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 between circuits 1363 and 5055 or 1363 and 5056. An open or high resistance in any circuit could also cause condition.
NOTE:
For circuit number and wire color identification, see WIRING DIAGRAMS .