A6 Quattro Wagon V6-3.2L (BKH) (2006)
(J623) connector T60, socket 45, through the the Fuel Metering Valve (N290), for resistance.
Specified value: 1.5 ohms max
If the specification was 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, loose 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 output wiring
If the manufacturers test box is being used, perform the following step.
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Connect the test box (VAG1598/42) to the wiring harness of the Engine Control Module (ECM) (J623) with adapter cable (VAG1598/39-1)=>
Fuel Injection and Ignition 24 Diagnosis and Testing.
If the manufacturers test box is not being used, perform the following step.
Remove the Engine Control Module (ECM) (J623). Refer to => [ Engine Control Module, Replacing ] See: Computers and Control Systems/Engine
Control Module/Service and Repair/Engine Control Module, Replacing
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Using a Multimeter, check the Leak Detection Pump (LDP) (-V144-) electrical harness connector terminal 1 to Engine Control Module (ECM)
(J623) electrical harness connector terminal 20 for resistance.
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Using a Multimeter, check the Leak Detection Pump (LDP) (-V144-) electrical harness connector terminal 2 to Engine Control Module (ECM)
(J623) electrical harness connector terminal 24 for resistance.
Specified value: 1.5 ohms max.
If the specification is not obtained:
-
Check the wiring for a short circuit to Battery positive (+), Ground (GND) or an open circuit.
-
Check the electrical harness connector for damage, corrosion, loose or broken terminals.
-
If necessary, repair the faulty wiring connection.