Body Control Module (BCM)

Battery Voltage Signal: The scan tool displays 0 - 20 volts. The scan tool displays the voltage as received by the body control module (BCM).

Brake Lamp Cmd.: The scan tool displays On and Off. The scan tool displays the status of the brake switch to the BCM.

BTSI Solenoid: The scan tool displays On and Off. The scan tool displays the status of the BTSI solenoid to the BCM.