volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

With Manufacturer's Scan Tool|Page 1002 > < With Manufacturer's Scan Tool|Page 1000
Page 3
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Connect multimeter to measure voltage on connector terminal 4 and engine Ground.

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Switch ignition on.
Specification: 4.5 to 5.5 V

If no voltage is present:

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Switch ignition off.

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Check signal and Ground wires.

Testing signal and Ground wires for Mass Air Flow (MAF) sensor

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Remove inner plenum chamber cover, left:

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Connect test box V.A.G 1598/31 to control module wiring harness. Engine control module is not connected by this action.

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