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.

Powertrain Control Module (PCM)

Current Gear: Displays current gear position of the transmission

TCC Brake Switch: Displays ON or OFF status of the TCC Brake switch.

TR Sw. A/B/C/P: Displays LOW or HI for the state of each of the four inputs from the IMS. LOW displayed indicates a low voltage signal (0 volts) being monitored at the PCM. HI displayed indicates a high voltage signal (B+) being monitored at the PCM.