S6 Quattro Sedan V10-5.2L (BXA) (2007)
Checking internal resistance
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Using a Multimeter, check the Knock Sensor (KS) 2 (G66) terminals 1 to 2 for an internal short.
Specified value: infinite (Infinity).
If the specified value was not obtained:
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Replace Knock Sensor (KS) 2 (G66).
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). Refer to => [ Engine Control Module, Removing and Installing ] See: Powertrain
Management/Computers and Control Systems/Engine Control Module/Service and Repair/Engine Control Module, Removing and Installing.
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Using a Multimeter, check the Knock Sensor (KS) 2 (G66) electrical harness connector to the Motronic Engine Control Module (ECM) (J623)
electrical harness connector T60a for an open circuit.