Conditions for Setting the DTC
WARNING: This page is about a different car, the 2006 GMC Yukon XL, 2006 Chevrolet Suburban, and 2006 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
One of the following conditions occur:
- The 4WD low circuit is closed, grounded, for greater than 7 seconds with a transfer case ratio of 0.95-1.05:1, for 1 occurrence.
- The 4WD low circuit is open for 2 seconds, with a transfer case ratio of 2.65-2.76:1 in 2 different commanded gears for 2 occurrences.