Engine-Codes - Nissan - P0340 Nissan

P0340 Nissan Code - Camshaft Position Sensor Circuit Bank 1

- Code Popularity: 609,640 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
Table of contents
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What are the Possible Causes of the DTC P0340 Nissan?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other 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

Code Tech Notes

Nissan models with a distributor, the camshaft position sensor are 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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How to Fix the DTC P0340 Nissan?

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 connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P0340 Nissan code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

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

What are Code Possible Symptoms?

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

What Does the P0340 Nissan Code Mean?

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

P0340 Nissan Code - Camshaft Position Sensor Circuit Bank 1

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Information for Specific Nissan Models

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