Scan Tool Data Definitions

WARNING: This page is about a different car, the 2006 Pontiac Torrent and 2006 Chevrolet Equinox. 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 body control module (BCM).
Crank Request Signal: The scan tool displays Yes/No. The scan tool displays Yes when the powertrain control module (PCM) receives a crank request.
Generator L-Terminal Signal Command: The scan tool displays On/Off. The scan tool displays Off until the engine is running, then the PCM supplies then the percentage value varies depending on electrical loads
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 PCM.
Starter Relay Command: The scan tool displays On/Off. The scan tool displays Off until the PCM commands the starter relay On.
TR Sw.: The scan tool displays Invalid, Neutral, Drive, Park, Low, Reverse and Intermediate. The scan tool displays the position of the transaxle switch.