A4 Quattro Cabriolet L4-2.0L Turbo (BWT) (2009)
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If necessary, repair the faulty wiring connection.
If the specified values were obtained:
Checking Ground (GND)
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Using a Multimeter, check the Ignition Coil electrical harness connector terminal 4 to Ground (GND) connection on engine block for resistance.
Specified value: 1.5 ohms Max.
If the specified value was not obtained:
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Check the Ignition Coil electrical harness connector terminal 4 to the Ground (GND) connection on engine block for an open circuit, short circuit
to Battery (+).
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Check the wiring connection for damage, corrosion, loose or broken terminals.
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If necessary, repair the faulty wiring connection.
If the specified value were obtained:
Checking activation
CAUTION!
Do not touch the Ignition Coils connecting parts or adapter cables during the following test.
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Using a diode test lamp, check the Ignition Coil electrical harness connector terminals 2 to 3 for voltage.