B056E - Understanding the Brake Switch Circuit Performance Issue in Common Vehicles

Quick Answer

B056E means: B056E indicates a fault in the brake switch circuit, affecting brake light operation and gear shifting.

Fix: Check and replace faulty components Cost: $50 - $150 Time: 90-180 minutes

Can I drive with B056E? Immediate attention is recommended to prevent safety issues.

Common Questions

What does B056E mean and how does it affect my car?

B056E refers to a fault in the brake switch circuit, leading to potential issues with brake lights and shifting out of park. If this code appears, it indicates that your brake switch is not functioning properly, affecting your vehicle's safety systems.

What are the most common causes of B056E and how much does it cost to fix?

The most common cause is a faulty brake switch, which can be replaced for $50 - $150. Other causes include wiring issues and control module failures, which can significantly increase repair costs.

Can I drive my car with B056E or should I stop immediately?

It is advisable not to drive your vehicle if the B056E code is present. The issues with the brake switch can lead to brake lights not functioning, which poses a safety risk.

How can I diagnose B056E myself using GeekOBD APP?

Using the GeekOBD APP, you can scan for trouble codes, view live data from the brake switch, and check the freeze frame data to see when the code was generated. This can help you pinpoint the issue more accurately.

What vehicles are most commonly affected by B056E?

DTC B056E is common in vehicles like the 2013-2018 Ford Fusion, 2015-2019 Chevrolet Colorado, and 2016-2019 Toyota Tacoma. Always check for any recalls or technical service bulletins related to these models.

How can I prevent B056E from happening again?

Regularly inspect your vehicle's brake system and wiring for wear and tear. Ensure that all connections are clean and secure, and replace any worn components promptly to prevent future issues.

What is B056E?

The diagnostic trouble code (DTC) B056E indicates a problem with the brake switch circuit, typically related to the performance of the brake switch itself or the circuit that connects it to the vehicle's control module. This code is often seen in various vehicles including the 2013-2018 Ford Fusion, 2015-2019 Chevrolet Colorado, and 2016-2019 Toyota Tacoma. When the brake switch fails or the circuit experiences issues, it can affect the vehicle's ability to properly communicate when the brake pedal is engaged. This can lead to problems such as the vehicle's inability to shift out of park or activate the brake lights, creating potential safety hazards. Drivers may notice that their brake lights remain illuminated even when the pedal is not pressed, or they may experience difficulties starting the vehicle due to an electronic interlock system designed to prevent engagement of the transmission. Additionally, this code could also affect other systems that rely on the brake switch, including cruise control and stability control systems. A malfunctioning brake switch circuit can cause inconvenience and potentially lead to more severe electrical issues if not addressed promptly.

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

Symptoms

Common symptoms when B056E is present:

  • The brake lights remain on even when the brake pedal is not pressed, which can drain the battery over time.
  • You may find it difficult to shift the vehicle out of park, as the brake interlock system is not functioning correctly.
  • Cruise control may not engage or may turn off unexpectedly due to incorrect signals from the brake switch.
  • Inconsistent warning lights on the dashboard may appear, indicating potential issues with other systems reliant on brake switch signals.
  • In some cases, the vehicle may fail to start, as the brake switch is often tied to the ignition system.

Possible Causes

Most common causes of B056E (ordered by frequency):

  1. The most common cause is a faulty brake switch, which has a high likelihood of around 70%. Over time, switches can wear out due to constant use.
  2. Wiring issues, such as corroded connectors or damaged harnesses, can account for about 15% of the cases, leading to intermittent signals.
  3. A blown fuse related to the brake light circuit or brake switch can also cause this code, though this is less common.
  4. In rare cases, the vehicle's control module may have faults, which could lead to incorrect diagnostics and a reading of B056E.
  5. An electrical short within the circuit can occur, causing unexpected behavior. This is considered rare but can cause significant issues.

B056E Repair Costs

Cost Breakdown by Repair Type

Brake Switch Replacement

Replacing the faulty brake switch is the most direct solution to resolving the B056E code.

  • Total: $50 - $150
  • Success rate: 90%
Wiring Repair or Replacement

If wiring issues are identified, repairing or replacing damaged wiring can resolve the problem.

  • Total: $100 - $300
  • Success rate: 80%
Control Module Replacement

In rare cases, replacing the control module may be necessary if it is found to be faulty.

  • Total: $500 - $1200
  • Success rate: 70%
Money-Saving Tips for B056E
  • 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 B056E Diagnosis Process

Follow these systematic steps to accurately diagnose B056E. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Initial visual inspection - Check the brake switch and wiring for visible damage, ensuring connectors are secure and free of corrosion (5-10 minutes)

Step 1: Initial visual inspection - Check the brake switch and wiring for visible damage, ensuring connectors are secure and free of corrosion (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: OBD2 scan with GeekOBD APP - Retrieve all trouble codes and freeze frame data to better understand the fault context and related issues (10-15 minutes)

Step 2: OBD2 scan with GeekOBD APP - Retrieve all trouble codes and freeze frame data to better understand the fault context and related issues (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: Component testing - Use a multimeter to test the brake switch operation and verify that it is sending the correct signals when the pedal is depressed (20-30 minutes)

Step 3: Component testing - Use a multimeter to test the brake switch operation and verify that it is sending the correct signals when the pedal is depressed (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: System function test - After any repairs, verify that the brake light operates correctly and that no codes remain (10-15 minutes)

Step 4: System function test - After any repairs, verify that the brake light operates correctly and that no codes remain (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: Road test verification - Drive the vehicle under different conditions to ensure proper operation of the brake switch and related systems (15-20 minutes)

Step 5: Road test verification - Drive the vehicle under different conditions to ensure proper operation of the brake switch and related systems (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: Brake Switch Replacement on a 2016 Ford Fusion

Vehicle: 2016 Ford Fusion, 75,000 miles

Problem: Customer reported brake lights staying on constantly and difficulty shifting out of park.

Diagnosis: After scanning with GeekOBD APP, B056E was confirmed. A visual inspection revealed a faulty brake switch.

Solution: Replaced the brake switch and cleared the codes. Verified that the brake lights functioned properly.

Cost: $120 (including parts and labor)

Result: Customer reported no further issues after the repair.

Case Study 2: Wiring Repair on a 2018 Chevrolet Colorado

Vehicle: 2018 Chevrolet Colorado, 50,000 miles

Problem: Driver experienced intermittent brake light failures and gear shifting issues.

Diagnosis: OBD2 scan confirmed B056E. Wiring inspection showed corrosion at the connector.

Solution: Cleaned and repaired the corroded wiring and replaced the connector.

Cost: $180 (including parts and labor)

Result: Issue resolved, and the vehicle operated normally thereafter.

Diagnose B056E

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: B056E
System: Body (Airbags, Lighting, Security, Climate Control)
Severity: HIGH
Category: Body Codes