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P0337 Hyundai Code - Crankshaft Position Sensor 'A' Circuit Low Input

Quick Answer

The P0337 diagnostic trouble code (DTC) for Hyundai vehicles indicates a problem with the Crankshaft Position Sensor 'A' Circuit Low Input. Common causes include Faulty crankshaft position sensor, Damaged wiring or connectors, Damaged reluctor ring. 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
P0337 Hyundai indicates Crankshaft Position Sensor 'A' Circuit Low Input.
Common causes
Common causes include Faulty crankshaft position sensor, Damaged wiring or connectors, Damaged reluctor ring.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0337 Hyundai Description

The P0337 diagnostic trouble code (DTC) for Hyundai vehicles indicates a problem with the Crankshaft Position Sensor 'A' Circuit Low Input. The crankshaft position sensor is a vital component in the engine management system, responsible for monitoring the position and speed of the crankshaft. This information is crucial for the engine control unit (ECU) to determine the ignition timing and fuel injection timing.

OBDII Code P0337 Hyundai - Crankshaft Position Sensor 'A' Circuit Low Input
P0337 Hyundai Code - Crankshaft Position Sensor 'A' Circuit Low Input

Common Causes of P0337 Hyundai

  1. Faulty crankshaft position sensor
  2. Damaged wiring or connectors
  3. Damaged reluctor ring
  4. Issues with the ECU
  5. Incorrect installation of the sensor

Symptoms of P0337 Hyundai

  1. Engine misfires or rough idling
  2. Difficulty starting the engine
  3. Reduced fuel efficiency
  4. Stalling or hesitation during acceleration
  5. Check Engine Light illuminated on the dashboard

How to Fix P0337 Hyundai

  1. Begin by diagnosing the issue using a scan tool to confirm the P0337 code.
  2. Inspect the crankshaft position sensor and wiring for any visible damage or corrosion.
  3. Test the sensor's resistance and output signal to determine if it is functioning correctly.
  4. Replace the crankshaft position sensor if it is faulty, ensuring proper installation and alignment.
  5. Clear the DTC and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0337 Hyundai

The typical repair costs for addressing a P0337 code on a Hyundai vehicle can vary depending on the specific model and year. In general, the cost of a new crankshaft position sensor can range from $50 to $150, while labor costs can add another $100 to $200. Overall, the total repair cost for this issue may fall between $150 to $350. It's important to keep in mind that these estimates are approximate and can vary based on factors such as location, shop rates, and additional repairs needed. Be sure to consult with a qualified mechanic or repair shop for a more accurate cost estimate.

What does this mean?

Tech Notes for P0337 Hyundai

Sometimes and in some models, low battery voltage or a weak starter can trigger a Crankshaft Position Sensor code. Before replacing any parts, recharge or replaced battery.

When is the Code Detected?

The crankshaft position sensor (POS) signal sent to the Electronic Control Module (ECM) is low

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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 P0337 Hyundai Code

1. What are the common symptoms of OBDII code P0337 in a Hyundai related to the Crankshaft Position Sensor 'A' Circuit Low Input?

The common symptoms include engine stalling, rough idling, difficulty starting the engine, and a decrease in fuel efficiency.

2. What are the possible causes of OBDII code P0337 in a Hyundai related to the Crankshaft Position Sensor 'A' Circuit Low Input?

Potential causes include a faulty crankshaft position sensor, damaged sensor wiring or connectors, issues with the sensor's signal, or a damaged reluctor ring.

3. How can I diagnose OBDII code P0337 in a Hyundai related to the Crankshaft Position Sensor 'A' Circuit Low Input?

Diagnosis involves using a scan tool to read the code, checking the sensor's wiring and connectors for damage, testing the sensor's output signal, and inspecting the reluctor ring for damage.

4. Can I drive my Hyundai with OBDII code P0337 related to the Crankshaft Position Sensor 'A' Circuit Low Input?

It is not recommended to drive the vehicle with this code present, as it can lead to further engine damage and potential safety hazards.

5. How do I repair OBDII code P0337 in a Hyundai related to the Crankshaft Position Sensor 'A' Circuit Low Input?

Repair typically involves replacing the faulty crankshaft position sensor, repairing any damaged wiring or connectors, or addressing issues with the reluctor ring.

6. Are there any tips for preventing OBDII code P0337 related to the Crankshaft Position Sensor 'A' Circuit Low Input in a Hyundai?

Regular maintenance, such as checking and replacing the crankshaft position sensor as recommended by the manufacturer, can help prevent this code from occurring.

7. Can a DIY enthusiast fix OBDII code P0337 related to the Crankshaft Position Sensor 'A' Circuit Low Input in a Hyundai?

While some may be able to replace the sensor themselves, diagnosing and repairing electrical issues can be complex, so it's best to consult a qualified mechanic for accurate diagnosis and repair.

8. How long does it take to repair OBDII code P0337 related to the Crankshaft Position Sensor 'A' Circuit Low Input in a Hyundai?

The repair time can vary depending on the exact cause of the issue, but it typically takes a few hours to diagnose and replace the crankshaft position sensor.

9. What is the average cost to repair OBDII code P0337 related to the Crankshaft Position Sensor 'A' Circuit Low Input in a Hyundai?

The cost can vary based on labor rates and the price of parts, but replacing the crankshaft position sensor can range from $100 to $300, including parts and labor.

10. Can OBDII code P0337 related to the Crankshaft Position Sensor 'A' Circuit Low Input cause further damage if left unrepaired in a Hyundai?

Continuing to drive with this code present can potentially lead to more severe engine issues and should be addressed promptly to avoid costly repairs in the future.

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