Scan Tool Data Definitions

Battery Voltage Signal: The scan tool displays 0-20 Volts. The scan tool displays the voltage as received by the module or the 72-08 battery voltage message from the body control module (BCM) over class 2 lines.
Clutch Start Switch (If equipped): The scan tool displays Released/Applied. The scan tool displays the position status of the clutch start switch.
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 engine control module (ECM) receives a signal from the generator then OK is displayed.
GEN L-Terminal Circuit Status: The scan tool displays Incomplete, Short Gnd / Open, Short to B+ or OK. The scan tool displays the status of the GEN-L Terminal circuit.
GEN L-Terminal Signal Command: The scan tool displays On/Off. The scan tool displays Off until the engine is running, then displays On when the engine is running.
Idle Boost Level: The scan tool displays amps. The scan tool displays the current engine idle boost level as commanded by the ECM.
IMS: The scan tool displays Invalid, Drive 3\Drive 2, Drive 2, Reverse\Neutral, Neutral, Drive 5, Park\Reverse, Park, Drive 3, Drive 4\Drive 3, Reverse, Park\Reverse, Drive 5\Drive 4 or Drive 4. The scan tool displays the position of the transmission range switch.
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 ECM.
Ignition Accessory Signal: The scan tool displays On/Off. The scan tool displays if the ignition 0 signal is On or Off.
PNP Switch (If equipped): The scan tool displays Park/Neutral or In Gear. The scan tool displays the position of the park neutral position (PNP) switch.
Run/Crank Relay: The scan tool displays On/Off. The scan tool display actual state of the Run/Crank relay.
Run/Crank Relay Command: The scan tool displays On/Off. The scan tool displays the commanded state of the Run/Crank relay.
Starter Relay Circuit Status: The scan tool displays Incomplete, Short Gnd / Open, Short to B+ or OK. The scan tool displays the status of the starter relay circuit.
Starter Relay Command: The scan tool displays On/Off. The scan tool displays Off until engine start has been requested, then it reads On.