Body Control Module (BCM)

Battery 1: Displays 0.0-25.5 V. This parameter is the system voltage measured by the BCM at the BCM battery input.

Power Model: Displays OFF/ACCY/RUN/CRANK. This parameter displays the ignition switch position.

BTSI: Displays LOCKED/UNLOCKED. This parameter indicates LOCKED when the mechcanical lock is engaged preventing an inadvertent shift out of the PARK position. The Display indicates UNLOCKED when BCM supplies power to the shift lock control solenoid.