audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Camshaft Adjustment Valve 1 and Camshaft Adjustment Valve 1, Exhaust, Checking|Page 2045 > < Electrical - Battery Testing And Charging Information|Page 2037
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Variable Valve Timing Actuator: Testing and Inspection
Camshaft Adjustment Valve 1 and Camshaft Adjustment Valve 1, Exhaust, Checking

Camshaft Adjustment Valve 1 And Camshaft Adjustment Valve 1, Exhaust, Checking

The following procedure is used to diagnose both Camshaft Adjustment Valve 1 N205 and Camshaft Adjustment Valve 1 (exhaust) N318

Special tools, testers and auxiliary items required

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Multimeter.

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Wiring diagram.

Test requirements

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The Camshaft Adjustment Valve 1 N205 fuse OK.

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Motronic Engine Control Module (ECM) Power Supply Relay J271 OK, checking.

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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/Initial Inspection and Diagnostic Overview/General Diagnosis

Start diagnosis

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Remove the engine cover with air filter.

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Disconnect Camshaft Adjustment Valve 1 N205 electrical harness connector - 1 - or Camshaft Adjustment Valve 1 (exhaust) N318.

Camshaft Adjustment Valve 1 and Camshaft Adjustment Valve 1, Exhaust, Checking|Page 2045 > < Electrical - Battery Testing And Charging Information|Page 2037