C0F4E - Common Diagnostic Trouble Code in 2016-2020 Ford Explorer and Other Models

Quick Answer

C0F4E means: C0F4E indicates a communication failure between the body control module and other systems.

Fix: Check and replace faulty components Cost: $300 - $500 Time: 90-180 minutes

Can I drive with C0F4E? Immediate attention is needed to prevent further vehicle issues.

Common Questions

What does C0F4E mean and how does it affect my car?

C0F4E indicates a communication issue between the body control module and the powertrain control module, which can lead to various electrical and performance problems in your vehicle. If left unaddressed, it may result in a decrease in drivability and safety.

What are the most common causes of C0F4E and how much does it cost to fix?

Common causes include a faulty body control module, damaged wiring, and moisture intrusion. Repair costs can range from $100 for wiring repairs to $500 for BCM replacement, depending on the severity and nature of the issue.

Can I drive my car with C0F4E or should I stop immediately?

While you may be able to drive your vehicle with the C0F4E code, it is not advisable due to potential safety risks and further damage. It’s best to address the issue as soon as possible.

How can I diagnose C0F4E myself using GeekOBD APP?

To diagnose C0F4E using the GeekOBD APP, connect your device to the OBD2 port, scan for trouble codes, and check the freeze frame data to understand the conditions when the code was triggered.

What vehicles are most commonly affected by C0F4E?

The C0F4E code is most commonly found in Ford vehicles, particularly the 2016-2020 Ford Explorer. Other models within this production range may also exhibit similar issues.

How can I prevent C0F4E from happening again?

Regular maintenance checks of the vehicle's electrical systems, ensuring proper sealing of electrical connectors, and avoiding exposure to moisture can help prevent the recurrence of C0F4E.

What is C0F4E?

The diagnostic trouble code (DTC) C0F4E signifies a communication issue within the vehicle's control module systems, particularly affecting the body control module (BCM) and the powertrain control module (PCM). This code is most commonly observed in certain Ford vehicles, including the Ford Explorer manufactured between 2016 and 2020. When C0F4E triggers, it often indicates that the BCM is unable to establish proper communication with the PCM or other related modules. This can lead to a variety of operational issues within the vehicle, including malfunctioning electrical systems, issues with the vehicle's ignition system, and even erratic behavior of dashboard warning lights. It’s important to address this issue promptly, as neglecting it could lead to more severe problems that affect vehicle drivability and safety. The C0F4E code is part of the On-Board Diagnostics II (OBD2) framework, which means it is crucial for vehicle emissions control and can affect the overall functionality of the vehicle. If you encounter this code, it is advisable to have a professional technician conduct a thorough diagnostic to pinpoint the specific cause and implement the necessary repairs.

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

Symptoms

Common symptoms when C0F4E is present:

  • Check engine light remains illuminated, indicating a fault that needs attention.
  • Electrical components such as power windows or locks may operate erratically or not at all, making the vehicle less convenient to use.
  • Dashboard warning lights may flash intermittently, causing confusion and potential distraction while driving.
  • The vehicle may experience difficulty starting, leading to frustration and potential delays in use.
  • In some cases, the vehicle's fuel economy may decrease as the engine management systems struggle to operate optimally.

Possible Causes

Most common causes of C0F4E (ordered by frequency):

  1. The most common cause of the C0F4E code is a faulty body control module (BCM), which is responsible for managing communication between various vehicle systems. This issue is likely to occur in about 60% of cases.
  2. Another frequent cause is damaged wiring or poor connections in the communication network, which can lead to intermittent connectivity issues. This is particularly common in vehicles exposed to harsh environmental conditions.
  3. Moisture intrusion into electrical connectors or the BCM itself can also lead to faults, especially in older models or those with a history of water leaks.
  4. Less common but serious causes may include a failure in the powertrain control module (PCM), which can disrupt multiple vehicle functions and potentially lead to safety issues.
  5. In rare cases, software glitches within the BCM or PCM may also trigger the C0F4E code, requiring a software update or reprogramming to resolve.

C0F4E Repair Costs

Cost Breakdown by Repair Type

BCM Replacement

Replacing the faulty body control module with a new OEM part.

  • Total: $300 - $500
  • Success rate: 85%
Wiring Repair

Repairing or replacing damaged wiring and connectors that are causing communication issues.

  • Total: $100 - $300
  • Success rate: 75%
Software Update

Updating the BCM or PCM software to fix any glitches.

  • Total: $50 - $150
  • Success rate: 60%
Money-Saving Tips for C0F4E
  • 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 C0F4E Diagnosis Process

Follow these systematic steps to accurately diagnose C0F4E. 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). Look specifically at the BCM and PCM connectors.

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). This will provide insight into when the issue occurred.

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 or specific diagnostic tools to test suspected components, focusing on the BCM and wiring integrity (20-30 minutes)

Step 3: Component testing - Use a multimeter or specific diagnostic tools to test suspected components, focusing on the BCM and wiring integrity (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 after repairs and clear codes

Step 4: System function test - Verify proper operation after repairs and clear codes. Ensure that all systems communicate effectively (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 that no new codes appear (15-20 minutes)

Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success and ensure that no new 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: 2018 Ford Explorer BCM Replacement

Vehicle: 2018 Ford Explorer, 45,000 miles

Problem: Customer reported electrical issues including non-functioning power windows and persistent check engine light.

Diagnosis: Diagnostic scan revealed C0F4E. Visual inspection showed corrosion on the BCM connectors.

Solution: Replaced the body control module and repaired corroded connectors.

Cost: $450 (including parts and labor)

Result: All electrical functions returned to normal after repairs and the check engine light was cleared.

Case Study 2: 2017 Ford Fusion Software Update

Vehicle: 2017 Ford Fusion, 30,000 miles

Problem: Customer experienced intermittent starting issues and dashboard warning lights.

Diagnosis: C0F4E was triggered by a software glitch in the PCM; no physical damage found.

Solution: Performed a software update on the PCM and BCM.

Cost: $100 (software update fee)

Result: Vehicle performance improved significantly, and no further issues reported.

Diagnose C0F4E

Use GeekOBD APP for professional diagnosis!

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  • Professional-grade analysis
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Code Information

Code: C0F4E
System: Chassis (ABS, Steering, Suspension)
Severity: HIGH
Category: Chassis Codes