Touareg V6-3.2L (BMX) (2005)
If specified value is not obtained:
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Check signal and Ground (GND) wires of Mass Air Flow (MAF) sensor.
Voltage supply for Mass Air Flow (MAF) sensor, checking
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Disconnect 5-pin connector from Mass Air Flow (MAF) Sensor (G70) with Intake Air Temperature (IAT) Sensor (G42) (arrow).
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Connect multimeter to terminal 2 of connector and engine Ground (GND) for voltage measurement.
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Start engine, and let run at idle.
Specified value: at least 11.0 V
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Switch ignition off.
If there is no voltage:
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Check voltage supply at 5-pin connector terminal 2 according to wiring diagram:
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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 voltage supply and wires are OK:
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Connect multimeter to terminal 4 of connector and engine Ground (GND) for voltage measurement.