U0C6C - Understanding the Communication Error in 2017-2020 Ford Explorer and Other Models

Quick Answer

U0C6C means: DTC U0C6C signifies a communication error between the Body Control Module and other electronic modules.

Fix: Check and replace faulty components Cost: $400 - $800 Time: 90-180 minutes

Can I drive with U0C6C? Immediate attention is recommended to avoid further system failures.

Common Questions

What does U0C6C mean and how does it affect my car?

The U0C6C code indicates a communication failure between the Body Control Module and other electronic control units in your vehicle. This can lead to various issues, such as malfunctioning interior lights, issues with power windows, or problems with the engine starting. If left unresolved, it could lead to more serious electrical failures.

What are the most common causes of U0C6C and how much does it cost to fix?

Common causes of U0C6C include a faulty Body Control Module (BCM), damaged wiring, or poor connections. Repair costs can range from $100 for wiring repairs to $800 for BCM replacement, depending on the extent of the issue and parts required.

Can I drive my car with U0C6C or should I stop immediately?

While you may be able to drive your vehicle with the U0C6C code, it is advisable to address the issue promptly. Ignoring it could lead to further complications, including the failure of critical safety systems. If you notice any significant symptoms, such as starting issues or malfunctioning lights, it’s best to stop driving and seek professional help.

How can I diagnose U0C6C myself using GeekOBD APP?

To diagnose U0C6C with the GeekOBD APP, start by connecting the app to your vehicle's OBD2 port. Use the app to scan for stored codes and retrieve freeze frame data that provides context about when the fault occurred. Follow up by checking the specific components related to communication, such as the BCM and wiring.

What vehicles are most commonly affected by U0C6C?

The U0C6C code is commonly found in vehicles like the 2017-2020 Ford Explorer and other Ford models equipped with similar electronic systems. It’s advisable to check for any manufacturer recalls or technical service bulletins (TSBs) related to communication issues.

How can I prevent U0C6C from happening again?

Regular maintenance is key to preventing U0C6C. This includes routine inspections of the vehicle’s wiring and connectors, ensuring that software updates are applied to the BCM and other modules, and avoiding exposure to moisture or extreme conditions that could damage electrical components.

What is U0C6C?

The diagnostic trouble code (DTC) U0C6C indicates a communication error within the vehicle's network, specifically relating to the Body Control Module (BCM) and other electronic control units (ECUs). This code often arises in modern vehicles, particularly in models like the 2017-2020 Ford Explorer, where multiple electronic systems rely on seamless communication for optimal performance. When U0C6C is triggered, it signifies that the BCM is having difficulty communicating with other modules, leading to potential vehicle malfunctions. This could manifest in various ways, from minor inconveniences like malfunctioning interior lights to more serious issues such as failure of critical safety systems. In essence, this code highlights a breakdown in the intricate electronic web that modern vehicles depend on, which can lead to a cascade of problems if left unaddressed. Understanding this code is crucial for timely repairs, as ignoring it could result in more significant issues down the line, including safety risks and costly repairs.

System: U - Network (Communication, CAN Bus)

Symptoms

Common symptoms when U0C6C is present:

  • The check engine light illuminates and remains lit, indicating a persistent communication issue.
  • Interior lighting may malfunction, with lights flickering or failing to operate properly during vehicle operation.
  • Drivers may experience intermittent issues with electronic features, such as power windows or central locking, failing to respond consistently.
  • The vehicle may exhibit erratic behavior related to the climate control system, with temperature settings not functioning as intended.
  • In some cases, the vehicle may not start, indicating a critical failure in communication among key electronic systems.

Possible Causes

Most common causes of U0C6C (ordered by frequency):

  1. The most common cause is a faulty Body Control Module, accounting for approximately 40% of cases; this may be due to internal component failure or software issues.
  2. A second common cause is damaged wiring or poor connections within the vehicle's network, particularly in areas prone to wear and tear, such as under the dashboard.
  3. Corrosion at electrical connectors can also lead to communication failures; regular inspections can help prevent this issue.
  4. Less commonly, a software glitch in one of the related modules can result in U0C6C; ensuring all modules are updated can mitigate this risk.
  5. In rare cases, it may stem from a malfunctioning power supply, affecting the BCM and other reliant systems.

U0C6C Repair Costs

Cost Breakdown by Repair Type

BCM Replacement

Replacing the faulty Body Control Module to restore proper communication.

  • Total: $400 - $800
  • Success rate: 90%
Wiring Repair

Repairing or replacing damaged wiring and connectors in the vehicle’s network.

  • Total: $100 - $300
  • Success rate: 80%
Money-Saving Tips for U0C6C
  • 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 U0C6C Diagnosis Process

Follow these systematic steps to accurately diagnose U0C6C. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes)

Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or 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 codes and freeze frame data to understand the fault context (10-15 minutes)

Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data 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: Component testing - Use a multimeter or specific diagnostic tools to test suspected components such as the BCM (20-30 minutes)

Step 3: Component testing - Use a multimeter or specific diagnostic tools to test suspected components such as the BCM (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 - Verify proper operation after repairs and clear codes to ensure they do not return (10-15 minutes)

Step 4: System function test - Verify proper operation after repairs and clear codes to ensure they do not return (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 various conditions to confirm repair success and monitor for any returning symptoms (15-20 minutes)

Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success and monitor for any returning symptoms (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 on 2018 Ford Explorer

Vehicle: 2018 Ford Explorer, 45,000 miles

Problem: Customer reported intermittent failures with interior lighting and power windows not responding.

Diagnosis: After using the GeekOBD APP, U0C6C was diagnosed, leading to further investigation of the Body Control Module.

Solution: Replaced the faulty BCM, which resolved all communication issues.

Cost: $650 (including parts and labor)

Result: Post-repair, all electronic features functioned correctly, and no codes returned after a 100-mile road test.

Case Study 2: Wiring Repair on 2019 Ford F-150

Vehicle: 2019 Ford F-150, 30,000 miles

Problem: Driver experienced flickering dashboard lights and occasional starting issues.

Diagnosis: The GeekOBD APP indicated U0C6C, prompting a thorough inspection of the wiring harness.

Solution: Repaired the damaged wiring under the dashboard, ensuring secure connections.

Cost: $250 (for parts and labor)

Result: The vehicle was restored to full functionality, with no further issues reported.

Diagnose U0C6C

Use GeekOBD APP for professional diagnosis!

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  • Advanced diagnostic features
  • Step-by-step repair guidance
  • Professional-grade analysis
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Code Information

Code: U0C6C
System: Network (Communication, CAN Bus)
Severity: HIGH
Category: Network Codes