Touareg V8-4.2L (BHX) (2004)
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Also check wires for short circuit to each other, to vehicle Ground (GND) and to B+.
Specified value: infinite ohms
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Erase DTC memory of Engine Control Module (ECM) , Diagnostic mode 4: Reset/erase diagnostic data.
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Generate readiness code.
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-).
Range A displays resistance values for the temperature range of 0 to 50° C, range B displays resistance values for the temperature range of 50 to 100
° C.
Read-out examples:
‹› 30° C is in range A and corresponds to a resistance of 1.5 to 2.0 kohms
‹› 80° 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).
‹› The Intake Air Temperature (IAT) Sensor (G42) is a component of the Mass Air Flow (MAF) Sensor (G70) and cannot be replaced individually.
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Erase DTC memory of Engine Control Module (ECM) , Diagnostic mode 4: Reset/erase diagnostic data.