A5 Quattro Coupe V6-3.2L (CALA) (2009)
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CAUTION!
Do not touch the Ignition Coils connecting parts or adapter cables during the following test.
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Disable the power supply to the Fuel Injectors (N30, N31, N32, N33, N83, N84) by removing Fuse 29 (on fuse panel B) from the fuse holder
SB29, in the E-box, plenum chamber.
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Using a diode test lamp, check the Ignition Coil electrical harness connector terminals 3 to 4 for voltage.
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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, N323, N324). Refer to appropriate service 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.
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 appropriate service information.
