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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 69 (ENGINE CONTROLS SELF-DIAGNOSTICS - 4.3L)DIAGNOSTIC TESTSDTC P0341: CAMSHAFT POSITION SENSOR CIRCUIT PERFORMANCEDESCRIPTION
2004 Oldsmobile Bravada AWD

DTC P0341: Camshaft Position Sensor Circuit Performance: Description

2004 Oldsmobile Bravada AWDSECTION Description
WARNING: This page is about a different car, the 2002 GMC Savana and 2002 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.

The camshaft position (CMP) sensor is a sensor designed to detect changes in a magnetic field. The control module supplies the CMP sensor with the following circuits:

  • A 12-volt reference circuit.
  • A low reference circuit.
  • A signal circuit.
The CMP sensor produces a magnetic field whenever the ignition is ON. The CMP sensor is mounted near a reluctor wheel that is attached to the distributor shaft. When the distributor shaft rotates, or when the engine is cranking or running, the reluctor wheel changes the magnetic field. The CMP sensor converts each change in the magnetic field into a PULSE. The number of teeth on the reluctor wheel determines how many pulses the CMP sensor detects per camshaft rotation. The control module uses the CMP sensor signal in order to calculate the correct timing for sequential fuel injection (SFI). If the Powertrain Control Module (PCM) does not detect the CMP signal while the engine is running, this Diagnostic Trouble Code (DTC) will set.

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