Passat Sedan 4Motion W8-4.0L (BDP) (2002)
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End diagnostic 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.
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- (-1-).
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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. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles
and Readiness Codes
If voltage supply and wires are OK: