AutoCodes – Nissan – P0340 2012 Nissan Altima Sedan

P0340 2012 Nissan Altima Sedan Code - Camshaft Position Sensor Circuit Bank 1

Quick Answer

The Camshaft Position Sensor is an electronic device used in an engine to record the rate at which the camshaft is spinning. Common causes include Faulty Camshaft Position Sensor, Camshaft Position Sensor harness is open or shorted, Camshaft Position Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0340 2012 Nissan Altima Sedan indicates Camshaft Position Sensor Circuit Bank 1 .
Common causes
Common causes include Faulty Camshaft Position Sensor, Camshaft Position Sensor harness is open or shorted, Camshaft Position Sensor circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code Popularity 14,225
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0340 2012 Nissan Altima Sedan Description

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 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.
OBDII Code P0340 2012 Nissan Altima Sedan - Camshaft Position Sensor Circuit Bank 1  - AutoCodes.com
P0340 2012 Nissan Altima Sedan Code - Camshaft Position Sensor Circuit Bank 1

What are the Possible Causes of the DTC P0340 2012 Nissan Altima Sedan?

  • 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

How to Fix the DTC P0340 2012 Nissan Altima Sedan?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0340 2012 Nissan Altima Sedan code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0340 2012 Nissan Altima Sedan code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0340 2012 Nissan Altima Sedan Code

1. What are the common symptoms of OBDII code P0340 in a 2012 Nissan Altima Sedan?

- Common symptoms include rough idling, engine stalling, decreased fuel efficiency, and difficulty starting the vehicle.

2. What does the OBDII code P0340 in a 2012 Nissan Altima Sedan indicate?

- This code indicates a problem with the Camshaft Position Sensor Circuit Bank 1, specifically related to the camshaft position sensor's signal not matching the engine's timing.

3. What are some possible causes of OBDII code P0340 in a 2012 Nissan Altima Sedan?

- Potential causes include a faulty camshaft position sensor, wiring issues in the sensor circuit, a damaged sensor connector, or issues with the timing belt or chain.

4. How can I diagnose the cause of OBDII code P0340 in my 2012 Nissan Altima Sedan?

- Diagnosing the issue may involve checking the sensor's wiring and connector for damage, testing the sensor's voltage output, and inspecting the timing belt or chain for proper alignment.

5. Can I continue driving my 2012 Nissan Altima Sedan with OBDII code P0340?

- It is not recommended to continue driving the vehicle with this code, as it can lead to further engine damage or potential safety hazards due to issues with timing and engine performance.

6. How can I repair OBDII code P0340 in my 2012 Nissan Altima Sedan?

- Repairing this code typically involves replacing the camshaft position sensor, repairing any damaged wiring or connectors, and ensuring proper alignment of the timing belt or chain.

7. Is it possible to reset the OBDII code P0340 in a 2012 Nissan Altima Sedan without fixing the underlying issue?

- While you can clear the code using an OBDII scanner, it is not recommended to do so without addressing the root cause, as the problem may persist and potentially cause more severe issues.

8. Are there any preventive measures to avoid OBDII code P0340 in a 2012 Nissan Altima Sedan?

- Regularly inspecting and maintaining the camshaft position sensor, wiring, and timing components can help prevent this code from occurring due to issues with these components.

9. How long does it typically take to repair OBDII code P0340 in a 2012 Nissan Altima Sedan?

- The repair time can vary depending on the exact cause of the code and the expertise of the person performing the repair, but it usually takes a few hours to complete the necessary diagnostics and replacement of components.

10. Can a DIY enthusiast with basic mechanical skills repair OBDII code P0340 in a 2012 Nissan Altima Sedan?

- Depending on the exact cause, a DIY enthusiast with basic mechanical skills may be able to replace the camshaft position sensor or check for obvious wiring issues, but more complex diagnostics and repairs may require professional assistance.

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