B201C - Understanding B201C Code in 2015-2018 Honda Accord and Other Models

Quick Answer

B201C means: B201C code indicates a communication issue between the body control module and the power steering control module.

Fix: Check and replace faulty components Cost: $500 - $800 Time: 90-180 minutes

Can I drive with B201C? Seek immediate professional diagnosis to prevent safety issues.

Common Questions

What does B201C mean and how does it affect my car?

The B201C code indicates a communication issue between the body control module and the power steering control module in your vehicle. This can lead to difficulties in steering, electrical component failures, and safety risks while driving. If not addressed, the problem may worsen, potentially leading to a complete failure of the power steering system.

What are the most common causes of B201C and how much does it cost to fix?

Common causes of B201C include a faulty body control module, poor electrical connections, or a malfunctioning power steering control module. Repair costs can range from $100 for wiring repairs to $800 for BCM replacement, depending on the specific issue and the vehicle model.

Can I drive my car with B201C or should I stop immediately?

It's recommended to stop driving your vehicle if the B201C code is present, especially if you're experiencing heavy steering or loss of power steering assist. Continuing to drive could lead to dangerous situations or further damage to the vehicle.

How can I diagnose B201C myself using GeekOBD APP?

To diagnose B201C using the GeekOBD APP, connect the app to your vehicle's OBD2 port. Run a full scan to retrieve DTCs and freeze frame data. Take note of any additional codes that may provide context to the B201C issue and assess the conditions under which they occurred.

What vehicles are most commonly affected by B201C?

The B201C code is commonly seen in 2015-2018 Honda Accord models, but it may also appear in other Honda vehicles of similar years and in some Acura models. Always check for any recalls or technical service bulletins (TSBs) related to your specific vehicle.

How can I prevent B201C from happening again?

To prevent B201C from reoccurring, ensure regular inspections of your vehicle's electrical systems, maintain clean and secure connections, and keep the software of your vehicle updated. Promptly address any signs of electrical issues to avoid escalation.

What is B201C?

The B201C diagnostic trouble code (DTC) is primarily associated with issues in the vehicle's body control module (BCM) or the power steering control module (PSCM) in vehicles like the 2015-2018 Honda Accord. This code indicates that the BCM has detected an abnormality in communication with the PSCM, which can lead to various electrical issues affecting your vehicle's functionality. When the B201C code is triggered, you may experience symptoms such as failure of power steering assist, dashboard warning lights, and other electronic malfunctions. Understanding this code is crucial because it can affect your driving experience and safety. Ignoring this code may lead to more severe issues, including complete power steering failure, which can make your vehicle challenging to handle. Immediate diagnostics and repairs are recommended to ensure your vehicle operates correctly and safely. For car owners, it's vital to recognize that resolving the B201C code not only enhances vehicle performance but also prevents potential safety hazards.

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

Symptoms

Common symptoms when B201C is present:

  • The check engine light illuminates and stays on, indicating a persistent issue that needs attention.
  • You may notice that the power steering feels heavier than usual, making it difficult to maneuver the vehicle, especially at low speeds.
  • There might be intermittent failures of electronic components like windows, locks, or lights, suggesting broader electrical problems.
  • The dashboard may display multiple warning lights, including the power steering warning light, indicating a malfunction.
  • In severe cases, you may experience sudden loss of power steering assist, which can lead to dangerous driving conditions.

Possible Causes

Most common causes of B201C (ordered by frequency):

  1. The most common cause of the B201C code is a faulty body control module (BCM), which is responsible for managing various electronic systems in the vehicle. This issue typically occurs in about 60% of cases.
  2. A poor electrical connection or damaged wiring between the BCM and PSCM can lead to communication errors. This might be due to corrosion or wear and accounts for approximately 20% of cases.
  3. A malfunctioning power steering control module (PSCM) can also trigger this code. Ensuring the PSCM is functioning correctly can prevent this issue, and regular inspections can help identify early signs.
  4. Less commonly, software glitches in the vehicle's electronic systems can cause the B201C code to appear. Keeping your vehicle's software updated can minimize this risk.
  5. In rare cases, physical damage to the BCM or PSCM from an accident or excessive environmental exposure could lead to this code.

B201C Repair Costs

Cost Breakdown by Repair Type

BCM Replacement

Replacing the faulty body control module can resolve the B201C code issues.

  • Total: $500 - $800
  • Success rate: 85%
Wiring Repair

Repairing or replacing damaged wiring between the BCM and PSCM.

  • Total: $100 - $300
  • Success rate: 75%
PSCM Replacement

Replacing the power steering control module if found faulty.

  • Total: $400 - $700
  • Success rate: 80%
Money-Saving Tips for B201C
  • 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 B201C Diagnosis Process

Follow these systematic steps to accurately diagnose B201C. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Perform a visual inspection of the vehicle's wiring and connections related to the BCM and PSCM

Step 1: Perform a visual inspection of the vehicle's wiring and connections related to the BCM and PSCM. Look for signs of wear, corrosion, or loose connections (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 the GeekOBD APP to perform an OBD2 scan

Step 2: Use the GeekOBD APP to perform an OBD2 scan. Retrieve all stored codes and freeze frame data to gather context about the fault (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 with a multimeter to check the voltage and ground signals at the BCM and PSCM

Step 3: Conduct component testing with a multimeter to check the voltage and ground signals at the BCM and PSCM. This will help identify if the modules are receiving adequate power (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 any repairs, conduct a system function test to verify that the BCM and PSCM are communicating properly and that the code is cleared (10-15 minutes)

Step 4: After any repairs, conduct a system function test to verify that the BCM and PSCM are communicating properly and that the code is cleared (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 correctly under various conditions, confirming that the issue has been resolved (15-20 minutes)

Step 5: Perform a road test to ensure the vehicle operates correctly under various conditions, confirming that the issue has been resolved (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 2017 Honda Accord

Vehicle: 2017 Honda Accord, 45,000 miles

Problem: The customer reported a persistent check engine light and difficulty steering.

Diagnosis: After scanning with GeekOBD APP, the B201C code was confirmed. The BCM was tested and found faulty.

Solution: The BCM was replaced with a new unit, and connections were secured.

Cost: $650 (BCM: $500, Labor: $150)

Result: The issue was resolved, and the check engine light cleared; the customer reported improved steering response.

Case Study 2: Wiring Repair in a 2016 Honda Civic

Vehicle: 2016 Honda Civic, 30,000 miles

Problem: The vehicle experienced intermittent power steering failures.

Diagnosis: The GeekOBD APP revealed the B201C code. A visual inspection showed damaged wiring near the BCM.

Solution: The damaged wiring was repaired, and all connections were cleaned.

Cost: $200 (Labor: $100, Parts: $100)

Result: After repairs, the power steering function was restored, and no further codes appeared.

Diagnose B201C

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: B201C
System: Body (Airbags, Lighting, Security, Climate Control)
Severity: HIGH
Category: Body Codes