Quick Answer
B1670 means: B1670 indicates a fault in the Body Control Module, affecting multiple electronic systems.
Can I drive with B1670? Immediate attention is recommended to prevent further electrical issues.
Common Questions
What does B1670 mean and how does it affect my car?
The B1670 code indicates a problem with your vehicle's Body Control Module (BCM). This can affect various electrical systems, such as lighting and security features. If ignored, it might lead to further electrical failures or complete BCM failure, which could be costly.
What are the most common causes of B1670 and how much does it cost to fix?
Common causes include a faulty BCM, damaged wiring, or corrosion. Repair costs can range from $100 for wiring repairs to $600 for BCM replacement, depending on the severity of the issue.
Can I drive my car with B1670 or should I stop immediately?
It's advisable to address the B1670 code promptly, as it can lead to malfunctioning electrical systems, which could compromise safety and vehicle functionality. If you notice significant issues, it's best to avoid driving until it's diagnosed.
How can I diagnose B1670 myself using GeekOBD APP?
Using the GeekOBD APP, connect to your vehicle's OBD2 port and run a diagnostic scan. Look for the B1670 code, and check freeze frame data to understand when the fault occurred. This can help pinpoint the issue.
What vehicles are most commonly affected by B1670?
The B1670 code is frequently found in vehicles like the 2010-2015 Honda Accord, 2007-2011 Toyota Camry, and 2007-2014 Ford F-150. Always check for any recalls or technical service bulletins related to your vehicle.
How can I prevent B1670 from happening again?
To prevent B1670, regularly inspect and maintain your vehicle’s electrical systems, ensuring connections are clean and secure. Avoid installing aftermarket electrical components that could interfere with the BCM.
What is B1670?
DTC B1670 is a diagnostic trouble code indicating a fault related to the Body Control Module (BCM). The BCM plays a crucial role in managing various electronic components in your vehicle, such as lighting, security systems, and power windows. When this code is triggered, it typically signifies that the BCM is experiencing issues, which can lead to malfunctioning of these systems. In real-world terms, if your vehicle displays the B1670 code, you might encounter symptoms such as intermittent failures in the vehicle's electrical components or warning lights on the dashboard. Commonly affected vehicles include the 2010-2015 Honda Accord, certain Toyota Camry models from 2007-2011, and Ford F-150 trucks manufactured between 2007 and 2014. Addressing DTC B1670 promptly is crucial as neglecting it may lead to more severe electrical issues or complete failure of the BCM, which can be costly to repair or replace. Therefore, understanding this code and its implications is essential for maintaining your vehicle's reliability and functionality.
System: B - Body (Airbags, Lighting, Security, Climate Control)
Symptoms
Common symptoms when B1670 is present:
- Check engine light stays on constantly, indicating a fault in the BCM.
- Interior lights flicker or do not respond to controls, leading to inconvenience.
- Power windows may malfunction or operate erratically, impacting your ability to adjust windows.
- Vehicle security system may fail to arm or disarm correctly, posing a theft risk.
- Dashboard warning lights may illuminate, suggesting other underlying electrical issues.
Possible Causes
Most common causes of B1670 (ordered by frequency):
- The most common cause of B1670 is a faulty Body Control Module (BCM), with an occurrence likelihood of about 70%. This can happen due to age, exposure to moisture, or electrical surges.
- Another possible cause is damaged wiring or connectors related to the BCM, which can lead to communication failures between the BCM and other systems.
- Corrosion at the BCM connectors can also contribute to the code being set. Regular maintenance and cleaning of connectors can help prevent this.
- Less common but serious causes include software issues within the BCM itself, which may require a software update or reprogramming.
- A rare cause could be interference from aftermarket electronic components, potentially affecting the BCM's performance.
B1670 Repair Costs
Cost Breakdown by Repair Type
BCM Replacement
Replacing the faulty Body Control Module with a new unit.
- Total: $300 - $600
- Success rate: 90%
Wiring Repair
Repairing damaged wiring or connectors associated with the BCM.
- Total: $100 - $300
- Success rate: 85%
Software Update
Updating or reprogramming the BCM's software to resolve issues.
- Total: $75 - $150
- Success rate: 80%
Money-Saving Tips for B1670
- 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 B1670 Diagnosis Process
Follow these systematic steps to accurately diagnose B1670. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion, which may take about 5-10 minutes
Step 2: OBD2 scan with GeekOBD APP - Use the app to retrieve all codes and freeze frame data to understand the fault context, typically taking around 10-15 minutes
Step 3: Component testing - Utilize a multimeter or specific diagnostic tools to test the BCM and related components, which may require 20-30 minutes
Step 4: System function test - After repairs, verify the proper operation of the BCM and clear codes, taking about 10-15 minutes
Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success, usually needing 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 Replacement on 2012 Honda Accord
Vehicle: 2012 Honda Accord, 80,000 miles
Problem: Customer reported intermittent power window failures and dashboard warning lights.
Diagnosis: Conducted an OBD2 scan with GeekOBD APP, revealing the B1670 code. Visual inspection showed corrosion at the BCM connectors.
Solution: Replaced the Body Control Module and cleaned all connectors. Updated BCM software.
Cost: $450 (parts: $300 for BCM, $150 for labor)
Result: Post-repair, all systems functioned correctly, and the customer reported no further issues.
Case Study 2: Wiring Repair on 2010 Ford F-150
Vehicle: 2010 Ford F-150, 100,000 miles
Problem: Customer complained of flickering interior lights and security system failures.
Diagnosis: After running diagnostics, found the B1670 code. Inspected wiring to the BCM and found frayed wires.
Solution: Repaired the damaged wiring and secured all connections.
Cost: $200 (parts: $50 for wiring, $150 for labor)
Result: The vehicle's electrical systems returned to normal operation, and the customer was satisfied with the repair.