S4 Quattro Wagon V8-4.2L (BHF) (2008)
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Using a Multimeter , check the Camshaft Adjustment Valve 1 N205 or Camshaft Adjustment Valve 1 (exhaust) N208 for resistance.
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Measure pin 1 pin 2 of the component.
Specified value: 5.0 to 8.0 Ohms (at approx. 20 degree C)
If the specified value was not obtained:
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Replace the Camshaft Adjustment Valve 1 N205 or Camshaft Adjustment Valve 2 (exhaust) N208.
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 1 N205 or Camshaft Adjustment Valve 2 (exhaust) N208 electrical harness connector
terminal 1 to the Motronic Engine Control Module (ECM) Power Supply Relay J271 terminal 87/2 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.
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If necessary, repair the faulty wiring connection.
If the specified value was obtained:
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.
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Using a Multimeter , Check the Camshaft Adjustment Valve 1 N205 or Camshaft Adjustment Valve 2 (exhaust) N208 electrical harness connector
terminal 2 to the Motronic Engine Control Module (ECM) electrical harness connector for an open circuit.
Camshaft Adjustment Valve 1
Motronic Engine Control Module
N205 electrical harness
(ECM) electrical harness connector