Scan Tool Output Controls

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Body Control Module (BCM)

Scan Tool Output Control	Additional Menu Selection(s)	Description
Horn	Miscellaneous Test	The BCM Energizes the horn relay for 5 seconds when you select On or until you select Off.