A4 Quattro Cabriolet V6-3.2L (BKH) (2007)
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Operate the starter.
The LED should flicker.
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Switch the ignition off.
If the LED flickers and the voltage was OK:
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Replace the faulty Ignition Coils with Power Output Stage (N70, N127, N291, N292) Refer to Fuel Injection and Ignition Repair Information.
If the LED does not flicker:
Checking wiring
If the manufacturers test box is being used. Perform the following step.
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Install the test box. Refer to Fuel Injection and Ignition Repair Information.
If the manufacturers test box is not being used. Perform the following step.
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Remove the Engine Control Module (ECM) (J623 ). Refer to => [ ECM, Removing and Installing ] See: Computers and Control Systems/Engine
Control Module/Service and Repair/ECM, Removing and Installing.
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Using a Multimeter, Check the Ignition Coil electrical harness connector to the Engine Control Module (ECM) (J623) electrical harness connector
T60 for an open circuit.