Windshield Projection Head Up Display Control Module, Calibrating

2025 Audi A4 Quattro PrestigeSECTION Windshield Projection Head Up Display Control Module, Calibrating

Special tools and workshop equipment required 

  • Vehicle Diagnostic Tester
  • Calibration Board for Head-Up Display :VAS 721 005 

Conditions

-- The windshield projection control module must be calibrated under the following conditions:

  • The Windshield Projection Head Up Display Control Module -J898- was replaced.
  • The windshield was removed and installed.
  • "No or incorrect basic setting/adaptation" is stored in the DTC memory.

Preliminary Work

-- Move the vehicle onto a secure flat surface.

-- Apply the parking brake - the vehicle must not move during the measurement.

-- Fold down the left and right sun visors, disengage them and move them to the side.

GWWA90-10205Courtesy of AUDI OF AMERICA, LLC

-- Engage the Calibration Board for Head-Up Display :VAS 721 005  on the center support -1 and 2- for the sun visor.

Calibrating Procedure 

  • The Vehicle Diagnostic Tester is connected.

-- Select and start the Diagnostic  operating mode.

-- Select the Test plan  tab.

-- Select the Select individual test  button and select the following tree structure consecutively:

  • Body
  • Electrical Equipment
  • 01 - OBD-capable systems
  • 82 - Windshield Projection Head Up Display Control Module - J898
  • 82 - Windshield projection control module, functions
  • 82 - Head up display calibration

-- Start the selected program and follow the instructions on the Vehicle Diagnostic Tester display.

-- After calibrating the windshield projection control module successfully, end "calibration", turn off the ignition and disconnect the diagnostic connector.

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

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.