TT Quattro Coupe V6-3.2L (BHE) (2005)
Variable Valve Timing Actuator: Testing and Inspection
Camshaft Adjustment Valve, Checking
Camshaft Adjustment Valve 1, Checking
NOTE: Use only gold-plated terminals when servicing terminals in the electrical harness connectors of the Camshaft Adjustment Valve 1 N205.
Special tools, testers and auxiliary items required
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Multimeter.
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Wiring diagram.
Test requirements
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Motronic Engine Control Module (ECM) J220 Fuses 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 procedure
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Perform a preliminary check to verify the customers complaint. See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Scan Tool Testing and Procedures/General Diagnosis
Start diagnosis
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Disconnect Camshaft Adjustment Valve 1 N205 electrical harness connector - 3 -.
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Using a Multimeter , check the Camshaft Adjustment Valve 1 N205 electrical terminals 1 to 2 for resistance.
Specified value: 5.0 to 8.0 Ohms (at approx. 20 degrees C)
If the specified value was not obtained:
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Replace the Camshaft Adjustment Valve 1 N205.
If the specified value was obtained:
Checking voltage