Quick Answer
B107F means: B107F indicates a malfunction in the Body Control Module's communication with the vehicle's electrical system.
Can I drive with B107F? Address the issue promptly to avoid further electrical system failures.
Common Questions
What does B107F mean and how does it affect my car?
B107F indicates a malfunction in the Body Control Module's communication with the vehicle's electrical systems. It can lead to issues like flickering lights and malfunctioning locks, which may not be immediately dangerous but can escalate if ignored.
What are the most common causes of B107F and how much does it cost to fix?
Common causes include a weak battery (cost $100 - $200 to replace), a faulty Body Control Module (cost $300 - $800), and wiring issues ($50 - $150). The prices vary based on labor and parts needed.
Can I drive my car with B107F or should I stop immediately?
While you may be able to drive your car, it's advisable to address the B107F code as soon as possible to prevent further electrical issues and ensure safety.
How can I diagnose B107F myself using GeekOBD APP?
With the GeekOBD APP, you can scan your vehicle for trouble codes, check live data for voltage levels at the BCM, and clear codes after repairs to monitor if the issue reoccurs.
What vehicles are most commonly affected by B107F?
DTC B107F is commonly found in 2014-2020 Ford Fusion models, Lincoln MKZ, and other vehicles with similar BCM configurations. Always check for recalls or technical service bulletins related to electrical issues.
How can I prevent B107F from happening again?
Regularly inspect your vehicle's battery, ensure all electrical connections are clean and tight, and keep your vehicle's software updated to prevent future occurrences of B107F.
What is B107F?
DTC B107F is a diagnostic trouble code that indicates a problem related to the vehicle's Body Control Module (BCM) and its communication with the powertrain control module (PCM). This specific code typically arises when the BCM detects an issue with the battery voltage or a malfunction within the electrical system that could affect various vehicle functions, including lighting, locks, and other critical systems. When B107F is triggered, it can lead to symptoms such as flickering lights, malfunctioning power windows, or, in some cases, a complete failure of these systems. For vehicle owners, it's crucial to understand that while this code might not immediately affect drivability, it can lead to more significant electrical issues over time if left unresolved. Addressing B107F quickly not only ensures that your vehicle operates correctly but also prevents additional strain on the electrical system, which could result in costly repairs down the line. If you own a 2014-2020 Ford Fusion, Lincoln MKZ, or similar models, being aware of this code can help you take proactive measures to maintain your vehicle's electrical health.
System: B - Body (Airbags, Lighting, Security, Climate Control)
Symptoms
Common symptoms when B107F is present:
- The dashboard warning lights, especially the check engine light, may illuminate, indicating a potential electrical issue that needs attention.
- Power windows may operate intermittently or fail to respond altogether, causing frustration while trying to operate them.
- You might notice flickering or dimming of the exterior lights, especially when using other electrical components simultaneously.
- The vehicle's central locking system may not function correctly, leaving doors unable to lock or unlock as intended.
- In some cases, you may experience battery drain, leading to difficulty starting the vehicle or frequent dead batteries.
Possible Causes
Most common causes of B107F (ordered by frequency):
- The most common cause of B107F is a weak battery or poor battery connections, with approximately 40% of cases resulting from these issues. Ensuring your battery is in good condition and connections are clean can prevent this code from appearing.
- Another frequent cause is a faulty Body Control Module, which can malfunction due to age or water intrusion. This can lead to improper communication with other electronic systems in your vehicle.
- Wiring issues, such as frayed wires or corroded connectors, can also trigger this code. Regularly inspecting wiring for signs of wear can help you catch potential problems early.
- Less common but serious causes include a failing alternator, which may not provide sufficient voltage to the BCM and other systems, leading to a cascade of issues.
- Rarely, software glitches in the BCM can cause B107F to appear. Keeping your vehicle's software updated is essential to avoid these problems.
B107F Repair Costs
Cost Breakdown by Repair Type
Battery Replacement
Replacing a weak or old battery can resolve B107F if the battery is the root cause.
- Total: $100 - $200
- Success rate: 90%
Body Control Module Replacement
If the BCM is faulty, replacing it may be necessary. This typically involves reprogramming the new module to your vehicle.
- Total: $300 - $800
- Success rate: 85%
Electrical Inspection and Repair
Repairing damaged wiring or connections can be less expensive than component replacement.
- Total: $50 - $150
- Success rate: 80%
Money-Saving Tips for B107F
- 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 B107F Diagnosis Process
Follow these systematic steps to accurately diagnose B107F. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Start with an initial visual inspection of the battery and its connections
Step 1: Start with an initial visual inspection of the battery and its connections. Look for corrosion, loose connections, or physical damage (5-10 minutes).
Step 2: Step 2: Use the GeekOBD APP to perform an OBD2 scan
Step 2: Use the GeekOBD APP to perform an OBD2 scan. This will retrieve the B107F code along with any other related codes, providing context for the issue (10-15 minutes).
Step 3: Step 3: Conduct component testing using a multimeter to check the voltage at the BCM and inspect wiring for continuity and shorts (20-30 minutes)
Step 3: Conduct component testing using a multimeter to check the voltage at the BCM and inspect wiring for continuity and shorts (20-30 minutes).
Step 4: Step 4: After repairs, perform a system function test to ensure all electrical components are operating correctly and clear the trouble codes from the system (10-15 minutes)
Step 4: After repairs, perform a system function test to ensure all electrical components are operating correctly and clear the trouble codes from the system (10-15 minutes).
Step 5: Step 5: Finally, take the vehicle for a road test under various driving conditions to ensure the issue is resolved and no new codes appear (15-20 minutes)
Step 5: Finally, take the vehicle for a road test under various driving conditions to ensure the issue is resolved and no new codes appear (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: Battery Replacement Solves B107F in 2015 Ford Fusion
Vehicle: 2015 Ford Fusion, 85,000 miles
Problem: Customer reported flickering dashboard lights and power window malfunctions.
Diagnosis: Upon scanning with the GeekOBD APP, B107F was confirmed along with a low battery voltage reading.
Solution: Replaced the battery, ensuring all connections were clean and tight.
Cost: $150 (battery cost and installation)
Result: After replacement, all systems functioned normally and the B107F code did not return.
Case Study 2: BCM Replacement Fixes Persistent B107F in 2018 Lincoln MKZ
Vehicle: 2018 Lincoln MKZ, 60,000 miles
Problem: Intermittent issues with door locks and dashboard warnings.
Diagnosis: Diagnostic tests confirmed a faulty BCM causing B107F; wiring was intact.
Solution: Replaced the BCM and reprogrammed it to the vehicle's specifications.
Cost: $700 (BCM part and programming)
Result: Post-repair testing showed no return of the B107F code, and all electrical functions were restored.