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Passat Sedan V6-3.6L (BLV) (2008)

Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Locations > Page 3478

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Air Flow Meter/Sensor: Testing and Inspection

Diagnostic Procedures

Mass Air Flow Sensor, Checking

‹› Use only gold-plated terminals when servicing terminals in harness connector of Mass Air Flow (MAF) Sensor (G70). 

Special tools, testers and auxiliary items required

‹› Multimeter.

‹› Wiring diagram.

Test requirements

‹›  The Mass Air Flow (MAF) Sensor (G70) fuse OK.

‹› Battery voltage at least 12.5 volts.

‹› All electrical consumers such as, lights and rear window defroster, switched off.

‹› Vehicles with automatic transmission, shift selector lever into position " P" or "N".

‹› A/C switched off.

‹› Ground connections between engine/transmission/chassis OK.

‹› Coolant Temperature at least 80° C.

‹› Ignition switched off.

Test procedure

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Observe safety precautions. Refer to => [ Safety Precautions ] See: Computers and Control Systems/Service Precautions/Safety Precautions

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Observe Clean Working Conditions. Refer to => [ Clean Working Conditions ] See: Computers and Control Systems/Service Precautions/Clean
Working Conditions

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Perform a preliminary check to verify the customers complaint. Refer to => [ Preliminary Check ] See: Computers and Control Systems/Testing
and Inspection/Scan Tool Testing and Procedures/Preliminary Check.

Start diagnosis

Function test

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Connect the scan tool.

Powertrain Management > Fuel Delivery and Air Induction > Air Flow Meter/Sensor > Component Information > Locations > Page 3478

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