Passat GLS Wagon L4-1.8L Turbo (AUG) (2001)
Engine Speed Sensor: Testing and Inspection
Engine speed (RPM) sensor -G28-, checking
The engine speed (RPM) sensor -G28- detects engine speed and reference marks. Without an engine speed signal, the engine will not start. If the engine
speed signal fails while the engine is running, the engine will stop immediately.
Special tools and equipment
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VAG 1598/31 adapter cable
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VAG 1526 multimeter or VAG 1715 multimeter
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VAG 1594 connector test kit
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Wiring diagram
Test sequence
I
-
Engine code ATW
II -
Engine codes AUG, AWM
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Disconnect gray 3-pin harness connector to engine speed (RPM) sensor (arrow).
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Measure resistance of sensor between terminals 2 + 3 of connector -1-. Specification: 400 to 1000 Ohms