GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2002
🢒
Envoy - 4WD
🢒
Body and Accessories
🢒
Horns
🢒 Scan Tool Data Definitions
Battery Voltage:
The scan tool displays the current state of the battery in volts.
Horn Output:
The scan tool displays On/Off to indicate the current state of the horn as commanded by the body control module (BCM).