Action Taken When the DTC Sets

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.

If the horn relay control circuit is shorted to ground the horns will remain ON at all times.
If the horn relay control circuit is open the horn will only work with the horn button on the steering wheel.
The BCM stores DTC B2752 in memory.