Operation CHARM: Car repair manuals for everyone.

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.