Fault code P0337 – a step-by-step guide to diagnosing and fixing it

The meaning of error code P0337 – Crankshaft Position Sensor A Circuit Low Input

P0337: Causes, signs and repairs

Error code P0337 is displayed and the check engine light is on - what does this mean?

The OBD/EOBD system detects a problem with the crankshaft sensor signal A (low voltage). This DTC P0337 indicates that the voltage of the crankshaft sensor is below the expected range. This fault code may have slightly different names for different manufacturers, but always refers to the crankshaft sensor signal problem.

What causes can this error code have?

Defective crankshaft sensor
Damaged or corroded wiring to the crankshaft sensor
Loose or bad plug connections on the sensor
Dirty or damaged reluctor ring on the crankshaft
Faulty engine control unit (ECM/PCM)
Excessive air gap between sensor and reluctor ring
Short circuit in the sensor circuit
Defective ground connection of the sensor

What symptoms occur in parallel with fault code P0337?

Starting problems: The vehicle is difficult or impossible to start
Engine stuttering: Irregular engine running, especially when idling
Loss of power: Reduced engine power while driving
Check engine light: Permanent display of the warning light on the dashboard
Engine misfires: Noticeable misfires at various engine speeds
Stalling: Engine stalls while driving or idling

How can I fix the problem with error code P0337?

Repairing trouble code P0337 requires a systematic approach to solving the crankshaft sensor problem.
Replace the crankshaft sensor completely, using the correct OEM sensor to ensure proper signal transmission
Check all wiring from the sensor to the engine control unit and repair or replace damaged cables or connectors
Clean the reluctor ring on the crankshaft or replace if damaged to ensure a clear signal
Adjust the air gap between the sensor and reluctor ring according to the manufacturer's specifications, usually between 0.5-1.5 mm
Check the ground connections of the sensor and the engine control unit and clean or replace if corroded
Diagnose engine control unit (ECM/PCM) and replace or reprogram if defective

FAQ - Frequently asked questions about DTC P0337

Can I continue driving with error code P0337?

It is not advisable to continue driving with code P0337, as the engine could stall at any time. This represents a safety risk, especially in road traffic. An immediate repair is required.

How much does it cost to repair fault code P0337?

The repair costs for fault code P0337 vary depending on the cause: A new crankshaft sensor costs 50-150 euros, labor costs around 100-200 euros. If there are wiring problems, the costs can rise to 200-400 euros.

How can I diagnose fault code P0337 myself?

You can read out the code P0337 with an OBD scanner. Further diagnosis requires a multimeter to measure the voltage at the sensor and an oscilloscope to analyze the signal. Without specialist knowledge, you should visit a workshop.

Is the error code P0337 manufacturer-specific?

No, P0337 is a standardized EOBD code that has the same meaning for all vehicle manufacturers. However, the specific repair procedures may vary depending on the manufacturer.

How often does fault code P0337 occur?

DTC P0337 is one of the more common sensor codes, especially in vehicles with high mileage. Crankshaft sensors are wearing parts and can fail after 150,000-200,000 km.

Can a defective crankshaft sensor cause other codes?

Yes, a defective crankshaft sensor can trigger additional fault codes such as P0336, P0338 or P0339. Codes for misfiring (P0300-P0308) can also occur in parallel.

Vehicles in which fault code P0337 occurs most frequently

Error code P0337 is a widespread OBD code for crankshaft sensor problems and can occur in various vehicle brands, but is most common in the following vehicles:

Volkswagen: Golf, Passat, Polo, Tiguan, Touran (2005-2015)
Audi: A3, A4, A6, Q5, TT (2004-2014)
BMW: 3 Series, 5 Series, X3, X5, 1 Series (2006-2016)
Mercedes-Benz: C-Class, E-Class, A-Class, B-Class (2007-2017)
Opel: Astra, Corsa, Insignia, Vectra, Zafira (2004-2015)
Ford: Focus, Fiesta, Mondeo, Kuga, Galaxy (2005-2016)
Peugeot: 206, 207, 307, 308, 407 (2003-2014)
Renault: Megane, Clio, Scenic, Laguna (2004-2015)
Fiat: Punto, Bravo, Doblo, 500 (2005-2016)
Skoda: Octavia, Fabia, Superb, Yeti (2006-2015)

If the code P0337 occurs in your vehicle, you should not hesitate and have the problem rectified as quickly as possible. A defective crankshaft sensor can lead to unpredictable engine misfires and poses a significant safety risk. Have the diagnosis carried out by a qualified workshop to determine the exact cause and ensure a professional repair.

How to change front wheel bearing on MERCEDES-BENZ M W163 TUTORIAL | AUTODOC

151K views

Published on: 26/07/2018
How to change fuel filter BMW 3 (E90) [TUTORIAL AUTODOC]

241K views

Published on: 17/04/2019
How to change Front wheel bearing on VW GOLF 4 TUTORIAL | AUTODOC

177K views

Published on: 26/07/2018
How to change a rear brake pads FORD FOCUS 3 TUTORIAL | AUTODOC

169K views

Published on: 27/07/2018
How to change pollen filter / cabin filter on AUDI A6 (C6) [TUTORIAL AUTODOC]

150K views

Published on: 25/10/2019
How to change engine thermostat on PEUGEOT 207 [TUTORIAL AUTODOC]

147K views

Published on: 09/12/2020
How to change fuel filter NISSAN X-TRAIL T30 TUTORIAL | AUTODOC

139K views

Published on: 27/07/2018
How to change front wheel bearing TOYOTA YARIS XP10 TUTORIAL | AUTODOC

120K views

Published on: 26/07/2018

How to change serpentine belt on MERCEDES-BENZ A-Class (W169) – replacement guide

Free download PDF
1.38 MB
How to change engine oil and filter on BMW 1 Hatchback (F20) – replacement guide

Free download PDF
1.62 MB
How to change engine thermostat on VW Golf VI Hatchback (5K1) – replacement guide

Free download PDF
4.12 MB
How to change water pump & timing belt kit on Ford Fiesta JA8 – replacement guide

Free download PDF
7.83 MB
How to change front strut mount on AUDI A1 Hatchback (8X1, 8XK) – replacement guide

Free download PDF
3.8 MB
How to change water pump & timing belt kit on Peugeot 307 SW – replacement guide

Free download PDF
7.01 MB

Want to get more useful information?

Ask questions or share your repair experience on the car forum. Subscribe to updates so you don't miss out on new guides.

Ask on the forum

Top 5 reasons why your car squeals | AUTODOC Tips

10K views

Published on: 26/10/2023
Preventing Engine Failure: Head Gasket Inspection Tutorial | AUTODOC

12K views

Published on: 13/10/2020
How to Order Car Parts Online: Avoid These 5 Common Pitfalls

4K views

Published on: 10/03/2022
When, why, and how to change engine oil | AUTODOC tips

7K views

Published on: 16/08/2024