A3 L4-2.0L Turbo (BPY) (2006)
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Disconnect the gray Engine Speed (RPM) Sensor G28 electrical harness connector - 5 -.
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Using a multimeter , check the Engine Speed (RPM) Sensor G28 terminals 2 to 3 - B - for resistance.
Specified value: 730 to 1000 Ohms (at approx. 20 degrees C)
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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: 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
If the manufacturers test box is being used. Perform the following step.
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Install the test box.
If the manufacturers test box is not being used. Perform the following step.
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Remove the Motronic Engine Control Module (ECM) J220.
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Using a Multimeter, check the Engine Speed (RPM) Sensor G28 electrical harness connector terminals to the Motronic Engine Control Module
(ECM) J220 electrical harness connector T60 terminals for an open circuit.