GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Cadillac
🢒
2007
🢒
STS
🢒
Body Systems
🢒
Horns
🢒 Scan Tool Data Definitions
Horn Relay Command:
The scan tool displays On/Off. The state that the body control module (BCM) has commanded for the horn relay is displayed.