Touareg V10-5.0L DSL Turbo (BWF) (2006)
Function Test
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Connect diagnostic tester.
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Start engine and let run at idle.
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Depress accelerator pedal to approx. 1500 RPM.
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Under address word 33, select "Diagnostic mode 1: Check measured values."
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Select the measuring value "PID 16: Air flow quantity at Mass Air Flow (MAF) sensor".
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Check specified value of air flow quantity at Mass Air Flow (MAF) Sensor at idle:
Specified value: 4.50 to 7.00 g/sec
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End diagnosis and switch ignition off.
If specified value is obtained, but DTC memory has a DTC concerning Mass Air Flow (MAF) sensor:
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Check voltage supply of Mass Air Flow (MAF) sensor.
If specified value is not obtained:
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Check signal and Ground (GND) wires of Mass Air Flow (MAF) sensor.
Checking Voltage Supply
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Disconnect 5-pin connector from Mass Air Flow (MAF) Sensor 2 (G246) (- A -).
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Switch ignition on.
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Measure voltage supply for MAF sensor between the following connector terminals: