A4 Sedan V6-3.2L (BKH) (2007)
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Specified value: battery voltage.
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Switch the ignition off.
If the specified value was not obtained:
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Check the Ignition Coil electrical harness connector terminal 1 to the Engine Component Power Supply Relay (J757) socket 4/85 for an open
circuit.
Specified value: 1.5 ohms Max.
If the specified value was not obtained:
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Check the wiring connection for an open circuit, short circuit to or Ground (GND).
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Check the wiring connection for damage, corrosion, lose or broken terminals.
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If necessary, repair the faulty wiring connection.
If the specified values were obtained:
Checking activation
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) by removing the necessary fuse.
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Using a diode test lamp, check the Ignition Coil electrical harness connector terminals 2 to 3 for voltage.
