Diagnostic Aids
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Condition could be caused by a short to ground or voltage, high or low resistance in circuits 2161, 2162, 2163 or 2164. A short between circuits 2161 and 2162 or 2163 and 2164 could also cause condition.
NOTE:
For circuit number and wire color identification, see WIRING DIAGRAMS .