Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBUICK2004RAINIER AWD V8-5.3L VIN PREPAIR AND DIAGNOSISWIPER AND WASHER SYSTEMSTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESSCAN TOOL DATA DEFINITIONS
2004 Buick Rainier AWD V8-5.3L VIN P
Scan Tool Data Definitions
2004 Buick Rainier AWD V8-5.3L VIN PSECTION Scan Tool Data Definitions
SCAN TOOL DATA DEFINITIONS
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.
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 DEFINITIONS
Rear Washer Requested: The scan tool displays YES or NO. While the rear washer switch is pressed the scan tool displays YES, when the switch is released the scan tool displays NO.
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.
Liftgate Ajar Switch: The scan tool displays the state of the switch.
Liftglass Ajar Switch: The scan tool displays the state of the switch.
IPC SCAN TOOL DATA DEFINITIONS
Low Washer Fluid: The scan tool displays the state of the low washer fluid.
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.
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 DEFINITIONS
Rear Washer Requested: The scan tool displays YES or NO. While the rear washer switch is pressed the scan tool displays YES, when the switch is released the scan tool displays NO.
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.
Liftgate Ajar Switch: The scan tool displays the state of the switch.
Liftglass Ajar Switch: The scan tool displays the state of the switch.
IPC SCAN TOOL DATA DEFINITIONS
Low Washer Fluid: The scan tool displays the state of the low washer fluid.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.