Jetta L4-1.8L Turbo (AWP) (2004)
Engine Speed Sensor: Testing and Inspection
With Generic Scan Tool
Check Engine Speed (RPM) sensor
Function
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.
Recommended special tools and equipment
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VAG1526 multimeter or VAG1715 multimeter
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VAG1594 connector test kit
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Wiring diagram
Test sequence
Vehicles with engine code AWD
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Disconnect gray 3-pin harness connector -1- leading to the engine speed (RPM) sensor.
Vehicles with engine code AWP, AWW
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Disconnect gray 3-pin harness connector to engine speed (RPM) sensor (arrow).
Continuation for all vehicles