New Beetle GLS L4-1.8L Turbo (AWV) (2001)
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Fuse No. 43 must be OK
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Coolant temperature must be at least 85 °C See display group 04, display zone 3
Functional check
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Connect VAG1551 Scan Tool (VAG1552). Start engine and select the engine control module with the "Address word" 01.
Connecting scan tool and selecting engine control module:
Indicated on display
Rapid data transfer
HELP
Select function XX
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Press keys 0 and 8 for the "Read measured value block" function and confirm entry with Q key.
Indicated on display
Read measured value block
Input display group number XXX
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Press keys 0, 7 and 0 for "Display group number 70" and confirm entry with Q key.
Indicated on display: (1-4 = Display zones)
Read Measuring Value Block 70
->
1
2
3
4
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Press key 4 for the "Basic setting" function ("Tank venting valve diagnosis" will be initiated)
NOTE: The engine must not be loaded during this diagnosis because the diagnosis will be interrupted and will not be started again until the engine is
revved-up.
Indicated on display: (1-4 = Display zones)
System in basic setting 70
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1
2
3
4
When the diagnosis is initiated by the engine control module, the display in display zone 4 jumps from "Test OFF" to "Test ON.
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Run engine at idling speed until the specification "EVAP OK" is displayed in display zone 4.
NOTE: If the display jumps from "Test ON" to "Test OFF" during the test, rev up briefly and the test will be repeated.