Data

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

Dimming Potentiometer: 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 backlighting based on the position of the instrument panel (I/P) dimmer switch, thumbwheel. The scan tool displays 0 percent when the headlamp switch is in the OFF position and the daytime running lamps (DRL) are ON or the I/P dimmer switch is in the FULL DIM position. The scan tool displays 100 percent when either the headlamps or park lamps are activated and the I/P dimmer switch is in the FULL BRIGHT position.

Dimming Potentiometer R: The scan tool displays the reference voltage to the dimming potentiometer. this voltage value is 5.0 volts.

Inputs

Accessory: The scan tool displays the position of the ignition switch. The scan tool displays On when the ignition switch is in the ACCESSORY, RUN or CRANK position.

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

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 BCM uses this data in controlling the operation of the courtesy lamps.

Driver Door Ajar Sw.: The scan tool displays Off when the driver door is fully closed or On when the door is open or ajar.

DRL Disable Switch: The scan tool displays the position of the DRL disable switch. The scan tool displays On when the switch is activated requesting the BCM to override the normal DRL activation inputs and deactivate the 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.

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 Unlock: The scan tool displays the position of the ignition switch. The scan tool displays Yes when the ignition switch is not in the locked position.

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.

Key in Ignition: The scan tool displays Yes when the key has been inserted into the ignition switch. The scan tool displays No after the key has been removed.

Park Brake Switch: The scan tool displays the position of the park brake pedal. The scan tool displays Set when the park brake is engaged closing the switch. The BCM uses this data in controlling the operation of the park brake indicator, the reminder chime feature and the DRL system.

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.

Passenger/Rear Cargo Do: The scan tool displays Closed when the door is fully closed or Ajar when the door is open or ajar.

Run/Crank: 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.

Outputs

Backup Lamps: The scan tool displays the commanded state of the BCM which directly supplies battery positive voltage to the backup lamps. The scan tool displays On when the BCM activates the backup lamps upon receiving a backup lamp request signal from the powertrain control module (PCM).

Daytime Running Lamps: The scan tool displays the commanded state of the DRL . The scan tool displays On when the BCM signals the turn/hazard flasher module to illuminate the DRL.

Headlamps On Indicator: The scan tool displays the commanded state of the BCM which directly supplies battery positive voltage to the headlamps on indicator. The scan tool displays On when the BCM activates the headlamps on indicator upon receiving a headlamp request signal from the headlamp switch.

High Beams: 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 activating the high beam headlamps.

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

Low Beam Output: The scan tool displays the commanded state of the low beam relay. The scan tool displays On when the BCM allows the low beam relay to go to ground activating the high beam headlamps.

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

RAP Relay: The scan tool displays the commanded state of the retained accessory power (RAP) relay. The scan tool displays On when the BCM allows the relay to go to ground.