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.