Scan Tool Data Definitions

WARNING: This page is about a different car, the 2005 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

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 BCM.
Generator F-Terminal (L66): The scan tool displays the percentage of the field current.
Generator L-Terminal (L61): The scan tool displays Enabled/Disabled. The scan tool displays Disabled until the engine is running, then the ECM supplies then the percentage value varies depending on electrical loads.
Generator L-Terminal (L66): The scan tool displays Active/Inactive. The scan tool displays Inactive until the engine is running, then the PCM supplies then the percentage value varies depending on electrical loads.
Ignition 1 (L61): The scan tool displays 0-20 Volts. The scan tool displays the voltage as received on the Ignition 1 circuit to the ECM.
Ignition 1 (L66): The scan tool displays 0-20 Volts. The scan tool displays the voltage as received on the Ignition 1 circuit to the PCM.