P0337 Mercedes-Benz Code - Crankshaft Position Sensor 'A' Circuit Low Input
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
- P0337 Mercedes-Benz indicates Crankshaft Position Sensor 'A' Circuit Low Input.
- 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 P0337 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 P0337 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 P0337 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 P0337 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 P0337 Mercedes-Benz code?
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Need Help with the Code?
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Frequently Asked Questions about P0337 Mercedes-Benz Code
1. What are the common symptoms of OBDII code P0337 in a Mercedes-Benz related to the Crankshaft Position Sensor 'A' Circuit Low Input?
- Common symptoms include rough idling, engine stalling, difficulty starting the vehicle, and a decrease in fuel efficiency.
2. What are the possible causes of OBDII code P0337 in a Mercedes-Benz?
- The code P0337 can be triggered by a faulty crankshaft position sensor, wiring issues, a damaged sensor connector, or a problem with the engine control module.
3. How can I diagnose the cause of OBDII code P0337 in my Mercedes-Benz?
- To diagnose the issue, you can perform a visual inspection of the sensor and its wiring, use a scan tool to read the code and live data, and conduct specific tests on the sensor's circuitry.
4. Can I continue driving my Mercedes-Benz with OBDII code P0337 present?
- It is not recommended to drive with the code P0337 as it can lead to further engine damage or unexpected stalling, which may compromise your safety on the road.
5. How can I repair OBDII code P0337 in my Mercedes-Benz?
- Repairing the issue involves replacing the faulty crankshaft position sensor, repairing any damaged wiring or connectors, and clearing the code with a scan tool.
6. Are there any tips to prevent OBDII code P0337 from occurring in my Mercedes-Benz?
- Regular maintenance, such as inspecting and replacing sensors as needed, checking the wiring harness for damage, and keeping the engine control module in good condition, can help prevent this code from appearing.
7. How much does it typically cost to repair OBDII code P0337 in a Mercedes-Benz at a dealership or a repair shop?
- The cost of repairing OBDII code P0337 can vary depending on the location, the labor rates, and whether genuine Mercedes-Benz parts are used. It is advisable to get estimates from different shops before proceeding with the repair.
8. Can a DIY enthusiast fix OBDII code P0337 in a Mercedes-Benz?
- If you have the necessary tools, knowledge, and experience working on automotive electrical systems, you may be able to replace the crankshaft position sensor and address the wiring issues yourself. However, it is recommended to consult a professional if you are unsure.
9. Will resetting the OBDII code P0337 in my Mercedes-Benz make it go away permanently?
- Resetting the code may temporarily turn off the check engine light, but if the underlying issue causing code P0337 is not addressed, the code is likely to reappear once the vehicle is driven again.
10. Is OBDII code P0337 in a Mercedes-Benz a common issue among owners?
- While not as common as some other OBDII codes, P0337 related to the crankshaft position sensor can occur in older Mercedes-Benz models or vehicles with high mileage, especially if regular maintenance has been neglected.
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