volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Sensors and Switches - Fuel Delivery and Air Induction > < Rollover Valve, Fuel Tank|Description and Operation|Page 3686
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Connect VAG 1527 voltage tester to outer terminals of connector using adapter cables from VAG 1594 connector test kit.

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Operate remote control.
LED must light up.

IF LED does not light up:

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Locate and repair open circuit using wiring diagram:
See Electrical Wiring Diagrams, Troubleshooting & Component Locations.
LED lights up (voltage supply OK):

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Use ring nut spanner 3217 to remove union nut.

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Check whether electrical wires between flange and Fuel Pump (FP) are connected.

If there are no open circuits:

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Fuel Pump (FP) faulty, replace Fuel Pump (FP). 

Sensors and Switches - Fuel Delivery and Air Induction > < Rollover Valve, Fuel Tank|Description and Operation|Page 3686