BCM Scan Tool Data Definitions
Front Wiper Switch: The scan tool displays ON or OFF. When the
 windshield wiper/washer switch is turned to the mist, wash, low, or high positions
 the scan tool displays ON. When the switch is turned to the delay positions from
 low the scan tool continues to display ON. Anytime the switch is in the off position
 the scan tool displays OFF.
Headlamp Wash (input): The scan tool displays ON or OFF. The
tool displays ON when the output is active and OFF when the output is inactive.
Headlamp Wash (output): The scan tool displays ON or OFF. The
tool displays ON when the output is active and OFF when the output is inactive.
Rear Washer Requested: The scan tool displays YES or NO. The
 scan tool displays YES when it has received a confirmation message from LGM/EGM to
 activate the rear washer.
LGM Scan Tool Data List
Lower Left Ajar Switch: The scan tool displays the state of
the switch.
Rear Wiper Mode: The scan tool displays OFF, DELAY 1, DELAY
2, ON, or WASH. The scan tool displays the commanded state of the rear wiper motor
by the liftgate control module.
Requested Rear Wiper: The scan tool displays OFF, DELAY 1, DELAY
 2, ON, or WASH. The scan tool displays the current rear wiper switch position determined
by the switch position data received by the liftgate control module from body control
module (BCM).
Upper Left Ajar Switch: The scan tool displays the state of
the switch.
Upper Right Ajar Switch: The scan tool displays the state of
the switch.
IPC Scan Tool Data List
Low Washer Fluid: The scan tool displays the state of the low
washer fluid.