Quick Answer
P0937 means: P0937 indicates a problem with the power steering pressure sensor circuit.
Can I drive with P0937? Immediate attention is recommended to prevent steering failure.
Common Questions
What does P0937 mean and how does it affect my car?
The P0937 code indicates a problem with the power steering pressure sensor circuit, which can lead to heavy steering and increased effort required to control your vehicle. If ignored, it can compromise your vehicle's handling and safety.
What are the most common causes of P0937 and how much does it cost to fix?
Common causes include a faulty power steering pressure sensor, damaged wiring, or low fluid levels. Repair costs can range from $150 to $600 depending on the diagnosis and necessary repairs.
Can I drive my car with P0937 or should I stop immediately?
While you may be able to drive short distances, it's advisable to address the issue immediately as it could lead to a complete steering failure, resulting in dangerous driving conditions.
How can I diagnose P0937 myself using GeekOBD APP?
You can use the GeekOBD APP to scan for the P0937 code and view freeze frame data. This will help you understand the conditions under which the fault occurred, making it easier to diagnose.
What vehicles are most commonly affected by P0937?
Commonly affected vehicles include the 2010-2016 Ford Fusion, 2011-2015 Chevy Malibu, and 2012-2017 Honda Civic. Check for any recalls or technical service bulletins specific to your vehicle.
How can I prevent P0937 from happening again?
Regular maintenance, such as checking power steering fluid levels and inspecting the steering system for wear can help prevent future occurrences of the P0937 code.
What is P0937?
The diagnostic trouble code (DTC) P0937 indicates a power steering pressure sensor circuit issue, specifically a range or performance problem. This code is particularly relevant in vehicles from manufacturers like Ford, Chevrolet, and Honda. When the power steering pressure sensor fails or sends incorrect signals to the engine control module (ECM), it can lead to various symptoms, most notably increased steering effort and difficulty in maneuvering the vehicle. In the context of modern vehicles, the power steering system is crucial for safe operation, as it allows for easier steering, especially at lower speeds. If the sensor detects an abnormal pressure reading, it can trigger the check engine light and disable important features such as electronic stability control, leading to a potentially dangerous driving situation. Owners of affected vehicles should be aware that ignoring this warning can result in further damage to the steering system or even a complete failure of power steering assist, making it imperative to address the issue promptly.
System: P - Powertrain (Engine, Transmission, Emissions)
Symptoms
Common symptoms when P0937 is present:
- The check engine light stays on, indicating a fault in the power steering system.
- Steering feels heavy, especially during low-speed maneuvers, making it difficult to turn the wheel.
- Unusual noises from the steering system, such as whining or grinding, suggesting a lack of fluid pressure.
- Inconsistent power steering assistance, where the steering feels normal one moment but becomes unresponsive the next.
- Increased fuel consumption due to the engine working harder to compensate for the steering assist issue.
Possible Causes
Most common causes of P0937 (ordered by frequency):
- The most common cause is a faulty power steering pressure sensor, occurring in about 60% of cases. This sensor can wear out over time, leading to incorrect pressure readings.
- A damaged wiring harness or loose connections can cause a disruption in the signal to the ECM, accounting for roughly 25% of cases. Corrosion or frayed wires may lead to intermittent issues.
- Low power steering fluid levels can cause performance problems, although this is less common. Regularly checking and maintaining fluid levels can prevent this issue.
- Less commonly, the power steering pump may be failing, resulting in inadequate pressure being sent to the steering system.
- Rarer still, a malfunctioning ECM could misinterpret the signals from the sensor, leading to erroneous readings and triggering the P0937 code.
P0937 Repair Costs
Cost Breakdown by Repair Type
Power Steering Pressure Sensor Replacement
Replacing the faulty pressure sensor with a new OEM or aftermarket part.
- Total: $150 - $300
- Success rate: 90%
Wiring Harness Repair
Repairing or replacing damaged wiring or connectors.
- Total: $100 - $200
- Success rate: 80%
Power Steering Pump Replacement
Complete replacement of the power steering pump if found to be faulty.
- Total: $300 - $600
- Success rate: 75%
Money-Saving Tips for P0937
- 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 P0937 Diagnosis Process
Follow these systematic steps to accurately diagnose P0937. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Begin with an initial visual inspection of the power steering system
Step 1: Begin with an initial visual inspection of the power steering system. Look for signs of damage, such as cracked hoses, loose connections, or visible leaks (5-10 minutes).
Step 2: Step 2: Use an OBD2 scanner, such as the GeekOBD APP, to retrieve the P0937 code along with any other stored codes and freeze frame data to get context on when the fault occurred (10-15 minutes)
Step 2: Use an OBD2 scanner, such as the GeekOBD APP, to retrieve the P0937 code along with any other stored codes and freeze frame data to get context on when the fault occurred (10-15 minutes).
Step 3: Step 3: Conduct component testing of the power steering pressure sensor using a multimeter to ensure it is within specified voltage ranges (20-30 minutes)
Step 3: Conduct component testing of the power steering pressure sensor using a multimeter to ensure it is within specified voltage ranges (20-30 minutes).
Step 4: Step 4: Perform a system function test by simulating steering conditions to verify the sensor's output and to check for any erratic behavior after repairs (10-15 minutes)
Step 4: Perform a system function test by simulating steering conditions to verify the sensor's output and to check for any erratic behavior after repairs (10-15 minutes).
Step 5: Step 5: Complete a road test under various driving conditions to confirm the repair was successful and that the power steering operates normally again (15-20 minutes)
Step 5: Complete a road test under various driving conditions to confirm the repair was successful and that the power steering operates normally again (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: Power Steering Pressure Sensor Replacement on a 2014 Ford Fusion
Vehicle: 2014 Ford Fusion, 75,000 miles
Problem: Customer reported heavy steering and check engine light illuminated.
Diagnosis: An OBD2 scan revealed P0937. Visual inspection showed a damaged power steering pressure sensor.
Solution: Replaced the power steering pressure sensor and topped off the fluid.
Cost: $220 (sensor $150, labor $70)
Result: Steering returned to normal operation, and the check engine light was cleared.
Case Study 2: Wiring Harness Repair on a 2012 Honda Civic
Vehicle: 2012 Honda Civic, 90,000 miles
Problem: Customer complained of intermittent steering assistance and warning light on.
Diagnosis: OBD2 scan showed P0937. Inspected wiring and found frayed wires in the harness.
Solution: Repaired the damaged wiring and secured all connections.
Cost: $150 (parts and labor)
Result: Resolved the issue and restored full power steering functionality.