RS 4 Quattro Cabriolet V8-4.2L (BNS) (2008)
Checking internal resistance
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Using a Multimeter, check the Camshaft Adjustment Valve, for resistance.
Specified value: 5.0 to 8.0 ohms (at approx. 20° C)
If the specified value was not obtained:
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Replace the faulty Camshaft Adjustment Valve 1 ( N205) or Camshaft Adjustment Valve 1 (exhaust) ( N318) Fuel Injection and Ignition Repair
Information.
If the specified value was obtained:
Checking voltage
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Switch the ignition on.
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Using a Multimeter, Check the Camshaft Adjustment Valve electrical harness connector terminal 2 to the Motronic Engine Control Module
(ECM) Power Supply Relay (J271 ) terminal 2/87 for voltage.
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Switch the ignition off.
Specified value: battery voltage.
If the specified value was not obtained:
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Check the wiring connection for an open circuit, short circuit to Battery (+) or Ground (GND).
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Check the wiring connection for damage, corrosion, lose or broken terminals.