For 1990-2009 cars only
Battery 1: The scan tool displays 0-20 volts.
The scan tool displays the voltage as received on the battery positive voltage circuit
of the body control module (BCM).
Generator L-Terminal: The scan tool displays High/Low. The scan tool displays High any time the key is in the ON position.
Ignition 1 Signal: The scan tool displays 0-20 volts. The scan tool displays the voltage as received on the ignition 1 circuit to the engine control module (ECM).
Generator L-Terminal: The scan tool displays High/Low. The scan tool displays High any time the key is in the ON position.
Ignition 1 Signal: The scan tool displays 0-20 volts. The scan tool displays the voltage as received on the ignition 1 circuit to the engine control module (ECM).
