >> DTC P0645 >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. 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
scientia non olet · About LEMON Manuals