Scan Tool Data Definitions

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

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.
Electronics Battery FD: The scan tool displays 0-20 Volts. The scan tool displays the voltage as received on the battery positive voltage E circuit of the BCM.
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 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.
Inadvertent Power Relay: The scan tool displays On/Off. The scan tool displays On when the key is in the ACCY. or ON position.
Load Management Relay: The scan tool displays On/Off. The scan tool displays On unless the BCM has entered Load Management or Idle Boost.
Load Shed: The scan tool displays None/Load 1/Load 2/Load 3. The scan tool displays None unless Load management has been entered.
Starter Enable Relay Circuit Status: The scan tool displays Fault/OK/Invalid State. The scan tool displays Fault until the ignition is placed into the START position then OK is displayed.
Starter Relay Command: The scan tool displays ON/OFF. The scan tool displays Off until the ignition is placed into the CRANK position, then it reads On.