Quick Answer
B0C70 means: B0C70 indicates a malfunction in the body control module (BCM) or related systems.
Can I drive with B0C70? Immediate inspection and diagnosis are advised to prevent escalating issues.
Common Questions
What does B0C70 mean and how does it affect my car?
B0C70 indicates a malfunction in your vehicle's body control module. This can lead to issues with electronic components like power windows and door locks. Over time, ignoring this code can result in further electrical failures and safety concerns.
What are the most common causes of B0C70 and how much does it cost to fix?
Common causes include a faulty body control module, damaged wiring, and corroded connectors. Repair costs can range from $50 for cleaning connectors to $1,200 for BCM replacement.
Can I drive my car with B0C70 or should I stop immediately?
While you may be able to drive your car, it's advisable to address the B0C70 code urgently to avoid further complications, such as failing electronic systems and potential safety issues.
How can I diagnose B0C70 myself using GeekOBD APP?
Download the GeekOBD APP and connect it to your vehicle’s OBD2 port. Perform a scan to retrieve the B0C70 code and any related codes. Analyze freeze-frame data to understand when the issue occurs.
What vehicles are most commonly affected by B0C70?
This code is frequently seen in 2016-2020 Ford Explorers and other Ford models. Owners of these vehicles should be vigilant for symptoms related to the BCM.
How can I prevent B0C70 from happening again?
Regular maintenance of electrical connections, ensuring proper sealing from moisture, and timely addressing of any warning lights can help prevent B0C70 from recurring.
What is B0C70?
The diagnostic trouble code (DTC) B0C70 indicates a problem with the vehicle's body control module (BCM) or a related system. This code typically arises when the BCM detects an issue within the network it manages, which could include problems with the door locks, windows, lights, or other electronic features. The BCM is crucial for ensuring that various electronic components communicate effectively. When B0C70 is triggered, it may lead to malfunctions in features such as power windows, door locks, or even the vehicle's lighting system. Real-world implications include reduced functionality of these features, which can be frustrating for drivers and may affect overall vehicle safety and security. Some common symptoms include the inability to use power door locks or windows, erratic behavior of lights, and the vehicle’s security system acting unpredictably. If not addressed, the issues could worsen over time, leading to more significant electrical problems or even complete failure of the BCM, necessitating costly repairs. Immediate diagnosis and repair are recommended to restore normal vehicle functionality and prevent further complications.
System: B - Body (Airbags, Lighting, Security, Climate Control)
Symptoms
Common symptoms when B0C70 is present:
- The check engine light stays on constantly, indicating a persistent problem with the BCM.
- Power windows fail to operate, leaving passengers unable to adjust their windows.
- Door locks become inoperative, either failing to lock or unlock with the remote or manually.
- Interior lights flicker or fail to turn on/off properly, affecting visibility inside the vehicle.
- The vehicle's security system activates unexpectedly, causing alarm sounds without cause.
Possible Causes
Most common causes of B0C70 (ordered by frequency):
- The most common cause of B0C70 is a faulty body control module, which has about a 60% likelihood of being the issue. This may stem from manufacturing defects or wear over time.
- A second common cause is damaged wiring within the BCM circuit, often resulting from wear and tear or exposure to moisture, leading to a 25% likelihood. Inspecting and repairing wiring can resolve the issue.
- Corroded connectors can also trigger this code, with a 10% likelihood. Regular maintenance, including cleaning electrical connections, can help prevent this.
- Less commonly, a short circuit in the BCM circuit can occur, which can be serious and may require replacement. This has a 4% likelihood.
- A rare cause might be software glitches within the BCM, which can sometimes be fixed with an update but may also require replacement, representing around 1% of cases.
B0C70 Repair Costs
Cost Breakdown by Repair Type
BCM Replacement
Replacement of the body control module, typically necessary if the module is found to be defective.
- Total: $500 - $1,200
- Success rate: 95%
Wiring Repair
Repairing damaged wiring that may be causing the issue, often a simpler fix.
- Total: $100 - $300
- Success rate: 85%
Connector Cleaning
Cleaning corroded connectors to ensure proper electrical contact.
- Total: $50 - $150
- Success rate: 75%
Money-Saving Tips for B0C70
- 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 B0C70 Diagnosis Process
Follow these systematic steps to accurately diagnose B0C70. 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 (5-10 minutes)
Step 1: Conduct an initial visual inspection to check for obvious signs like damaged wiring, loose connections, or corrosion (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. Retrieve all codes and freeze-frame data to understand the fault context (10-15 minutes).
Step 3: Step 3: Perform component testing with a multimeter or specific diagnostic tools to test suspected components, focusing on the BCM and its connections (20-30 minutes)
Step 3: Perform component testing with a multimeter or specific diagnostic tools to test suspected components, focusing on the BCM and its connections (20-30 minutes).
Step 4: Step 4: Conduct a system function test to verify proper operation after repairs and clear codes to see if the issue returns (10-15 minutes)
Step 4: Conduct a system function test to verify proper operation after repairs and clear codes to see if the issue returns (10-15 minutes).
Step 5: Step 5: Finally, carry out a road test under various conditions to confirm repair success and ensure that all systems operate correctly (15-20 minutes)
Step 5: Finally, carry out a road test under various conditions to confirm repair success and ensure that all systems operate correctly (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: 2017 Ford Explorer BCM Replacement
Vehicle: 2017 Ford Explorer, 75,000 miles
Problem: Customer reported failure of power windows and erratic door lock operation.
Diagnosis: Used GeekOBD APP to scan for codes, confirming B0C70. Inspected BCM and found it faulty.
Solution: Replaced the body control module and reprogrammed it to the vehicle.
Cost: $950 (parts: $800, labor: $150)
Result: All electronic features restored to normal functionality; customer reported satisfaction.
Case Study 2: 2018 Ford Edge Wiring Repair
Vehicle: 2018 Ford Edge, 60,000 miles
Problem: Customer experienced intermittent issues with door locks and lighting.
Diagnosis: B0C70 was present; visual inspection revealed damaged wiring harness.
Solution: Repaired damaged wires and cleaned connectors.
Cost: $200 (parts: $50, labor: $150)
Result: Resolved issues; customer noted improved reliability of electronic systems.