A4 Quattro Wagon V6-3.0L (AVK) (2002)
Display will appear as shown
Read measuring value block
Enter display group number XXX
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Press 0, 7 and 1 buttons to select "display group 71".
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Press Q button to enter input.
Display will appear as shown
Read measuring value block
->
Reed closed
break
Test OFF
NOTE:
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Condition for continuing test is "Reed closed" on the display.
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The display does not always show "Abort".
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If the display. "reed open" appears: Briefly open the filler cap to reduce pressure - this will close the reed contact. Continue checking as follows:
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Press 0 and 4 buttons to select Function 04: "Basic Setting".
Display will appear as shown
System in basic adjustment 71
->
Reed closed
Test ON
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The EVAP canister valve is opened to allow pressure relief in the system.
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Then the LDP -V144 will be triggered.
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The total procedure lasts approx. 60 seconds.
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Press -> button
Display will appear as shown
System in Basic Adjustment 71
->
Reed open
Syst.Test
Test ON
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The system makes a test, the LDP -V144 starts running and shuts off when the pump running time reaches a pre-determined time-out.
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The total procedure lasts approx. 60 seconds.
Display will appear as shown
System in Basic Adjustment 71
->
Reed open
Measurement
Test >ON
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Measurement phase begins. The LDP -V144 is switched off and the ECM checks whether the reed contact has closed within 10 seconds.
If NO
Display will appear as shown
System in Basic Adjustment 71
->
Reed open
Messg.END
Syst. OK
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The system is sealed and the measurement is ended.
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Press -> button.
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Press 0 and 6 buttons to select Function 06: "End output"
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Press Q button to enter input.
If contact does not close within 10 seconds.
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The LDP -V144 performs 4 pump strokes. The ECM compares the time it takes to carry out the pump strokes and the time until the reed contact
closes again.
Display will appear as shown