AutoCodes – Nissan – P0338 Nissan

P0338 Nissan Code - Crankshaft Position Sensor 'A' Circuit High

Quick Answer

The Crankshaft position sensor also known as the crank position sensor is an electronic device used in an engine to record the rate at which the crankshaft is spinning. Common causes include Faulty crankshaft position sensor, Crankshaft position sensor harness is open or shorted, Crankshaft position sensor circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means
P0338 Nissan indicates Crankshaft Position Sensor 'A' Circuit High .
Common causes
Common causes include Faulty crankshaft position sensor, Crankshaft position sensor harness is open or shorted, Crankshaft position sensor circuit poor electrical connection.
Severity
Moderate - service should be scheduled soon.
Can I drive?
The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
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Code Popularity 7,440
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 P0338 Nissan Description

The Crankshaft position sensor also known as the crank position sensor is an electronic device used in an engine to record the rate at which the crankshaft is spinning. This information is used by the Electronic Control Module(ECM) to control ignition and fuel injection. 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.
OBDII Code P0338 Nissan - Crankshaft Position Sensor 'A' Circuit High  - AutoCodes.com
P0338 Nissan Code - Crankshaft Position Sensor 'A' Circuit High

What are the Possible Causes of the DTC P0338 Nissan?

  • Faulty crankshaft position sensor
  • Crankshaft position sensor harness is open or shorted
  • Crankshaft position sensor circuit poor electrical connection
  • Signal plate may be damage
  • Starter motor may be faulty
  • Starting system circuit
  • Dead or weak battery

How to Fix the DTC P0338 Nissan?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0338 Nissan 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 P0338 Nissan 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 P0338 Nissan Code

1. What are common symptoms of OBDII code P0338 in a Nissan related to the Crankshaft Position Sensor 'A' Circuit High?

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

2. What are the possible causes of OBDII code P0338 in a Nissan indicating a high circuit issue with the Crankshaft Position Sensor 'A'?

- Possible causes include a faulty crankshaft position sensor, damaged wiring or connectors in the sensor circuit, or a malfunctioning engine control module (ECM).

3. How can I diagnose the issue related to OBDII code P0338 in a Nissan with the Crankshaft Position Sensor 'A' Circuit High?

- Diagnosis typically involves using an OBDII scanner to retrieve the specific trouble code, testing the sensor's voltage and resistance, and inspecting the sensor's wiring and connections for any issues.

4. Can a faulty Crankshaft Position Sensor 'A' cause other problems in addition to triggering OBDII code P0338 in a Nissan?

- Yes, a faulty sensor can lead to issues such as misfires, poor acceleration, and potentially damaging the catalytic converter over time.

5. Is it safe to continue driving my Nissan with OBDII code P0338 indicating a high circuit problem with the Crankshaft Position Sensor 'A'?

- It is not recommended to drive the vehicle for an extended period with this issue, as it can lead to further damage and potential safety hazards.

6. What is the typical repair process for resolving OBDII code P0338 in a Nissan due to a high circuit concern with the Crankshaft Position Sensor 'A'?

- The repair process generally involves replacing the faulty crankshaft position sensor, repairing any damaged wiring or connectors, and clearing the trouble code from the ECM.

7. Are there any preventive measures to avoid encountering OBDII code P0338 related to the Crankshaft Position Sensor 'A' Circuit High in a Nissan?

- Regularly inspecting and maintaining the sensor, as well as addressing any engine performance issues promptly, can help prevent this code from occurring.

8. Can a DIY enthusiast with basic automotive knowledge address OBDII code P0338 in a Nissan by themselves?

- Depending on the level of expertise, some individuals may be able to replace the crankshaft position sensor or check the wiring, but professional diagnosis and repair are recommended for accurate and reliable results.

9. How long does it typically take to repair OBDII code P0338 in a Nissan caused by a high circuit issue with the Crankshaft Position Sensor 'A'?

- The repair time can vary based on the extent of the issue and the availability of parts, but it generally takes a few hours for a mechanic to complete the repair.

10. Will resetting the ECM clear OBDII code P0338 related to the Crankshaft Position Sensor 'A' Circuit High in a Nissan?

- Resetting the ECM may temporarily clear the code, but if the underlying issue with the sensor or circuit remains unresolved, the code is likely to reappear.

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