GM Service Manual Online
For 1990-2009 cars only
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 BCM over class 2 lines.

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

GEN Lamp Command: The scan tool displays On or Off. The scan tool displays the status of the charge indicator as commanded by the PCM.

GEN L-Terminal Signal Command: The scan tool displays On or Off. The scan tool displays the status of the GEN L-Terminal signal.

Hood Ajar Switch: The scan tool displays Ajar or Closed. The scan tool displays Closed when the hood is closed. The scan tool display Ajar when the hood is open.

Idle Boost Level: The scan tool displays the current engine idle boost level in amps as commanded by the PCM.

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.

Remote Start Attempts: The scan tool displays 0-2 Counts. The scan tool displays the actual number of remote start attempts on the current ignition cycle.

Remote Start Disable A: The scan tool displays BTSI Fault, Theft Mode, Invalid, Hazard On, Hood Ajar, Hood Fault, Ignition, Ext. Crank or None. The scan tool displays BTSI Fault if there is a BTSI DTC. The scan tool displays Theft Hazard On if the hazard lights are in the ON position. The scan tool displays Hood Ajar if the hood is opened. The scan tool displays Hood Fault if there is a hood ajar switch DTC. The scan tool displays Ext. Crank if the starter has turned over the engine for 30 seconds and the engine has not started.

Remote Start Disable B: The scan tool displays Key in Ignition, Battery Voltage, Abort, Power Mode, Invalid or None. The scan tool displays Key in Ignition if the key is in the ignition. The scan tool displays Battery Voltage if the battery voltage is to low to support the Remote Vehicle Start (RVS) function. The scan tool displays Abort if the RVS function has been aborted. The scan tool displays Power Mode if the ignition switch is already in the RUN position.

Remote Start Equipped: The scan tool displays Enable or Disable. The scan tool displays Enable when the remote start function is turned On. The scan tool displays Disable when the remote start function is turned Off.

Remote Starts Remaining: The scan tool displays 0-2 Counts. The scan tool displays the amount of remote start attempts that are remaining. There is a maximum of 2 starts per is ignition cycle.

Remote Start Request: The scan tool displays Yes or No. The scan tool displays No when the has been 0 requests for the remote start function. The scan tool displays Yes when in a current remote start event.

Remote Start Timer: The scan tool displays 0-59 Counts. The scan tool counts down from a 10 minute timer. Each Count that counts off of the timer is approximately 10 seconds of actual time.

Run/Crank Relay: The scan tool displays On or Off. The scan tool display actual state of the Run/Crank relay. It will display On when in a remote start event.

Run/Crank Relay Command: The scan tool displays On or Off. The scan tool displays the commanded state of the Run/Crank relay.

Starter Relay Circuit History: The scan tool displays OK/Open/Short/Invalid State. The scan tool displays the state of the starter relay circuit history.

Starter Relay Command: The scan tool displays On or Off. The scan tool displays Off until engine start has been requested, then it reads On.