P0340 NISSAN - Camshaft Position Sensor Circuit Bank 1

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What does this mean?

P0340 NISSAN 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

First diagnose P0340 NISSAN code

    Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.

P0340 NISSAN Tech Notes

Nissan models with distributor the camshaft position sensor is part of the distributor.

There is a factory service bulletin for the following Nissan models:
2003 Nissan Altima
2004 Nissan Altima
2005 Nissan Altima
2004 Nissan Quest
2004 Nissan Maxima
Nissan Factory Service Bulletin OBDII Code P0340

Camshaft Positioning Sensor Replacement - Nissan Altima





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Cost of diagnosing the P0340 NISSAN code

    Labor: 1.0

    The cost of diagnosing the P0340 NISSAN code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

When is the P0340 NISSAN code detected?

The camshaft position sensor signal is not detected by the Engine Control Module(ECM) during the first few seconds of engine cranking

P0340 NISSAN Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Lack/Loss of Power
  • Engine Stall

P0340 NISSAN Meaning

The Camshaft Position Sensor is an electronic device used in an engine to record the rate at which the camshaft is spinning. This information is used by the Engine Control Module(ECM) to control ignition and fuel injection. The camshaft position sensor senses the retraction of camshaft (intake) to identify a particular cylinder. The camshaft position sensor senses the piston position. The sensor system consists of a rotating part, typically a disc, as well as a static part, the actual sensor.

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 causes 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 the timing of cylinder identification signals.

*Sensor design may vary for your model and year

OBDII Code P0340 NISSAN - Camshaft Position Sensor Circuit Bank 1  - Engine-Codes.com

P0340 NISSAN More Information

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P0340 NISSAN Information for specific Nissan models

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