Output Diagnostic Test Mode (Function 03)

Output Diagnostic Test Mode (function 03)

Notes:
^ Output Diagnostic Test Mode can be performed only with the vehicle stationary and the engine switched off.
^ If a malfunction is indicated during Output Diagnostic Test Mode, find the cause of the malfunction and eliminate it.
^ Switch the ignition on.

The following final control elements are activated one after the other during the final control test:
^ Check control system for normal level and indicator light
^ Check the LED's in the operating unit
^ Check the release valve and the valve at front left
^ Check the release valve and the valve at front right
^ Check the compressor and the compressor relay
^ Release valve and valve at rear left
^ Release valve and valve at rear right
^ Pressure accumulator test
^ Test result

Perform Function 03 - "Output Diagnostic Test Mode"

Note: In performance of Output Diagnostic Test Mode using the VAS5051 tester, fee text is shown on file display. Only figures are displayed if file VAG1551 tester is used (see below e.g. 017821 Literature)





Display:
^ Press Buttons -0- and -3-.





Display:
^ Confirm the entry using the Q button.





Display:
01782: Vehicle is adjusted to standard height.
The indicator light on the instrument cluster flashes at 1 Hz.
Check visually whether the vehicle is horizontal.
^ Press the button.

Note: The indicator light flashes at 1 Hz throughout the final control test.





Display:
01783: Actuation of the LED's on the self leveling suspension system operating unit.
All LED's on the operating unit illuminate in sequence.
^ Press the button.





Display:
01784: Vehicle is lowered at front left.
The vehicle is lowered at front left by releasing air until the button is pressed or until the stop time (approximately 30 s).
^ Press the button.





Display:
01785: Vehicle is lowered at front right
The vehicle is lowered at front right by releasing air until the button is pressed or until the stop time (approximately 30 s).
^ Press the button.





Display:
01782: Vehicle is adjusted to standard height.
Vehicle is raised back to standard height at the front.
^ Press the button.





Display:
01786: Vehicle is lowered at rear left.
The vehicle is lowered at rear left by releasing air until the button is pressed or until the stop time (approximately 30 s).
^ Press the button.





Display:
01787: Vehicle is lowered at rear right
The vehicle is lowered at rear right by releasing air until the button is pressed or until the stop time (approximately 30 s).
^ Press the button.





Display:
01782: Vehicle is adjusted to standard height.
The vehicle is adjusted to standard height at the rear axle
^ Press the button.





Display:
01825: Pressure accumulator being tested.
The pressure accumulator is charged and discharged.
^ Press the button.





Display:
The result of the pressure accumulator test is displayed
01789: Test O.K.
01790: Test not O.K.
In case of display 01790
Check DTC Memory
^ Press the button.





Display:
^ Press the button
The tester is now in the basic function mode again.





Display: