Conditions for Setting the DTC
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- The HVAC control module detects that the A/C pressure is less than 2.17 psi sets DTC P2518 12.
- The HVAC control module detects that the A/C pressure is more than 478 psi sets DTC P2518 11.