Battery Status

The GM monitors KL R on a dedicated circuit. If the ignition is switched on and detected via the KL R circuit but the GM does not receive KL R status via the K Bus, the GM monitors the KL R voltage level. If after an additional 0.3 seconds there is no K Bus activity, the GM initiates an emergency running program.

A substitute value for vehicle speed is used to allow the GM to operate certain functions.

The emergency running program will terminate if the GM detects a vehicle speed or KL R status via the K bus.