A8 Quattro Sedan V8-4.2L (BGK) (2006)
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Connect portable multimeter (VAG1526) to socket 1 of connector and engine Ground (GND) for voltage measurement.
Specified value: approx. 5 Volts.
Signal Wire, Checking
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Switch ignition on.
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Connect portable multimeter (VAG1526) between socket 2 of respective connector and engine Ground (GND) for voltage measurement.
Specified value: approx. battery voltage
Ground Wire, Checking
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Connect portable multimeter (VAG1526) between socket 3 of connector and engine Ground (GND) for resistance measurement.
Specified value: Continuity
Wire resistance: max. 1.5 ohms
If all specified values are being reached and diode test lamp does not blink (measured between terminal 1 and 2 with starter and connector connected).
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Replace respective Camshaft Position (CMP) sensor.
If specified values are not reached, check wire connections.
Wire Connections between CMP Sensor and ECM, Checking