A6 Sedan V6-3.2L (BKH) (2007)
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Remove the rear engine cover - arrows -.
Checking activation
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Using the Diode test lamp , check for voltage between terminal 2 (CMP sensor signal) and terminal 1 (B+) with the electrical harness connector
connected to the Camshaft Position (CMP) Sensor.
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Operate the starter for a few Sec.
The LED must blink.
‹› Voltage testers do not go out completely during low current pick-up between activations by the ECM, but rather continue to glow a little and then
get significantly brighter during activation.
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Switch ignition off.
If the LED blinks:
Replace the relevant Camshaft Position (CMP) Sensor => Fuel Injection and Ignition 24 Removal and Installation.
If the LED does not blink:
Checking voltage supply
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Disconnect the relevant Camshaft Position (CMP) Sensor electrical harness connector.
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Switch the ignition on.
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Using a Multimeter, check the Camshaft Position (CMP) Sensor electrical harness connector terminal 1 to engine ground for voltage.