GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Chevrolet
🢒
2002
🢒
Impala
🢒
Body and Accessories
🢒
Horns
🢒 Scan Tool Data Definitions
Horn Relay:
The scan tool displays the state of the horn relay. The scan tool displays ACTIVE when the BCM senses that the horn relay is being commanded ON by the relay coil being grounded.