TTS Quattro Roadster L4-2.0L Turbo (CDMA) (2009)
If the specified value was not obtained:
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Replace the faulty Knock Sensor (KS) 1 (G61).
If the specified value was 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) ( J623).
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Using a multimeter, Check the Knock Sensor electrical harness connector to the Motronic Engine Control Module (ECM) (J623) electrical harness
connector T60 for an open circuit.
Specified value: 1.5 ohms Max.
If the specified value was not obtained:
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Check the wiring connection for an open circuit.
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Check the wiring connection for damage, corrosion, loose or broken terminals.
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If necessary, repair the faulty wiring connection.
If no malfunction is found in the wiring and the resistance was not OK:
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Replace the faulty Knock Sensor (KS) 1 (G61).
If no malfunction is found in the wiring and the resistance was OK:
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Replace the Motronic Engine Control Module (ECM) (J623).
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Install the engine cover with air filter.
Final procedures