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Home >> Buick >> 2021 >> Envision Preferred, AWD >> Repair and Diagnosis (Single Page) >> General Information >> OEM General Information >> Vehicle Diagnostic Scan Tool Information (1 Of 2) >> Specifications >> A26 Heater and Air Conditioning User Interface Control - Front: Scan Tool Information

A26 Heater and Air Conditioning User Interface Control - Front: Scan Tool Information

HVAC Controls Scan Tool Data Parameters

Parameter System State Expected Value Description
Operating Conditions:  Ignition ON/ Vehicle in Service Mode
Base Model Part Number - Varies Base Model Part Number is the part number for the hardware without software and calibrations.
Base Model Part Number - Alpha Code - Varies  
Communication Channel Status - CAN - Varies The scan tool displays the status of the CAN Bus
Diagnostic Data Identifier - Varies The scan tool displays the 4 character alphanumeric device ID.
End Model Part Number - Varies End Model Part Number is the part number for the hardware of the control module with software and calibrations.
End Model Part Number - Alpha Code - Varies  
Power Mode - Run The scan tool displays the current vehicle power mode.
Vehicle Identification Number (VIN) - Varies The scan tool displays the learned VIN