RS 4 Quattro Cabriolet V8-4.2L (BNS) (2008)
If any of the specifications were not obtained:
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Replace the Leak Detection Pump (LDP) (-V144- ). Refer to Fuel Supply System Repair Information.
If the specified values were obtained:
Checking voltage supply
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Using a Multimeter, check the Leak Detection Pump (LDP) (-V144-) electrical harness connector terminal 3 to Ground (GND) for voltage.
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Operate the starter briefly.
Specified value: battery voltage.
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Switch the ignition off.
If the specified value was not obtained:
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Check the electrical harness connector for damage, corrosion, lose or broken terminals.
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Check the wiring for a short circuit to Ground (GND) or an open circuit.