volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Inertia Fuel Shutoff Switch|Description and Operation|Page 3590 > < With Generic Scan Tool|Page 3586
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Inertia Fuel Shutoff Switch: Description and Operation

Crash fuel shut-off

Function

Airbag-equipped vehicles have a crash fuel shutoff. This is intended to reduce the risk of vehicle fire following a crash by switching off the Fuel Pump
(FP) via the Fuel Pump (FP) relay. At the same time, this function improves comfort of engine start-up behavior. When the door is opened, the Fuel
Pump (FP) is activated for 2 seconds so that pressure builds in the fuel system.

When opening fuel system:

-

Check activation of Fuel Pump (FP) Relay -J17- according to  wiring diagram.

Inertia Fuel Shutoff Switch|Description and Operation|Page 3590 > < With Generic Scan Tool|Page 3586