OBD-II Generic Error Code P0337: How to Fix It
Medium 30-60 minutes Medium Severity
Verified June 2026
- Error Code
- P0337
- Brand
- OBD-II Generic
- Product Type
- automotive
- Severity
- Medium
- DIY Difficulty
- Medium
- Estimated Fix Time
- 30-60 minutes
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Tools You'll Need
- OBD2 scanner
- Digital multimeter
- Socket set
- Electrical contact cleaner
How to Fix Error Code P0337
-
Check Wiring and Connector
Ensure the ignition is off and disconnect the battery negative terminal before working on electrical components. -
Test Sensor Resistance
-
Verify Power and Ground at Sensor
Use caution to avoid shorting pins with the meter probe. -
Replace Crankshaft Position Sensor
Some sensors require an air gap adjustment; consult your service manual. -
Clear Codes and Test Drive
Parts You May Need
Crankshaft position sensor
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Crankshaft position sensor
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Crankshaft position sensor
Check Price on Amazon
Crankshaft position sensor
Check Price on Amazon
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When to Call a Professional
If after replacing the sensor and checking wiring the code returns, the issue may be a faulty ECM or a wiring short inside the harness. Professional diagnosis with advanced tools is recommended.Frequently Asked Questions
What does error code P0337 mean?
P0337 means the engine control module has detected that the crankshaft position sensor signal voltage is too low. This can cause poor performance or no start.
Can I drive with a P0337 code?
Driving is not recommended as the vehicle may stall or run poorly. It's best to diagnose and fix the issue promptly to avoid further damage.
How much to fix code P0337?
Replacing a crankshaft position sensor typically costs $100-$200 for parts and labor if done by a shop. DIY cost is around $20-$60 for the sensor.
What causes P0337?
Common causes include a faulty crankshaft position sensor, damaged wiring or connectors, a bad ECM, or corrosion at the sensor connector.
Can a bad battery cause P0337?
While a low battery can cause various sensor errors, P0337 is more likely due to the sensor itself or its circuit. Check battery voltage first if suspect.