For 1990-2009 cars
Courtesy Switch: The scan tool displays ON/OFF. The input of the courtesy switch is displayed as ON when the interior lamp switch is in the ON.
Delay Interior Output: The scan tool displays ON/OFF. This output of the BCM is displayed as ON, if the BCM is awake i.e. ignition ON or BCM input activity.
Door Jamb Switch: The scan tool displays ON/OFF. The input of the door jamb switch is displayed as ON when the any door is open.
D.R.L. Output: The scan tool displays ON/OFF. The DRL output is displayed as ON when the headlamps switch is OFF with the ignition in run and the transmission out of park.
Exterior Lamp Output : The scan tool displays ON/OFF. This output of the BCM is displayed as ON when the ignition is in the RUN position or when the ignition is in the OFF position with the headlamp switch in PARK.
Headlamp Switch: The scan tool displays ON/OFF. The input of the headlamp switch is displayed as ON when the headlamp switch is in the HEAD position.
Highbeam Switch: The scan tool displays ON/OFF. This input to the BCM is displayed as ON, if the high beam switch is in the ON position or flash to pass switch is ON.
High Beam Output: The scan tool displays ON/OFF. This output of the BCM is displayed as ON when the headlamp switch is in the HEAD position and the high beam switch is in the ON position or flash to pass switch is ON.
Headlamp Required Output: The scan tool displays ON/OFF. This output of the BCM is displayed as ON, if the ambient light sensor detects night, the headlamp switch is in the OFF position, and the twilight sentinel switch is OFF.
Interior Lamp Output: The scan tool displays ON/OFF. This output of the BCM is displayed as ON, if the courtesy lamps are illuminated as during illuminated entry or when the interior lamp switch is in the On position.
Low Beam Output: The scan tool displays ON/OFF. This output of the BCM is displayed as ON if the headlamp switch is in the HEAD position or the twilight sentinel feature is activated.
Park Lamp Switch: The scan tool displays ON/OFF. This input of the BCM is displayed as ON, if the headlamp switch is in the PARK position.
Park Position Input: The scan tool displays In Park/Out of Park. This input of the BCM is displayed as Out of Park, if the transmission is shifted out of park.
Park Lamp Relay Output: The scan tool displays ON/OFF. This output of the BCM is displayed as ON, if the headlamp switch is in the PARK position.
Trunk Jamb Switch: The scan tool displays ON/OFF. This input of the BCM is displayed as ON, if the rear compartment lid is opened.
Twilight Lamp Output: The scan tool displays ON/OFF. This output of the BCM is displayed as ON, if the twilight sentinel switch is in the OFF position.
Twilight Sensor Voltage: The scan tool displays voltage. This input of the BCM is displayed as 0.0 volts in low light conditions and 4.5 volts in daytime conditions.