Diagnostic Aids
WARNING: This page is about a different car, the 2005 GMC Yukon XL, 2005 Chevrolet Suburban, and 2005 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Inspect the KS for proper installation. A KS that is loose or over torqued may cause either DTC to set.
For an intermittent, refer to Intermittent Conditions .