Quick Answer
B106B means: B106B indicates a configuration error in the Body Control Module (BCM).
Can I drive with B106B? While not immediately dangerous, it's advisable to address the issue soon to prevent further electrical problems.
Common Questions
What does B106B mean and how does it affect my car?
The B106B code signifies a configuration error in the Body Control Module (BCM), which can lead to various electronic system malfunctions. This may affect your vehicle's safety and functionality, causing issues with lights, locks, and other electronic features.
What are the most common causes of B106B and how much does it cost to fix?
Common causes include incorrect BCM settings after battery replacement, software glitches, faulty wiring, water damage, or a defective BCM. Repair costs can range from $100 for reprogramming to $800 for BCM replacement.
Can I drive my car with B106B or should I stop immediately?
While it's not an immediate safety hazard, driving with a B106B code can lead to further electrical issues. It's advisable to address the problem sooner rather than later to avoid complications.
How can I diagnose B106B myself using GeekOBD APP?
Using the GeekOBD APP, you can perform a scan of your vehicle’s systems. Look for the B106B code, review the freeze frame data for context, and follow the app's diagnostic suggestions for troubleshooting.
What vehicles are most commonly affected by B106B?
B106B is often found in Ford and Chrysler models from 2015 to 2020, including popular models like the Ford F-150 and Chrysler 300. Always check for any recalls or technical service bulletins related to your vehicle.
How can I prevent B106B from happening again?
To prevent B106B, ensure regular maintenance of your vehicle's electrical systems, promptly address any battery issues, and keep the BCM firmware updated with the latest software.
What is B106B?
The B106B diagnostic trouble code (DTC) indicates a configuration issue within the Body Control Module (BCM) of your vehicle. This code often surfaces in Ford and Chrysler models, typically from the years 2015 to 2020. The BCM is responsible for managing various electronic systems in your vehicle, including lighting, windows, and security features. When the BCM detects a mismatch between its internal configuration and the expected parameters, it triggers the B106B code. This could stem from a variety of issues, such as incorrect settings after a battery replacement, a software glitch, or even faulty wiring. In practical terms, this can lead to symptoms like malfunctioning lights, issues with central locking, or even intermittent failure of the vehicle's alarm system. Ignoring this code could lead to more significant electrical issues and affect overall vehicle safety. If you're experiencing this code, it’s crucial to diagnose it promptly to ensure all electronic systems function correctly. Addressing the B106B code usually requires professional attention, particularly if the BCM needs reprogramming to restore proper functionality.
System: B - Body (Airbags, Lighting, Security, Climate Control)
Symptoms
Common symptoms when B106B is present:
- The check engine light may illuminate or flash, indicating a problem with the vehicle's electronics.
- Malfunctioning lights, such as headlights or interior lights, may fail to operate consistently.
- The central locking system may not respond correctly, leading to difficulties locking or unlocking the doors.
- Intermittent failures in the vehicle's alarm system, causing it to activate unexpectedly.
- Electrical components like power windows or mirrors may function erratically or not at all.
Possible Causes
Most common causes of B106B (ordered by frequency):
- The most common cause is an incorrect BCM configuration, often occurring after a battery replacement or system reset, with a likelihood of about 50%.
- Another frequent cause is a software glitch or outdated firmware in the BCM, which may occur in vehicles that have not received recent software updates.
- Faulty wiring or poor connections in the BCM circuit can lead to communication errors, which is less common but serious, accounting for around 20% of cases.
- Water damage to the BCM from leaks can also trigger this error, particularly in vehicles that have been exposed to heavy rain or flooding.
- In rare instances, a defective BCM itself may cause this error, necessitating complete replacement.
B106B Repair Costs
Cost Breakdown by Repair Type
BCM Reprogramming
Reprogramming the Body Control Module to correct configuration settings.
- Total: $100 - $300
- Success rate: 90%
BCM Replacement
Replacing the Body Control Module if it is found to be defective.
- Total: $300 - $800
- Success rate: 95%
Money-Saving Tips for B106B
- 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 B106B Diagnosis Process
Follow these systematic steps to accurately diagnose B106B. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Perform an initial visual inspection to check for damaged wiring, loose connections, or signs of corrosion around the BCM (5-10 minutes)
Step 1: Perform an initial visual inspection to check for damaged wiring, loose connections, or signs of corrosion around the BCM (5-10 minutes).
Step 2: Step 2: Use a diagnostic tool like the GeekOBD APP to scan the vehicle and retrieve all codes along with freeze frame data for context (10-15 minutes)
Step 2: Use a diagnostic tool like the GeekOBD APP to scan the vehicle and retrieve all codes along with freeze frame data for context (10-15 minutes).
Step 3: Step 3: Test suspected components with a multimeter to check for proper voltage and continuity in the BCM circuit (20-30 minutes)
Step 3: Test suspected components with a multimeter to check for proper voltage and continuity in the BCM circuit (20-30 minutes).
Step 4: Step 4: If issues are found, reprogram the BCM using appropriate software, then clear the codes and verify system function (10-15 minutes)
Step 4: If issues are found, reprogram the BCM using appropriate software, then clear the codes and verify system function (10-15 minutes).
Step 5: Step 5: Conduct a road test under various conditions to confirm that the repairs successfully resolved the B106B code (15-20 minutes)
Step 5: Conduct a road test under various conditions to confirm that the repairs successfully resolved the B106B code (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: BCM Reprogramming on 2017 Ford Escape
Vehicle: 2017 Ford Escape, 45,000 miles
Problem: Customer reported malfunctioning lights and central locking issues.
Diagnosis: Diagnostic scan revealed B106B code indicating BCM configuration error.
Solution: Reprogrammed the BCM using dealership software, correcting the configuration.
Cost: $150
Result: Post-repair, all electrical systems functioned correctly, and the customer reported no further issues.
Case Study 2: BCM Replacement on 2018 Chrysler Pacifica
Vehicle: 2018 Chrysler Pacifica, 30,000 miles
Problem: Complaints of intermittent alarm activation and faulty power windows.
Diagnosis: B106B code confirmed with the GeekOBD APP; BCM showed signs of failure.
Solution: Replaced the BCM with a new unit and reprogrammed it to the vehicle's specifications.
Cost: $600
Result: Customer satisfaction restored with all systems operational and no further alarms.