Body Control Module (BCM)
Ignition 0: Displays 0.0-25.5 V.
This parameter is the system voltage measured by the BCM at the BCM battery
input.
Ignition 1: Displays 0.0-25.5 V.
This parameter is the system voltage measured by the BCM at the BCM ignition 1
voltage input.
Park (BTSI) Relay: Displays indicates ON when the body
control module applies a ground to the automatic transmission shift lock
control solenoid.