Conditions for Setting the DTC
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.
- The instrument panel lamps dimming control circuit is shorted to ground.
- The LED dimming supply circuit is shorted to ground.
- There is a loss of the I/P fuse block TBC 2 A fuse battery supply voltage to the BCM for 1 second.