A4 Quattro Wagon V6-3.0L (AVK) (2002)
Checking internal resistance
Valve for camshaft adjustment (intake):
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Connect multimeter between terminals 1 and 2 for resistance measurement.
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Specification: 7.4 to 8.2 Ohms
Valve for camshaft adjustment (exhaust):
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Connect multimeter between terminal 2 and 3 for resistance measurement.
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Specification: 12.8 to 14.2 Ohms
All:
If specified value is not obtained:
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Replace valve.
If specified value is obtained:
Checking voltage supply
Test requirement:
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Fuse for valves for camshaft adjustment OK.
Refer to Electrical Wiring Diagrams, Troubleshooting & Component Locations
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Connect VAG1 527B voltage tester as follows:
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Switch ignition on.
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LED must light up.
If LED does not light up:
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Check wire connection from terminal 2 of connector via fuse to Motronic Engine Control Module (ECM) Power Supply Relay -J271- for open
circuit:
Refer to Electrical Wiring Diagrams, Troubleshooting & Component Locations
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Repair open circuit if necessary.
If LED lights up: