Quick Answer
P0337 means: P0337 indicates a low signal from the crankshaft position sensor.
Can I drive with P0337? Immediate attention is recommended to prevent further engine issues.
Common Questions
What does P0337 mean and how does it affect my car?
P0337 means there's a low signal from the crankshaft position sensor, which is vital for engine timing and performance. If not addressed, it can lead to poor engine performance, stalling, and could leave you stranded.
What are the most common causes of P0337 and how much does it cost to fix?
Common causes include a faulty crankshaft position sensor, damaged wiring, and corrosion. Repair costs can range from $50 for wiring repairs to $300 for sensor replacement.
Can I drive my car with P0337 or should I stop immediately?
It's not advisable to drive your vehicle with a P0337 code. Doing so can lead to severe engine performance issues, possible stalling, and could endanger your safety.
How can I diagnose P0337 myself using GeekOBD APP?
Using the GeekOBD APP, you can scan for codes, view live sensor data, and check the crankshaft position sensor's voltage to help diagnose the issue.
What vehicles are most commonly affected by P0337?
DTC P0337 is commonly found in vehicles like the 2010-2017 Ford F-150, 2006-2011 Honda Civic, and 2005-2010 Toyota Camry, among others.
How can I prevent P0337 from happening again?
Regular maintenance, including inspections of electrical connections, sensor functionality, and timely oil changes, can help prevent the recurrence of P0337.
What is P0337?
DTC P0337 indicates a low input signal from the crankshaft position sensor (CKP) 'A' circuit. This sensor is crucial for the engine management system as it monitors the position and rotational speed of the crankshaft. A malfunction in this sensor can lead to various engine performance issues, including stalling, rough idling, or difficulty starting. The 'low input' aspect typically suggests that the sensor is not sending a strong enough signal to the engine control module (ECM), which can happen due to wiring issues, a faulty sensor, or poor connections. For car owners, this means potential engine performance problems, and in some cases, the vehicle may not run at all. The P0337 code is prevalent across many vehicles, including popular models from manufacturers like Ford, Toyota, and Honda. If you see this code pop up during a diagnostic scan, it’s important not to ignore it. Addressing it promptly can help avoid more severe issues down the line and ensure your vehicle runs smoothly.
System: P - Powertrain (Engine, Transmission, Emissions)
Symptoms
Common symptoms when P0337 is present:
- Check engine light stays on constantly, indicating a malfunction in the engine management system.
- Engine hesitates during acceleration, leading to a sluggish performance that can be dangerous in traffic.
- Fuel economy decreased by 10-15%, as the engine may run inefficiently without proper sensor data.
- Difficulty starting the engine, often requiring multiple attempts before it will finally turn over.
- Rough idling or stalling while driving, which can lead to complete engine failure if not addressed.
Possible Causes
Most common causes of P0337 (ordered by frequency):
- The most common cause of P0337 is a faulty crankshaft position sensor, occurring in about 60% of cases. This sensor can wear out over time due to heat exposure and vibration.
- Another likely cause is damaged wiring or connectors in the CKP circuit, which can lead to poor signal transmission. This often happens due to exposure to oil, heat, or physical wear.
- Corrosion in the connectors is also a frequent issue. Preventive maintenance, such as regular inspections, can help identify these issues before they lead to code activation.
- A less common but serious cause is a malfunctioning engine control module (ECM), which can misinterpret signals from the sensor and cause erratic engine behavior.
- Rarely, issues with the timing belt or chain can affect the crankshaft position sensor's operation, especially if the vehicle has high mileage and has not had regular maintenance.
P0337 Repair Costs
Cost Breakdown by Repair Type
Crankshaft Position Sensor Replacement
Replacing the faulty crankshaft position sensor with a new OEM or aftermarket part.
- Total: $150 - $300
- Success rate: 90%
Wiring Repair
Repairing or replacing damaged wiring or connectors leading to the CKP sensor.
- Total: $50 - $150
- Success rate: 85%
Money-Saving Tips for P0337
- Start with the most common and least expensive repairs first
- Use GeekOBD APP to confirm diagnosis before replacing expensive parts
- Consider preventive maintenance to avoid future occurrences
- Compare prices for OEM vs aftermarket parts based on your needs
- Address the issue promptly to prevent more expensive secondary damage
Diagnostic Steps
Professional P0337 Diagnosis Process
Follow these systematic steps to accurately diagnose P0337. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes)
Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes).
Step 2: Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes)
Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes).
Step 3: Step 3: Component testing - Use a multimeter to test the crankshaft position sensor for proper voltage and continuity (20-30 minutes)
Step 3: Component testing - Use a multimeter to test the crankshaft position sensor for proper voltage and continuity (20-30 minutes).
Step 4: Step 4: System function test - Verify proper operation after repairs by clearing codes and observing sensor data with the GeekOBD APP (10-15 minutes)
Step 4: System function test - Verify proper operation after repairs by clearing codes and observing sensor data with the GeekOBD APP (10-15 minutes).
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to confirm that the repair has resolved the issue (15-20 minutes)
Step 5: Road test verification - Drive the vehicle under various conditions to confirm that the repair has resolved the issue (15-20 minutes).
Important Notes
- Always verify the repair with GeekOBD APP after completing diagnostic steps
- Clear codes and test drive to ensure the problem is resolved
- Address underlying causes to prevent code recurrence
Real Repair Case Studies
Case Study 1: Crankshaft Sensor Replacement on 2015 Ford F-150
Vehicle: 2015 Ford F-150, 85,000 miles
Problem: Customer reported check engine light and engine stalling.
Diagnosis: Scanned codes and confirmed P0337. Inspected sensor and wiring.
Solution: Replaced crankshaft position sensor and repaired faulty wiring.
Cost: $250 (sensor $150, labor $100)
Result: Customer reported improved performance and no more stalling.
Case Study 2: Wiring Repair on 2012 Honda Civic
Vehicle: 2012 Honda Civic, 60,000 miles
Problem: Check engine light on, engine hesitating during acceleration.
Diagnosis: Found P0337 during diagnostic scan; checked wiring for damage.
Solution: Repaired damaged wiring and connectors leading to the CKP sensor.
Cost: $75 (labor and parts)
Result: Engine performance restored, customer satisfied.