Jetta Sedan L5-2.5L (CBTA) (2009)
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End diagnosis and switch ignition off.
If the specified value was not obtained:
Checking internal resistance
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Disconnect the Engine Speed (RPM) Sensor (G28) electrical harness connector.
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Using a multimeter, check the Engine Speed (RPM) Sensor (G28) terminals 2 to 3 for resistance.
Specified value: 700 to 1000 ohms
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Using a multimeter, check the Engine Speed (RPM) Sensor (G28) terminals 2 to 3 - B - for resistance.
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Check Engine Speed (RPM) Sensor (G28) terminals 1 to 2 and 1 to 3 for short circuits.
Specified value: infinite (infinity)
If any of the specified values are not obtained:
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Replace the Engine Speed (RPM) Sensor (G28)
If the specified values are obtained:
Checking wiring