B0D51 - Understanding DTC B0D51: Common Issues in 2016-2020 Ford Explorer and Other Models

Quick Answer

B0D51 means: B0D51 indicates a malfunction in the body control module or its communication with other modules.

Fix: Check and replace faulty components Cost: $300 - $800 Time: 90-180 minutes

Can I drive with B0D51? Immediate attention is recommended to avoid further electrical issues.

Common Questions

What does B0D51 mean and how does it affect my car?

The B0D51 code indicates an issue with the body control module, which manages various electrical functions in your vehicle. If you see this code, your car may experience problems with power windows, door locks, and interior lighting. It's essential to address this promptly to maintain your vehicle's functionality.

What are the most common causes of B0D51 and how much does it cost to fix?

Common causes of B0D51 include a faulty body control module, loose wiring connections, or blown fuses. Repair costs can vary widely, from $10 for a fuse replacement to $800 for a BCM replacement, depending on the issue.

Can I drive my car with B0D51 or should I stop immediately?

While you might still be able to drive your vehicle, it's not advisable to ignore the B0D51 code. Continuing to operate the vehicle can lead to further electrical issues, potentially compromising safety features.

How can I diagnose B0D51 myself using GeekOBD APP?

To diagnose B0D51 using the GeekOBD APP, connect your smartphone to the vehicle’s OBD2 port, launch the app, and perform a scan. Look for the B0D51 code and any related codes. Pay attention to the freeze frame data for insights into when the code was triggered.

What vehicles are most commonly affected by B0D51?

B0D51 is frequently found in 2016-2020 Ford Explorers and certain models from manufacturers like Dodge and Jeep. Be sure to check for any recalls or technical service bulletins related to this code.

How can I prevent B0D51 from happening again?

Regular vehicle maintenance, including checking electrical connections and keeping the BCM software updated, can help prevent B0D51. Additionally, addressing any electrical issues immediately can reduce the risk of this trouble code reappearing.

What is B0D51?

The B0D51 diagnostic trouble code (DTC) indicates a problem related to the vehicle's body control module (BCM) or an issue with the communication between the BCM and other modules. This code is often triggered when the BCM detects a malfunction in the vehicle's electrical systems, particularly those related to lighting, door locks, or window operations. For car owners, a B0D51 code can lead to various symptoms that impact the overall functionality and comfort of the vehicle. Ignoring this code could potentially lead to more severe electrical issues or complete failure of the affected systems. If you own a 2016-2020 Ford Explorer or similar models, you might experience problems like malfunctioning power windows, inoperative door locks, or inconsistent interior lights. It's crucial to address this code promptly, as it may indicate an underlying electrical fault that could escalate if left unresolved. Understanding the implications of this DTC can help you make informed decisions regarding repairs and maintenance, ensuring your vehicle remains safe and reliable on the road.

System: B - Body (Airbags, Lighting, Security, Climate Control)

Symptoms

Common symptoms when B0D51 is present:

  • The check engine light remains illuminated, indicating an ongoing electrical issue that needs attention.
  • Power windows may operate sporadically, causing frustration and potential safety concerns during driving.
  • Door locks may fail to respond, either locking or unlocking at random, which can compromise vehicle security.
  • Interior lights flicker or fail to turn on, affecting visibility and comfort inside the vehicle.
  • The vehicle may experience erratic behavior in its electrical systems, such as dashboard warning lights appearing unexpectedly.

Possible Causes

Most common causes of B0D51 (ordered by frequency):

  1. The most common cause of B0D51 (approx. 60%) is a faulty body control module that has developed internal errors or failures, often requiring replacement.
  2. Another common cause (about 25%) could be loose or corroded wiring connections, particularly in the BCM harness, which can disrupt communication.
  3. A third cause (around 10%) might be a blown fuse that affects the BCM's operation, which is usually a simple fix through fuse replacement.
  4. Less common (3%) but serious causes include short circuits within the vehicle’s electrical system that can lead to significant repair costs if not addressed.
  5. A rare cause (2%) could be software issues within the BCM that may require a software update or reprogramming to resolve.

B0D51 Repair Costs

Cost Breakdown by Repair Type

BCM Replacement

Replacing the body control module with a new or refurbished unit.

  • Total: $300 - $800
  • Success rate: 85%
Wiring Repair

Repairing or replacing damaged wiring connections around the BCM.

  • Total: $100 - $300
  • Success rate: 90%
Fuse Replacement

Replacing a blown fuse that impacts BCM operation.

  • Total: $10 - $50
  • Success rate: 95%
Money-Saving Tips for B0D51
  • 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 B0D51 Diagnosis Process

Follow these systematic steps to accurately diagnose B0D51. 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 corrosion around the BCM (5-10 minutes)

Step 1: Perform an initial visual inspection to check for damaged wiring, loose connections, or corrosion around the BCM (5-10 minutes).

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: Use an OBD2 scan tool, like the GeekOBD APP, to retrieve the B0D51 code and any related codes to understand the fault context (10-15 minutes)

Step 2: Use an OBD2 scan tool, like the GeekOBD APP, to retrieve the B0D51 code and any related codes to understand the fault context (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 3: Step 3: Conduct component testing using a multimeter to check the BCM and related components for proper voltage and continuity (20-30 minutes)

Step 3: Conduct component testing using a multimeter to check the BCM and related components for proper voltage and continuity (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: After performing any repairs, conduct a system function test to verify the proper operation of the BCM and clear the codes (10-15 minutes)

Step 4: After performing any repairs, conduct a system function test to verify the proper operation of the BCM and clear the codes (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: Perform a road test to ensure the vehicle operates normally under various conditions and that the repair was successful (15-20 minutes)

Step 5: Perform a road test to ensure the vehicle operates normally under various conditions and that the repair was successful (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: BCM Replacement in a 2018 Ford Explorer

Vehicle: 2018 Ford Explorer with 45,000 miles

Problem: The customer reported that the power windows and door locks were non-functional.

Diagnosis: Upon scanning the vehicle, the B0D51 code was present along with other electrical system codes. A visual inspection revealed corrosion in the wiring harness.

Solution: The body control module was replaced along with the damaged wiring harness.

Cost: $750 (BCM: $600, Wiring: $150)

Result: After the repair, all systems operated normally, and the customer reported no further issues.

Case Study 2: Wiring Repair in a 2019 Jeep Grand Cherokee

Vehicle: 2019 Jeep Grand Cherokee with 30,000 miles

Problem: The interior lights flickered intermittently, and the vehicle would not unlock remotely.

Diagnosis: A diagnostic scan showed the B0D51 code. Further inspection revealed loose connections in the BCM wiring.

Solution: The loose connections were repaired and secured properly.

Cost: $150 (Labor and materials)

Result: Post-repair, the interior lights and remote locking functioned correctly, resolving the customer's concerns.

Diagnose B0D51

Use GeekOBD APP for professional diagnosis!

  • Real-time data monitoring
  • Advanced diagnostic features
  • Step-by-step repair guidance
  • Professional-grade analysis
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Code Information

Code: B0D51
System: Body (Airbags, Lighting, Security, Climate Control)
Severity: HIGH
Category: Body Codes