Data

Backlight Dimming: The scan tool displays the duty cycle of the pulse width modulated (PWM) signal distributed by the body control module (BCM) to the PWM controlled instrument panel (I/P) backlighting based on the position of the I/P dimmer switch, thumbwheel.

Battery Voltage: The scan tool displays the battery system voltage received by the module.

Dimming Input: The scan tool displays the voltage value indicating the position of the I/P dimmer switch, thumbwheel. The scan tool displays 4 volts when the I/P dimmer switch is in the FULL DIM position. The scan tool displays 0 volts when the I/P dimmer switch is in the FULL BRIGHT position.

Dimming Potentiometer: The scan tool displays the duty cycle of the PWM signal distributed by the BCM to the PWM controlled door switch backlighting based on the position of the I/P dimmer switch, thumbwheel.

Indicator Dimming: The scan tool displays the duty cycle of the PWM signal distributed by the BCM to the PWM controlled I/P backlighting based on the position of the I/P dimmer switch, thumbwheel.

Light Sensor: The scan tool displays the output voltage of the ambient light sensor (ALS) based on the intensity of light detected. As the light intensity increases, the sensor displayed voltage decreases. In the LIGHT state, a low voltage, not less than 1.75 volts, is present and the daytime running lamp (DRL) will be ON. In the DARK state, a high voltage, up to 4.9 volts, is present and the headlamps will be ON.

Memory Switch Backlight: The scan tool displays the duty cycle of the PWM signal distributed by the BCM to the PWM controlled memory switch backlight based on the position of the I/P dimmer switch, thumbwheel.

Window Switch Backlight: The scan tool displays the duty cycle of the PWM signal distributed by the BCM to the PWM controlled window switch backlight based on the position of the I/P dimmer switch, thumbwheel.

Inputs

Courtesy Lamp Relay: The scan tool displays the State of the courtesy lamp relay. The scan tool displays ON when the switch is turned ON. The scan tool also displays On when the park lamp input indicates On.

Courtesy Lamp Switch: The scan tool displays the position of the courtesy lamp switch. The scan tool displays Active when the switch is turned ON. The body control module (BCM) uses this data in controlling the operation of the courtesy lamps.

Dimming Enable: The scan tool displays if the dimming feature of the module is enabled or disabled. The scan tool displays On when the dimming feature of the module is enabled.

Door Ajar Switch: The scan tool displays Off when the drivers door is fully closed or On when the drivers door is open or ajar.

DRL Disable Switch: The scan tool displays the position of the DRL disable switch. The scan tool displays Active when the DRL disable switch is pressed and Inactive when released. The BCM uses this data in controlling the operation of the automatic lamp control (ALC) and DRL.

Flash to Pass Switch: The scan tool displays the position of the flash to pass switch. The scan tool displays On when the switch is pulled to activate the high beams momentarily while the switch is held.

Front Wipers Active: The scan tool displays the position of the front wiper switch. The scan tool displays Yes when the front wiper switch is in the ON position. The BCM uses this data in controlling the operation of the ALC.

Headlamp Switch: The scan tool displays the position of the headlamp switch. The scan tool displays Active when the headlamp switch is in the ON position. The BCM uses this data in controlling the operation of the headlamps.

High Beam Switch: The scan tool displays the position of the high beam switch. The scan tool displays On when the switch is used to activate the high beams.

Ignition 0: The scan tool displays the position of the ignition switch. The scan tool displays On when the ignition switch is in the RUN or CRANK position.

Ignition 1: The scan tool displays the position of the ignition switch. The scan tool displays On when the ignition switch is in the RUN or CRANK position.

Ignition Accessory: The scan tool displays the position of the ignition switch. The scan tool displays Active when the ignition switch is in the ACCESSORY position only.

Inadvertent Power Relay: The scan tool displays the state of the inadvertent power battery rundown protection feature of the BCM. The scan tool displays On when all inadvertent power circuits are functioning normally.

Interior Lamp Defeat Switch: The scan tool displays the position of the courtesy/dome lamp override switch. The scan tool displays On when the switch is activated requesting the BCM to override the normal interior lamp activation inputs and deactivate the interior lighting.

Left Rear Door Ajar Sw.: The scan tool displays Off when the left rear door is fully closed or On when the door is ajar or open.

Park Lamp Switch: The scan tool displays the position of the park lamp switch. The scan tool displays Active when the park lamp switch is in the ON position. The BCM uses this data in controlling the operation of the park lamps.

Right Rear Door Ajar Switch: The scan tool displays Off when the right rear door is fully closed or On when the right rear door is open or ajar.

Outputs

Backup Lamps: The scan tool displays the commanded state of the relay. The scan tool displays On when the body control module (BCM) allows the relay to go to ground to activate the lamps.

Daytime Running Lamps: The scan tool displays the commanded state of the daytime running lamps (DRL) relay. The scan tool displays Active when the BCM allows the DRL beam relay to go to ground to activate the DRL.

Headlamps On Indicator: The scan tool displays the commanded state of the headlamps. The scan tool displays On when the BCM allows the headlamps On.

High Beam Relay: The scan tool displays the commanded state of the high beam relay. The scan tool displays On when the BCM allows the high beam relay to go to ground to activate the high beam headlamps.

Park Lamp Relay: The scan tool displays the commanded state of the relay. The scan tool displays On when the BCM allows the relay to go to ground to activate the lamps.