Eos (1F7) L4-2.0L Turbo (BPY) (2007)
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Using a Multimeter, check the Leak Detection Pump (LDP) (-V144-)electrical harness connector terminal 3 to the Engine Component Power
Supply Relay ( J757) terminal 2/87 for an open circuit.
Specified value: Wire resistance max 1.5 ohms.
If the specification is not obtained:
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Check the wiring for a short circuit to Battery positive (+) or an open circuit.
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Check the electrical harness connector for damage, corrosion, lose or broken terminals.
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If necessary, repair the faulty wiring connection.
If no malfunction is detected in the wiring and if the voltage supply was OK:
Checking wiring
If the manufacturers test box is being used. Perform the following step.
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Install the Test Box 105 Pin (VAG1598/42).
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). Refer to => [ Engine Control Module J623, Removing and Installing ] See:
Computers and Control Systems/Engine Control Module/Service and Repair/Engine Control Module J623, Removing and Installing.
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Using a Multimeter, check the Leak Detection Pump (LDP) (-V144-) electrical connector terminal 1 to Motronic Engine Control Module (ECM)
(J623) electrical connector T94 terminal 40 for an open circuit.
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Using a Multimeter, check the Leak Detection Pump (LDP) (-V144-) electrical connector terminals to the Motronic Engine Control Module
(ECM) (J623) electrical connector T94 terminals for an open circuit.