Body Control Module (BCM)

Battery Voltage:  Display indicates battery voltage. Measured in volts.

Brake to Shift Relay:  Displays indicates ON when the body control module a ground to the automatic transmission shift lock control solenoid A/T shift lock control circuit.

BTSI Output:  Display indicates ON when the Brake to Shift Relay is ON.

Ignition 1:  Display indicates ON when the ignition 1 input circuit of the module receives a battery signal from the ignition switch.

Park (BTSI) Output Feed:  Display indicates ON when the Brake to Shift Relay is ON.