audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

With Manufacturer's Scan Tool|Page 3959 > < With Manufacturer's Scan Tool|Page 3957
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Connect multimeter at valve for resistance measurement.

Specified value: 25 to 35 Ohms

If specified value is not obtained.

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Replace Wastegate Bypass Regulator Valve -N75-.

If specified value is obtained:

Checking voltage supply

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Connect multimeter between terminal 1 and 2 for voltage measurement.

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Operate starter briefly.

Specified value: approx. battery voltage

If there is no voltage:

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Connect multimeter for voltage measurement as follows:

Harness connector Terminal

Measure to

1

Engine Ground (GND)

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Operate starter briefly.

Specified value: approx. battery voltage

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Switch ignition off.

If there is no voltage again:

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Check wire connection from harness connector terminal 1 to Fuel Pump (FP) Relay -J17- via fuse for open circuit according to wiring diagram.

Specified value: Wire resistance max 1.5 Ohms

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If necessary, repair wire connection.

If voltage supply is OK:

Check Ground (GND) activation

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