Quick Answer
P0559 means: P0559 indicates a malfunction in the power steering pressure sensor circuit.
Can I drive with P0559? Immediate attention is advised to avoid steering difficulties.
Common Questions
What does P0559 mean and how does it affect my car?
The P0559 code signifies an issue with the power steering pressure sensor circuit. This can lead to difficulty in steering your vehicle, which is a safety concern. If ignored, it may worsen, causing complete loss of power steering assist.
What are the most common causes of P0559 and how much does it cost to fix?
Common causes include a faulty power steering pressure sensor (costing $100 - $300), wiring issues ($50 - $150), or fluid leaks. Repair costs will vary based on the specific problem, but addressing these promptly can save you from more extensive repairs.
Can I drive my car with P0559 or should I stop immediately?
While you can drive with a P0559 code, it's not advisable. The loss of power steering assist can make your vehicle difficult to control, especially at low speeds or during turns. It's best to have it diagnosed and repaired as soon as possible.
How can I diagnose P0559 myself using GeekOBD APP?
You can use the GeekOBD APP to scan your vehicle for DTCs, view live data from the power steering pressure sensor, and check for freeze frame data to understand the conditions under which the code was triggered.
What vehicles are most commonly affected by P0559?
Commonly affected models include the 2010-2015 Ford Fusion, 2007-2011 Honda CR-V, and 2008-2013 Toyota Highlander, among others. Always check for any recalls related to the power steering system.
How can I prevent P0559 from happening again?
Regular maintenance of your power steering system, including checking fluid levels and inspecting for leaks, can help prevent recurring P0559 codes. Additionally, ensure that wiring and connections are in good condition.
What is P0559?
The P0559 diagnostic trouble code indicates a problem with the power steering pressure sensor circuit, which is crucial for the proper functioning of your vehicle's power steering system. This code is commonly found in vehicles like the 2010-2015 Ford Fusion, 2007-2011 Honda CR-V, and 2008-2013 Toyota Highlander. The power steering pressure sensor monitors the pressure in the power steering system and sends this information to the engine control unit (ECU). When the ECU detects that the signal from the sensor is outside of the expected range or is not performing as it should, it triggers the P0559 code. This can lead to various issues, such as difficulty steering, increased steering effort, or even a complete loss of power steering assist. If left unresolved, it can cause further damage to the steering system, leading to costly repairs. It's important for vehicle owners to understand this code and its implications, as it can significantly affect vehicle safety and handling.
System: P - Powertrain (Engine, Transmission, Emissions)
Symptoms
Common symptoms when P0559 is present:
- The check engine light is illuminated, indicating an issue that needs attention.
- Increased steering effort, making it harder to turn the steering wheel, especially at low speeds.
- Unusual noises from the power steering pump, which may indicate a failing sensor or pump.
- Fluid leaks near the power steering pump or hoses, potentially leading to further issues.
- Intermittent loss of power steering assist, making steering unpredictable and unsafe.
Possible Causes
Most common causes of P0559 (ordered by frequency):
- {'cause': 'Faulty power steering pressure sensor', 'likelihood': '60%', 'details': 'The sensor itself may be malfunctioning due to wear and tear, leading to incorrect pressure readings.'}
- {'cause': 'Wiring issues or poor connections', 'details': 'Damaged or corroded wiring can affect the signal sent to the ECU, triggering the P0559 code.'}
- {'cause': 'Power steering fluid leaks', 'prevention': 'Regularly check fluid levels and inspect for leaks to ensure the system is functioning properly.'}
- {'cause': 'Faulty ECU or software issues', 'details': 'In rare cases, the ECU may have a software glitch that misinterprets sensor data.'}
- {'cause': 'Failed power steering pump', 'details': 'If the pump itself is malfunctioning, it may not create the necessary pressure, leading to sensor faults.'}
P0559 Repair Costs
Cost Breakdown by Repair Type
Power Steering Pressure Sensor Replacement
Replacing the faulty power steering pressure sensor to restore proper function.
- Total: $100 - $300
- Success rate: 85%
Wiring Repair
Repairing or replacing damaged wiring or connectors in the power steering system.
- Total: $50 - $150
- Success rate: 75%
Money-Saving Tips for P0559
- 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 P0559 Diagnosis Process
Follow these systematic steps to accurately diagnose P0559. 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 or specific diagnostic tools to test the power steering pressure sensor and wiring (20-30 minutes)
Step 3: Component testing - Use a multimeter or specific diagnostic tools to test the power steering pressure sensor and wiring (20-30 minutes).
Step 4: Step 4: System function test - Verify proper operation after repairs and clear codes using GeekOBD APP (10-15 minutes)
Step 4: System function test - Verify proper operation after repairs and clear codes using GeekOBD APP (10-15 minutes).
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success (15-20 minutes)
Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success (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 in a 2012 Ford Fusion
Vehicle: 2012 Ford Fusion, 85,000 miles
Problem: Customer reported a hard steering issue and illuminated check engine light.
Diagnosis: Using the GeekOBD APP, retrieved P0559 code and performed a detailed inspection of the power steering system. Found faulty pressure sensor.
Solution: Replaced the power steering pressure sensor and cleared the code.
Cost: $220 (sensor $150, labor $70)
Result: Customer reported restored steering assist and no reoccurrence of the check engine light.
Case Study 2: Wiring Repair on a 2009 Honda CR-V
Vehicle: 2009 Honda CR-V, 110,000 miles
Problem: Customer experienced intermittent loss of power steering assist and a check engine light.
Diagnosis: Scanned vehicle and found P0559. Inspected wiring harness and found corrosion.
Solution: Repaired damaged wiring and cleaned connections.
Cost: $100 (parts and labor)
Result: Power steering assist was restored, and the check engine light stayed off.