New Beetle GLS L4-2.0L (AVH) (2001)
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Check wires between test box and 5-pin connector for open circuit according to wiring diagram.
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Terminal 1 + test box socket 26
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Terminal 3 + test box socket 27
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Wire resistance: max. 1.5 Ohms
Continuation for all vehicles
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Also check wires for short circuit to each other, to vehicle Ground (GND) and to B+. Specified value: Infinite Ohms
If no malfunctions are found in wire:
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Measure resistance at Intake Air Temperature (IAT) sensor -G42-, terminals 1 (signal) and 3 (Ground -GND-).
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Range A displays resistance values for the temperature range of 0...50 degrees C, range B displays resistance values for the temperature range
of 50...100 degrees C.
Read-out examples:
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30 degrees C is in range A and corresponds to a resistance of 1.5 to 2.0 k Ohms
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80 degrees C is in range B and corresponds to a resistance of 275 to 375 Ohms
If specified value is not obtained:
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Replace Mass Air Flow (MAF) Sensor -G70- with Intake Air Temperature (IAT) Sensor -G42-: