S4 Quattro Wagon V8-4.2L (BHF) (2008)
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Switch the ignition on.
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Using a Multimeter, Check the Camshaft Position (CMP) Sensor (G40) or Camshaft Position (CMP) Sensor 2 (G163) electrical harness connector
terminals 1 to 3 for voltage.
Specified value: about 5.0 V
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Switch the ignition off.
If the specification was not obtained:
Checking wiring
If the manufacturers test box is being used. Perform the following step.
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Install the test box. Refer to Fuel Injection and Ignition Repair Information.
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, Replacing ] See: Powertrain
Management/Computers and Control Systems/Engine Control Module/Service and Repair
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Using a Multimeter, Check the Camshaft Position (CMP) Sensor (G40) or Camshaft Position (CMP) Sensor 2 (G163) electrical harness connector
to the Motronic Engine Control Module (ECM) electrical harness connector T121 for an open circuit.