P0340 2005 NISSAN ALTIMA SEDAN - Camshaft Position Sensor Circuit
Possible causes
- Faulty Camshaft Position Sensor
- Camshaft Position Sensor harness is open or shorted
- Camshaft Position Sensor circuit poor electrical connection
- Faulty starter motor
- Starting system circuit
- Dead (Weak) battery
Tech notes
There is a factory service bulletin for the 2003 Nissan Altima:
2005 Nissan Altima Factory Service Bulletin OBDII Code P0340
Camshaft Positioning Sensor Replacement - 2005 Nissan Altima
User Submitted Video
2005 Nissan Altima Factory Service Bulletin OBDII Code P0340
Camshaft Positioning Sensor Replacement - 2005 Nissan Altima
User Submitted Video
When is the code detected?
The camshaft position sensor signal is not detected by the Engine Control Module(ECM) during the first few seconds of engine cranking
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/Loss of Power
- Engine Stall
P0340 2005 NISSAN ALTIMA SEDAN Description
When the engine is running, the high and low parts of the teeth cause the gap with the sensor to change. The changing gap causes the magnetic field near the sensor to change. The change in the magnetic field cause the voltage from the sensor to change.
When the crankshaft position sensor (POS) system becomes inoperative, the camshaft position sensor provides various controls of engine parts instead, utilizing timing of cylinder identification signals.

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P0340 2005 NISSAN ALTIMA SEDAN Comments
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