C0AFD - Understanding the Diagnostic Trouble Code for 2016-2021 Ford Explorer and Edge

Quick Answer

C0AFD means: C0AFD indicates a malfunction in the electric power steering assist system.

Fix: Check and replace faulty components Cost: $400 - $800 Time: 90-180 minutes

Can I drive with C0AFD? Immediate attention is recommended to prevent steering failure.

Common Questions

What does C0AFD mean and how does it affect my car?

C0AFD indicates a malfunction in your vehicle's electric power steering system. This can lead to steering difficulties, making it harder to control the car, especially at low speeds. If left unaddressed, it can compromise your safety and lead to more extensive repairs.

What are the most common causes of C0AFD and how much does it cost to fix?

The main causes of C0AFD include a faulty power steering control module, wiring issues, and low fluid levels. Repair costs can range from $100 for minor wiring fixes to $800 for module replacement, depending on the specific issue.

Can I drive my car with C0AFD or should I stop immediately?

It is advised not to drive your vehicle with the C0AFD code present as it can lead to a complete loss of steering assist. This poses a significant safety risk, especially in emergencies. Contact a mechanic as soon as possible.

How can I diagnose C0AFD myself using GeekOBD APP?

Using the GeekOBD APP, connect to your vehicle's OBD2 port and run a full scan to retrieve the C0AFD code. Review the freeze frame data for details on engine conditions when the code was triggered. This can help you understand the context of the issue.

What vehicles are most commonly affected by C0AFD?

C0AFD is frequently reported in 2016-2021 Ford Explorer and Edge models. These vehicles may have known recalls or technical service bulletins (TSBs) related to steering assist problems, so it's worth checking with your dealer.

How can I prevent C0AFD from happening again?

To prevent C0AFD, regularly check your power steering fluid levels, inspect wiring for wear and tear, and keep your vehicle's software updated. Routine maintenance can help catch potential issues before they lead to DTC codes.

What is C0AFD?

The C0AFD diagnostic trouble code indicates an issue with the vehicle's steering assist system, specifically related to the electric power steering control module. This code is most commonly found in 2016 to 2021 Ford Explorer and Edge models. When the C0AFD code is triggered, it signifies that the steering assist has either failed or is operating outside of its normal parameters, leading to potential safety concerns. The implications of this code can be significant, as it might cause the steering to feel heavier than usual or even lead to a complete loss of steering assist. Drivers may notice that the steering wheel becomes increasingly difficult to turn, especially at low speeds or when attempting to park. This can pose a serious risk, especially in emergency situations where quick maneuvering is required. It's essential to address this code promptly, as ignoring it can result in more severe problems and higher repair costs in the long run. Proper diagnostics, including the use of an OBD2 scanner like the GeekOBD APP, can help pinpoint the exact nature of the fault, ensuring that the right repairs are made to restore safe steering functionality.

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

Symptoms

Common symptoms when C0AFD is present:

  • The steering wheel feels unusually heavy, especially at low speeds, making maneuvering difficult.
  • Check engine light illuminates on the dashboard, indicating a potential issue with steering assist.
  • Vehicle may exhibit a loss of steering assist intermittently, leading to unpredictable handling.
  • Squeaking or grinding noises may be heard when turning the steering wheel, indicating mechanical wear.
  • Inconsistent steering response where the vehicle does not turn as expected or feels delayed.

Possible Causes

Most common causes of C0AFD (ordered by frequency):

  1. The most common cause of C0AFD is a faulty electric power steering control module, occurring in about 60% of cases. This module can fail due to electrical issues or software malfunctions.
  2. A second potential cause is a wiring issue or loose connection in the steering assist system. Corrosion or damage can disrupt the flow of power, leading to steering problems.
  3. Another cause may be low power steering fluid levels, which can affect the system's performance. Regular checks can prevent this issue.
  4. Less commonly, a malfunctioning steering angle sensor can trigger the C0AFD code. This sensor helps the vehicle understand the driver's steering intentions.
  5. In rare cases, a complete failure of the electric steering motor might occur, requiring full component replacement and significant repair costs.

C0AFD Repair Costs

Cost Breakdown by Repair Type

Power Steering Control Module Replacement

Replacing the faulty electric power steering control module to restore proper steering functionality.

  • Total: $400 - $800
  • Success rate: 90%
Steering Angle Sensor Calibration

Calibrating or replacing the steering angle sensor if it is found to be faulty.

  • Total: $150 - $250
  • Success rate: 85%
Wiring Repair

Repairing or replacing damaged wiring or connectors in the steering assist system.

  • Total: $100 - $300
  • Success rate: 75%
Money-Saving Tips for C0AFD
  • 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 C0AFD Diagnosis Process

Follow these systematic steps to accurately diagnose C0AFD. 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 in the steering assist system (5-10 minutes)

Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion in the steering assist system (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 - 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).

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 - Use a multimeter to test the power steering control module and ensure proper voltage and ground (20-30 minutes)

Step 3: Component testing - Use a multimeter to test the power steering control module and ensure proper voltage and ground (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 - Verify proper operation of the steering assist after any repairs made and clear codes (10-15 minutes)

Step 4: System function test - Verify proper operation of the steering assist after any repairs made and clear codes (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 confirm repair success and ensure no additional codes appear (15-20 minutes)

Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success and ensure no additional codes appear (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: Repairing Power Steering Control Module on a 2017 Ford Explorer

Vehicle: 2017 Ford Explorer, 45,000 miles

Problem: Customer reported heavy steering and illuminated check engine light.

Diagnosis: After scanning with the GeekOBD APP, the C0AFD code was found. A visual inspection revealed a faulty power steering control module.

Solution: Replaced the power steering control module and recalibrated the system.

Cost: $650 (parts: $500, labor: $150)

Result: Post-repair, the steering was restored to normal functionality, and no further codes appeared.

Case Study 2: Wiring Repair for Steering Assist Issue in a 2018 Ford Edge

Vehicle: 2018 Ford Edge, 30,000 miles

Problem: Customer experienced intermittent loss of steering assist.

Diagnosis: Using the GeekOBD APP, the C0AFD code was retrieved. Inspection indicated damaged wiring in the steering harness.

Solution: Repaired the wiring harness and secured all connections.

Cost: $200 (parts: $50, labor: $150)

Result: The vehicle's steering performance improved significantly, and the issue did not recur.

Diagnose C0AFD

Use GeekOBD APP for professional diagnosis!

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

Code: C0AFD
System: Chassis (ABS, Steering, Suspension)
Severity: HIGH
Category: Chassis Codes