Diagnostic Aids

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.

This DTC may be stored as a history DTC without affecting the operation of the module.
If stored only as a history DTC and not retrieved as a current DTC, do not replace the module.
If this DTC is retrieved as both a current and history DTC, replace the module that set the DTC.