Touareg V8-4.2L (BAR) (2007)
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Disconnect connector from Fuel Pump (FP) Control Module (J538) - 5 -.
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Switch ignition on.
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Check voltage supply between connector terminals - 3 - and - 4 - using low voltage tester. LED must light up.
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Switch off ignition.
LED does not light up:
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Locate and repair open circuit.
LED lights up (voltage supply OK):
CAUTION!
Fuel supply line is under pressure! Wear protective goggles and protective clothing to prevent injuries and contact with skin. Before
removing from hose connection wrap a cloth around the connection. Then release pressure by carefully pulling hose off connection.
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Remove high pressure in fuel system.