New Beetle L4-2.0L (AZG) (2003)
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All fuses must be OK.
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Engine Coolant Temperature: 85 °C minimum See display group 04, display zone 3
Test sequence
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Connect VAG 1551/1552 Scan Tool.
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Start engine and let idle.
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Press 0 and 1 buttons to select Address word 01 "Engine electronics"
Indicated on display
Rapid data transfer
HELP
Select function XX
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Press 0 and 8 buttons to select Function 08 "Read measuring value block"
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Press Q button to confirm input
Indicated on display
Read measuring value block
Input display group number XXX
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Press buttons 0, 7 and 0 to select "Display group 70"
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Press Q button to confirm input
Indicated on display (1 to 4 = Display zones)
Read measuring value block 70
->
1
2
3
4
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Press 4 button to select Function 04: "Basic setting" function
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Tank venting valve diagnostic will be initiated
NOTE: Engine must not be under load during this diagnosis because diagnosis will be interrupted and will not restart until engine is revved-up.
Indicated on display (1 to 4 = Display zones)
System in basic setting 70
->
1
2
3
4
NOTE: When diagnosis is initiated by the engine control module (ECM), the display in zone 4 changes from "Test OFF" to "Test ON"
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Run engine at idle until specification "TEV OK" is displayed in zone 4.
NOTE: If the display changes from "Test ON" to "Test OFF" during the test, briefly raise the engine speed and the test will repeat.
If the specification "TEV OK" is obtained:
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Press -> button.
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Press 0 and 6 buttons to select Function 06 "End transfer