For 1990-2009 cars
Commanded GEN: The scan tool displays On/Off. The scan tool displays On when the module commands the generator ON.
Commanded Starter: The scan tool displays Disabled/Enabled. The scan tool displays Enabled when all Starting parameters are confirmed and the PCM grounds the crank relay.
Starter Enable Relay: The scan tool displays OK/Fault. The scan tool display OK when the module receives battery positive voltage on the CRANK relay control circuit or the ignition is in the START position.
VTD Fuel Disable: The scan tool displays Active/Inactive. The scan tool displays Inactive unless the Vehicle Theft Deterrent (VTD) has been activated.