Passat L4-1.8L Turbo (AWM) (2004)
Hall Effect Sensor: Testing and Inspection
Special tools, workshop equipment, testers, measuring instruments and auxiliary items required
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Test box V.A.G 1598/31
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Hand multimeter V.A.G 1526 or multimeter V.A.G 1715
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Adapter set V.A.G 1594
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Wiring diagram
Test conditions
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The battery voltage must be at least 11.5 V.
Test sequence
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Pull 3 pin connector -1- off Hall sender -2-.
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Connect multimeter to measure voltage using aux. cables from V.A.G 1594 to the outer contacts of the connector.
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Switch on ignition.
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Specification: min. 4.5 V
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Switch off ignition.
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Connect test box V.A.G 1598/31 to control unit wiring harness. The engine control unit remains disconnected.
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Check wiring for open circuit between test box and connector using wiring diagram.
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Contact 1+socket 98
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Contact 2+socket 86