P0339 Mercedes-Benz Code - Crankshaft Position Sensor 'A' Circuit Intermittent
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 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
- P0339 Mercedes-Benz indicates Crankshaft Position Sensor 'A' Circuit Intermittent.
- 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
- 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.
Code P0339 Mercedes-Benz Description
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.
What are the Possible Causes of the DTC P0339 Mercedes-Benz?
- 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 P0339 Mercedes-Benz?
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 P0339 Mercedes-Benz 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 P0339 Mercedes-Benz code?
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Frequently Asked Questions about P0339 Mercedes-Benz Code
1. What are the common symptoms of OBDII code P0339 in a Mercedes-Benz related to the Crankshaft Position Sensor 'A' Circuit Intermittent?
- Common symptoms include rough idling, stalling, difficulties starting the engine, and potential loss of power while driving.
2. What are the possible causes of OBDII code P0339 in a Mercedes-Benz?
- The code P0339 can be triggered by issues such as a faulty crankshaft position sensor, damaged wiring or connectors, or problems with the sensor's signal.
3. How can I diagnose the cause of OBDII code P0339 in my Mercedes-Benz?
- Diagnosing the issue typically involves checking the crankshaft position sensor's wiring and connections, testing the sensor itself, and verifying the signal it sends to the engine control module.
4. Can a faulty crankshaft position sensor be repaired, or does it need to be replaced?
- In most cases, a faulty crankshaft position sensor needs to be replaced rather than repaired to ensure proper functioning of the engine.
5. Are there any tips for repairing OBDII code P0339 in a Mercedes-Benz?
- It is recommended to use a genuine or high-quality replacement sensor, follow the manufacturer's instructions for installation, and clear the error code after completing the repair.
6. What are the potential risks of ignoring OBDII code P0339 in a Mercedes-Benz?
- Ignoring the code can lead to more serious engine performance issues, worsened fuel efficiency, and potential engine damage over time.
7. Can driving with OBDII code P0339 in a Mercedes-Benz cause further harm to the vehicle?
- Continuing to drive with the code may exacerbate existing problems and could potentially lead to more severe engine-related issues if left unresolved.
8. How long does it typically take to repair OBDII code P0339 in a Mercedes-Benz?
- The repair time can vary depending on the extent of the issue and the availability of parts, but it usually takes a few hours to replace the crankshaft position sensor.
9. Is it safe to drive my Mercedes-Benz with OBDII code P0339 if the vehicle seems to be running fine?
- It is not recommended to drive the vehicle with the code present, as it indicates a potential issue that could impact the engine's performance and reliability.
10. Can a DIY enthusiast with basic automotive knowledge repair OBDII code P0339 in a Mercedes-Benz?
- While some experienced DIYers may be able to replace the crankshaft position sensor, it is generally recommended to have the repair done by a qualified mechanic to ensure proper diagnosis and installation.
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