C0CA5 - Understanding the Diagnostic Trouble Code for 2016-2020 Ford Explorer and Other Models

Quick Answer

C0CA5 means: C0CA5 indicates a communication issue with the steering angle sensor.

Fix: Check and replace faulty components Cost: $150 - $400 Time: 90-180 minutes

Can I drive with C0CA5? Immediate attention is recommended to ensure vehicle safety.

Common Questions

What does C0CA5 mean and how does it affect my car?

The C0CA5 code indicates a problem with the steering angle sensor, which can affect your vehicle's handling and stability. If left unaddressed, it could lead to unsafe driving conditions, particularly in adverse weather.

What are the most common causes of C0CA5 and how much does it cost to fix?

Common causes of C0CA5 include faulty sensors, damaged wiring, or software issues. Repair costs can range from $100 for wiring repairs to $400 for a full sensor replacement, depending on labor and parts needed.

Can I drive my car with C0CA5 or should I stop immediately?

It's advisable to stop driving immediately if you see the C0CA5 code. Ignoring it can lead to loss of control or other safety features being disabled, which is risky.

How can I diagnose C0CA5 myself using GeekOBD APP?

With the GeekOBD APP, you can perform a diagnostic scan to retrieve the C0CA5 code and any other related codes. You can also view live data from the steering angle sensor to assess its functionality.

What vehicles are most commonly affected by C0CA5?

The C0CA5 code frequently appears in 2016-2020 Ford Explorer models, among others equipped with advanced driver-assistance systems. It's important to stay updated on recalls or technical service bulletins related to this issue.

How can I prevent C0CA5 from happening again?

Regular maintenance, including checking the steering system and ensuring all connections are clean and tight, can help prevent issues that may trigger the C0CA5 code.

What is C0CA5?

The DTC C0CA5 is a trouble code that indicates a communication issue in the vehicle's advanced driver-assistance systems (ADAS), specifically related to the steering angle sensor or its circuit. This code is prevalent in models like the 2016-2020 Ford Explorer and other vehicles utilizing similar ADAS technology. When the C0CA5 code is triggered, it suggests that the vehicle's systems are unable to communicate effectively with the steering angle sensor, which is critical for functions like electronic stability control and adaptive cruise control. The implications can range from minor inconveniences like a warning light on the dashboard to more serious concerns involving the vehicle's handling and safety features. Ignoring this code may lead to compromised vehicle safety, particularly in adverse driving conditions. Additionally, if the steering angle sensor is not calibrated correctly, it could lead to premature tire wear and alignment issues, resulting in increased maintenance costs over time. To ensure safety and reliability, addressing the C0CA5 code promptly is crucial.

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

Symptoms

Common symptoms when C0CA5 is present:

  • The check engine light or warning light for the steering system stays on, indicating a fault that needs addressing.
  • The vehicle may exhibit unusual handling characteristics, such as inconsistent steering response or difficulty in maintaining a straight line.
  • Drivers might notice a decrease in fuel economy, potentially due to the vehicle's stability control system being compromised.
  • The steering wheel may feel off-center, affecting the driver's ability to control the vehicle effectively.
  • In some cases, the adaptive cruise control may become non-functional, impacting the driver’s ability to maintain safe distances automatically.

Possible Causes

Most common causes of C0CA5 (ordered by frequency):

  1. The most common cause of the C0CA5 code is a faulty steering angle sensor, with a likelihood of around 50%. This can occur due to wear and tear or a poor connection.
  2. A second common cause is damaged wiring or connectors related to the steering angle sensor, which can disrupt communication with the vehicle's ECM.
  3. Another possible cause is a software glitch within the vehicle's ADAS, which can sometimes be resolved through firmware updates.
  4. Less frequently, the steering column itself may be misaligned or damaged, which could affect the sensor's readings and lead to this code.
  5. In rare cases, a failing electronic control module (ECM) could misinterpret signals from the steering angle sensor, leading to the C0CA5 code.

C0CA5 Repair Costs

Cost Breakdown by Repair Type

Steering Angle Sensor Replacement

Replacing the faulty steering angle sensor is often required if it is found to be defective.

  • Total: $150 - $400
  • Success rate: 90%
Wiring Repair

Repairing damaged wiring or connectors can resolve communication issues.

  • Total: $100 - $300
  • Success rate: 80%
Software Update

Updating the vehicle's software can fix underlying glitches causing the C0CA5 code.

  • Total: $50 - $150
  • Success rate: 70%
Money-Saving Tips for C0CA5
  • 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 C0CA5 Diagnosis Process

Follow these systematic steps to accurately diagnose C0CA5. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Conduct an initial visual inspection to check for obvious signs like damaged wiring, loose connections, or corrosion specifically around the steering angle sensor (5-10 minutes)

Step 1: Conduct an initial visual inspection to check for obvious signs like damaged wiring, loose connections, or corrosion specifically around 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: Use an OBD2 scanner or the GeekOBD APP to retrieve all codes and freeze frame data for context around the C0CA5 code (10-15 minutes)

Step 2: Use an OBD2 scanner or the GeekOBD APP to retrieve all codes and freeze frame data for context around the C0CA5 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: Perform component testing with a multimeter to assess the functionality of the steering angle sensor and its wiring (20-30 minutes)

Step 3: Perform component testing with a multimeter to assess the functionality of the steering angle sensor and its wiring (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: Execute a system function test to verify proper operation of the steering angle sensor after repairs and clear any codes (10-15 minutes)

Step 4: Execute a system function test to verify proper operation of the steering angle sensor after repairs and clear any 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: Conduct a road test under various conditions to ensure the vehicle operates correctly and the C0CA5 code does not reappear (15-20 minutes)

Step 5: Conduct a road test under various conditions to ensure the vehicle operates correctly and the C0CA5 code does not reappear (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 2018 Ford Explorer

Vehicle: 2018 Ford Explorer, 65,000 miles

Problem: Customer reported a persistent check engine light and unusual steering response.

Diagnosis: Diagnostic scan revealed C0CA5 code. Visual inspection showed a damaged steering angle sensor.

Solution: Replaced the steering angle sensor and recalibrated the system. Cleared the codes and performed a road test.

Cost: $350 (sensor: $250, labor: $100)

Result: The vehicle's handling improved, and the check engine light remained off post-repair.

Case Study 2: Wiring Repair on 2017 Ford Edge

Vehicle: 2017 Ford Edge, 50,000 miles

Problem: Customer noticed a steering warning light and inconsistent steering behavior.

Diagnosis: C0CA5 code was present; visual inspection revealed frayed wiring near the steering column.

Solution: Repaired the wiring and ensured all connections were secure. Cleared the codes.

Cost: $200 (labor: $100, wiring repair: $100)

Result: The warning light turned off, and the steering performance returned to normal.

Diagnose C0CA5

Use GeekOBD APP for professional diagnosis!

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  • Step-by-step repair guidance
  • Professional-grade analysis
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Code Information

Code: C0CA5
System: Chassis (ABS, Steering, Suspension)
Severity: HIGH
Category: Chassis Codes