Scan Tool Data Definitions
SCAN TOOL DATA DEFINITIONS
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 On/Off. The scan tool displays Off until the engine is running, then the powertrain control module (PCM) supplies then the percentage value varies depending on electrical loads
Ignition 1: The scan tool displays 0-20 Volts. The scan tool displays the voltage as received on the Ignition 1 circuit to the PCM.