Diagnostic Aids
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 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 .