P0335 Technical Description
Crankshaft Position Sensor “A” Circuit
If you’re seeing the P0335 code, this guide will help you understand what it means and how to fix it.
I’ve tackled this issue many times, so you’re in good hands.
In this article, you’ll learn about the P0335 code’s meaning, symptoms, causes, and fixes, giving you the knowledge to get your car running smoothly again.
So, let’s jump right in.
Key Takeaways
- P0335 indicates a problem with the crankshaft position sensor “A” circuit.
- Symptoms include difficulty starting, stalling, poor acceleration, and reduced fuel efficiency.
- Common causes are a faulty sensor, damaged wiring, or issues with the ECM.
- Diagnose by inspecting the sensor, wiring, and ECM, and testing with a multimeter.
- Fix by repairing or replacing the faulty components and clearing the trouble code.
- Seek professional help if you’re not comfortable with the diagnostic or repair process.
Table of ContentsShow
What Does P0335 Trouble Code Mean?
The P0335 trouble code indicates an issue with the crankshaft position sensor “A” circuit.
This sensor monitors the position and rotational speed of the crankshaft, providing vital data to the Engine Control Module (ECM). The ECM uses this information to control ignition timing and fuel injection.
When the P0335 code is triggered, it means the ECM isn’t receiving a proper signal from the crankshaft position sensor.
This can happen for several reasons: a faulty sensor, damaged wiring, or issues with the sensor’s connection.
Without accurate data from the crankshaft position sensor, the engine may run poorly or fail to start altogether.
The crankshaft position sensor plays a critical role in ensuring your engine operates efficiently. It helps synchronize the engine’s functions, ensuring that the pistons and valves move in perfect harmony.
When this sensor malfunctions, it throws off the entire engine timing, leading to performance issues.
A malfunctioning crankshaft position sensor can cause several problems, such as difficulty starting the engine, stalling, and a significant drop in fuel efficiency.
The engine may run erratically, and you might notice a lack of power during acceleration. In some cases, the engine might not start at all, leaving you stranded.
Addressing the P0335 trouble code promptly is crucial. Ignoring it can lead to more severe engine problems and costly repairs down the line.
By understanding what the P0335 code means, you can take the necessary steps to diagnose and fix the issue, ensuring your vehicle runs smoothly and efficiently.
P0335 Trouble Code Symptoms
When the P0335 trouble code appears, you’ll likely notice several symptoms. Here are the common signs:
- Difficulty starting the engine
- Engine stalling
- Poor acceleration
- Decreased fuel efficiency
- Engine misfiring
- Check Engine Light illuminated
- Engine running roughly
P0335 Trouble Code Causes
Several issues can trigger the P0335 trouble code. Here are the common causes:
- Faulty crankshaft position sensor
- Damaged or corroded wiring and connectors
- Issues with the sensor’s reluctor ring
- Failed ECM
- Crankshaft position sensor misalignment
- Electrical short or open circuit in the sensor’s wiring
How To Fix A P0335 Trouble Code
A P0335 trouble code indicates an issue with the Crankshaft Position Sensor A Circuit. This sensor monitors the crankshaft’s position and rotation speed, which is critical for the engine’s timing.
1. Check for Symptoms
Before diving into diagnostics, observe if you experience symptoms such as difficulty starting the engine, engine stalling, misfires, or a noticeable decrease in engine performance.
2. Inspect the Crankshaft Position Sensor
Locate the crankshaft position sensor, which is typically found near the crankshaft pulley, the flywheel, or the engine block. Visually inspect the sensor and its wiring for any visible damage, corrosion, or disconnections.
3. Use an OBD-II Scanner
Connect an OBD-II scanner to your vehicle’s diagnostic port and read the trouble codes. Confirm that P0335 is present and check for any additional codes that might indicate related issues.
4. Test the Sensor and Wiring
Use a multimeter to measure the resistance of the crankshaft position sensor. Refer to your vehicle’s service manual for the specific resistance value range. If the resistance is outside this range, the sensor may be faulty.
5. Check the Connector
Ensure the connector to the crankshaft position sensor is clean, secure, and free from corrosion. Sometimes, a loose or dirty connector can cause intermittent issues.
6. Replace the Crankshaft Position Sensor
If the sensor is faulty, replace it with a new one. Make sure to get an OEM (Original Equipment Manufacturer) or high-quality aftermarket sensor for reliability.
7. Repair or Replace Damaged Wiring
If the wiring is damaged, repair any broken wires or replace the entire harness if necessary. Use solder and heat shrink tubing to ensure a solid and weatherproof connection.
8. Clear the Codes
After performing the repairs, use the OBD-II scanner to clear the trouble codes from the ECM. This will reset the check engine light.
9. Test Drive
Take your vehicle for a test drive to ensure that the issue has been resolved. Monitor for any recurrence of the symptoms or the trouble code.
10. Professional Help
If the problem persists after these steps, it may indicate a more complex issue within the ECM or related components. In such cases, seeking assistance from a professional mechanic or an automotive technician is recommended.
By following these steps, you can effectively diagnose and repair the P0335 trouble code, ensuring your vehicle’s engine runs smoothly and efficiently.
Conclusion
Now you know what the P0335 trouble code means and how you can fix it.
Have you ever dealt with this issue before? Share your experience!
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