Quick Answer

C0FA6 means: C0FA6 indicates a malfunction with the steering angle sensor.

Fix: Check and replace faulty components Cost: $150 - $300 Time: 90-180 minutes

Can I drive with C0FA6? Immediate attention is recommended to ensure vehicle safety.

Common Questions

What does C0FA6 mean and how does it affect my car?

The C0FA6 code indicates an issue with the steering angle sensor, which can lead to poor steering response and potential safety risks. It's crucial to address this issue quickly to maintain safe driving conditions.

What are the most common causes of C0FA6 and how much does it cost to fix?

Common causes of the C0FA6 code include a faulty steering angle sensor or loose wiring. Repair costs typically range from $150 to $300 depending on the specific issue and required parts.

Can I drive my car with C0FA6 or should I stop immediately?

It's advisable to stop driving immediately if you see the C0FA6 code. Continuing to drive can lead to loss of steering control, which poses serious safety risks.

How can I diagnose C0FA6 myself using GeekOBD APP?

To diagnose C0FA6 using the GeekOBD APP, connect your device to the vehicle's OBD2 port, scan for codes, and review the freeze frame data for insights into the driving conditions when the code triggered.

What vehicles are most commonly affected by C0FA6?

The C0FA6 code frequently appears in 2015-2018 Ford F-Series, Lincoln MKX, and specific models within the Ford and Lincoln lineups. Always check for any recalls related to the steering system.

How can I prevent C0FA6 from happening again?

Regular maintenance, including checking the steering system and ensuring proper calibration after service or repairs, can help prevent the C0FA6 code from recurring.

What is C0FA6?

The DTC C0FA6 code typically indicates a problem with the vehicle's steering angle sensor, particularly in models such as the 2015-2018 Ford F-Series and Lincoln MKX. This code signifies that the steering angle sensor is either malfunctioning or sending incorrect data to the vehicle's computer system. The steering angle sensor is crucial for various functions, including stability control and adaptive cruise control, making it an essential component for vehicle safety. When C0FA6 is triggered, drivers may experience erratic steering behavior, loss of control during turns, or even the activation of stability control systems, which could lead to more significant safety issues if not addressed promptly. Ignoring this code may result in further damage to the vehicle's steering system and can affect the overall driving experience. Therefore, understanding the implications of this code is critical for maintaining vehicle safety and performance.

System: C - Chassis (ABS, Steering, Suspension)

Symptoms

Common symptoms when C0FA6 is present:

  • The check engine light remains illuminated, indicating a persistent issue with the steering angle sensor.
  • Drivers may notice that the steering feels unresponsive or exhibits a delay when turning, which can be alarming.
  • Fuel economy can decrease by approximately 10-15% due to the vehicle's stability control systems working harder to compensate for the sensor error.
  • Erratic steering responses can occur, especially during sudden maneuvers, making it challenging to control the vehicle.
  • Warning messages related to stability control may appear on the dashboard, signaling a critical system failure.

Possible Causes

Most common causes of C0FA6 (ordered by frequency):

  1. The most common cause is a faulty steering angle sensor, with a likelihood of around 70%. This sensor may become damaged due to wear and tear or exposure to moisture.
  2. A loose or damaged wiring harness can also trigger this code, preventing the sensor from communicating effectively with the vehicle's computer.
  3. Improper calibration after wheel alignment or suspension work can lead to the steering angle sensor reporting erroneous data.
  4. Less common but serious causes include failure of the power steering control module, which can affect the entire steering system.
  5. In rare cases, software glitches in the vehicle's control module can lead to false readings, causing the C0FA6 code to appear.

C0FA6 Repair Costs

Cost Breakdown by Repair Type

Steering Angle Sensor Replacement

Replacing a faulty steering angle sensor to restore proper vehicle function.

  • Total: $150 - $300
  • Success rate: 95%
Wiring Repair

Repairing damaged wiring or connectors that may be affecting the sensor's operation.

  • Total: $100 - $200
  • Success rate: 85%
Money-Saving Tips for C0FA6
  • 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 C0FA6 Diagnosis Process

Follow these systematic steps to accurately diagnose C0FA6. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Initial visual inspection - Check for visible damage to wiring, loose connections, or corrosion on the steering angle sensor (5-10 minutes)

Step 1: Initial visual inspection - Check for visible damage to wiring, loose connections, or corrosion on the steering angle sensor (5-10 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 2: Step 2: OBD2 scan with GeekOBD APP - Use the app to retrieve all codes and freeze frame data, providing context for the C0FA6 code (10-15 minutes)

Step 2: OBD2 scan with GeekOBD APP - Use the app to retrieve all codes and freeze frame data, providing context for the C0FA6 code (10-15 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 3: Step 3: Component testing - Employ a multimeter to measure the voltage and resistance of the steering angle sensor (20-30 minutes)

Step 3: Component testing - Employ a multimeter to measure the voltage and resistance of the steering angle sensor (20-30 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 4: Step 4: System function test - After repairs, verify that the steering angle sensor is functioning correctly by performing a calibration test (10-15 minutes)

Step 4: System function test - After repairs, verify that the steering angle sensor is functioning correctly by performing a calibration test (10-15 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to ensure the code does not reappear and that all systems are functioning properly (15-20 minutes)

Step 5: Road test verification - Drive the vehicle under various conditions to ensure the code does not reappear and that all systems are functioning properly (15-20 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.

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: Steering Angle Sensor Replacement on 2016 Ford F-150

Vehicle: 2016 Ford F-150, 45,000 miles

Problem: Customer reported erratic steering and the check engine light was on.

Diagnosis: After scanning with the GeekOBD APP, C0FA6 was identified. A visual inspection revealed a damaged steering angle sensor.

Solution: Replaced the steering angle sensor and recalibrated the system.

Cost: $250 (parts: $150 for the sensor, $100 for labor)

Result: The customer reported that the steering was responsive again, and the check engine light remained off.

Case Study 2: Wiring Repair on 2017 Lincoln MKX

Vehicle: 2017 Lincoln MKX, 30,000 miles

Problem: Customer experienced warning messages for stability control and poor steering response.

Diagnosis: Diagnostic testing revealed C0FA6, and further inspection identified a loose wiring harness.

Solution: Secured the wiring connections and performed a system recalibration.

Cost: $150 (parts: $50 for connectors, $100 for labor)

Result: Stability control warnings disappeared, and steering function was restored.

Diagnose C0FA6

Use GeekOBD APP for professional diagnosis!

  • Real-time data monitoring
  • Advanced diagnostic features
  • Step-by-step repair guidance
  • Professional-grade analysis

Code Information

Code: C0FA6
System: Chassis (ABS, Steering, Suspension)
Severity: HIGH
Category: Chassis Codes