A4 Quattro Sedan L4-2.0L Turbo (CAEB) (2009)
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Switch the ignition on.
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Using a multimeter, check the Low Fuel Pressure Sensor (G410) electrical harness connector for voltage.
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Switch the ignition off.
If the specified value was obtained:
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Replace the Low Fuel Pressure Sensor (G410).
If the specified value was Not obtained:
Checking wiring
If the manufacturers test box is being used, perform the following step.
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Install the test box.
If the manufacturers test box is not being used, perform the following step.
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Remove the Motronic Engine Control Module (ECM) ( J623).
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Using a multimeter, check the Low Fuel Pressure Sensor (G410) electrical harness connector terminals to the Motronic Engine Control Module
(ECM) (J623) electrical harness connector T60 terminals for an open circuit according to the wiring diagram.
Specified value: 1.5 ohms Max.
If the specified value was Not obtained:
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Check the wiring for an open, high resistance, short to Battery (+) or Ground (GND).
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Check the electrical harness connector for damage, corrosion, loose or broken terminals.
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If necessary, repair the faulty wiring connection.
