Scan Tool Data Definitions

Battery Voltage:  The scan tool displays 0-20 Volts. The scan tool displays the voltage as received on the battery positive voltage circuit of the Module or the 72-08 battery voltage message from the BCM over class 2 lines.

Crank Request Signal:  The scan tool displays Yes/No. The scan tool displays No until the ignition is placed into the START position then Yes is displayed.

GEN F-Terminal Signal:  The scan tool displays 0%-100%. The scan tool displays 0%-10% until the engine is started and the PCM receives a signal from the generator then OK is displayed. GEN L-Terminal Signal Command: The scan tool displays On/Off. The scan tool displays Off until the engine is running, then the PCM supplies a 5 volt reference signal  for the generator regulator. 

IMS:  The scan tool displays Park, Park/Reverse, Reverse, Reverse/Neutral, Neutral, Neutral/Drive 4, Drive 4, Drive 4/Drive 3, Drive 3, Drive 3/Drive 2, Drive 2, Drive 2/Drive 1, Drive 1. The scan tool displays the physical position of the Automatic Transaxle Fluid Pressure Manual Valve Position Switch, Including those positions that are in-between gears.

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 ignition is placed into the Start position, then it reads On until an engine run signal is received by the PCM.