A4 Quattro Wagon L4-2.0L Turbo (BPG) (2005)
Variable Valve Timing Actuator: Testing and Inspection
Camshaft Adjustment Valve 1 N205, Checking
Special tools, testers and auxiliary items required
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Multimeter V.A.G 1526 or equivalent.
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Test Box 105 Pin VAG1598/42.
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Adapter Lead Vag1598/39 VAG1598/39.
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Adapter cable V.A.G 1598/39-1.
Test requirements
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Fuse for Camshaft Adjustment Valve 1 N205 OK.
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Motronic Engine Control Module (ECM) Power Supply Relay J271 OK.
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Battery voltage at least 12.5 volts.
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All electrical consumers such as, lights and rear window defroster, switched off.
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Vehicles with automatic transmission, shift selector lever into position "P" or "N" .
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A/C switched off.
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Ground (GND) connections between engine/transmission/chassis OK.
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Ignition switched off.
Test sequence
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Remove engine cover - arrows - .
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Disconnect the electrical harness connector - 1 - from Camshaft Adjustment Valve 1 N205 .
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Using the Multimeter V.A.G 1526 A or equivalent, check the Camshaft Adjustment Valve 1 N205 for resistance.
Specified value: 5.0 to 8.0 Ohms (at approx. 20 degrees C)
If the specification is not obtained:
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If the specification is not obtained.
If the specification is obtained:
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Connect the test box 1598/42 to the wiring harness of the Engine Control Module (ECM) J623.