audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Fuel Supply Line > < All Technical Service Bulletins for Fuel Shut-off Solenoid:|259103|Page 3401
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Using jumper cable, connect terminal 2 of open shut-off valve connector to ground
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Specification: 40% duty cycle

Note:  Duty cycle must read 40% regardless of engine rpm

If duty cycle reading NOT OK

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Remove cover of control unit located in front passenger footwell

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Unplug control unit connector

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Using ohmmeter, check for continuity between terminal 2 of shut-off valve connector and terminal 4 of control unit connector A
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Specification: 0.2 ohm 

If ohmmeter reading NOT OK

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Check for open circuit in wiring according to current flow diagram

If wiring OK

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Replace control unit

Fuel Supply Line > < All Technical Service Bulletins for Fuel Shut-off Solenoid:|259103|Page 3401