Beetle L4-2.0L (AEG) (2000)
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Press Q button to enter input.
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Switch OFF ignition.
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Check wiring using Wiring diagram
Check continuation when display = ambient temperature
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Remove intake hose between Mass Air Flow sensor and Throttle Control Module.
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Note Intake Air Temperature value in Display field 4.
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Spray sensor -arrow- with commercial chilling agent while observing temperature value in Display field 4.
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Temperature value must decrease.
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Press -> button.
Indicated on display
Rapid data transfer
HELP
Select function XX
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Press 0 and 6 buttons to select "End output" function 06.
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Press Q button to enter input.
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Switch OFF ignition.
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Check wiring using Wiring diagram.
Wiring, checking
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Connect VAG 1598/22 Test Box to ECM wiring harness.