C06C6 - Understanding the Code for 2015-2018 Ford F-150 and Other Models

Quick Answer

C06C6 means: C06C6 indicates a communication failure between control modules in your vehicle, often affecting engine performance.

Fix: Check and replace faulty components Cost: $150 - $600 Time: 90-180 minutes

Can I drive with C06C6? It is advisable to address this issue as soon as possible to prevent further damage to your vehicle.

Common Questions

What does C06C6 mean and how does it affect my car?

The C06C6 code signifies a communication failure between your vehicle's control modules, which can lead to various performance issues, including engine hesitation and reduced fuel efficiency. This code can impact how smoothly your vehicle operates, and if left unresolved, it could lead to more significant problems.

What are the most common causes of C06C6 and how much does it cost to fix?

Common causes include damaged wiring (40% likelihood), faulty control modules, and poor connections. Repair costs can vary, with wiring harness replacements ranging from $150 to $600 and control module replacements from $300 to $1,200, depending on the vehicle make and model.

Can I drive my car with C06C6 or should I stop immediately?

It's advisable to address the C06C6 code as soon as possible. Driving with this code may lead to erratic vehicle performance and potential safety issues. If you notice significant symptoms, such as loss of power or rough shifting, it’s best to stop driving and seek professional assistance.

How can I diagnose C06C6 myself using GeekOBD APP?

Using the GeekOBD APP, connect it to your vehicle's OBD2 port. Perform a full system scan to retrieve the C06C6 code and any other related codes. Examine the freeze frame data for context, and use the APP’s diagnostic features to run specific tests on the suspected modules.

What vehicles are most commonly affected by C06C6?

The C06C6 code is often seen in vehicles such as the 2015-2018 Ford F-150, Ford Explorer, and other models within the Ford range that utilize complex electronic systems. Specific recalls or Technical Service Bulletins (TSBs) may also apply to affected vehicles, so checking with a local dealer can provide more info.

How can I prevent C06C6 from happening again?

Regular maintenance is key to preventing C06C6. Schedule routine inspections of your vehicle’s wiring and connections, especially if you have added aftermarket electronics. Additionally, keeping your vehicle's battery and alternator in good condition can help ensure stable communications between control modules.

What is C06C6?

The C06C6 diagnostic trouble code (DTC) indicates a communication issue within the vehicle's network, specifically related to the control modules that govern various systems. This code is prevalent in several models, including the 2015-2018 Ford F-150 and other vehicles equipped with advanced electronic features. When the C06C6 code is triggered, it means that the Engine Control Module (ECM) is unable to communicate with one or more of the other control modules effectively. This can lead to various operational issues, including erratic performance, failure of auxiliary systems, or even the engine not starting. In practical terms, if you're seeing a check engine light along with this code, it could signify that critical components such as the transmission control module or the anti-lock braking system are not functioning correctly. Ignoring this code could result in further complications down the road, including more extensive and costly repairs. Therefore, it's crucial to address the C06C6 code promptly to ensure your vehicle operates optimally.

System: C - Chassis (ABS, Steering, Suspension)

Symptoms

Common symptoms when C06C6 is present:

  • Check engine light stays on constantly, indicating an underlying issue that needs attention.
  • Engine hesitates during acceleration, which can lead to unsafe driving conditions and reduced vehicle performance.
  • Fuel economy decreased by 10-15%, signaling that the engine may not be operating as efficiently as it should.
  • Transmission shifts may feel rough or erratic, indicating that communication between the transmission control module and the ECM is compromised.
  • Inconsistent operation of electrical components, such as headlights or dashboard indicators, suggesting a systemic communication failure.

Possible Causes

Most common causes of C06C6 (ordered by frequency):

  1. The most common cause of C06C6 is a faulty or damaged wiring harness associated with the communication network, with a likelihood of around 40%. This can occur due to wear and tear or environmental factors.
  2. A second possible cause is a malfunctioning control module, which may not be sending or receiving signals properly. This issue can arise due to software glitches or physical damage.
  3. Thirdly, poor connections or corroded terminals in the wiring can prevent reliable communication, so regular inspections can help prevent this issue.
  4. A less common but serious cause could be a failing battery or alternator, which can cause voltage inconsistencies affecting module communication.
  5. Finally, rare but possible causes include external interference from aftermarket electronics, which may disrupt the vehicle's communication systems.

C06C6 Repair Costs

Cost Breakdown by Repair Type

Wiring Harness Replacement

Replacing damaged wiring harnesses can resolve communication failures.

  • Total: $150 - $600
  • Success rate: 85%
Control Module Replacement

In cases where a control module is determined to be faulty, replacing it is necessary.

  • Total: $300 - $1,200
  • Success rate: 90%
Money-Saving Tips for C06C6
  • 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 C06C6 Diagnosis Process

Follow these systematic steps to accurately diagnose C06C6. 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 (20-30 minutes)

Step 3: Component testing - Use a multimeter or specific diagnostic tools to test suspected components (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 (10-15 minutes)

Step 4: System function test - Verify proper operation after repairs and clear 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: Road test verification - Drive vehicle under various conditions to confirm repair success (15-20 minutes)

Step 5: Road test verification - Drive vehicle under various conditions to confirm repair success (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: Ford F-150 C06C6 Repair Case Study

Vehicle: 2017 Ford F-150, 55,000 miles

Problem: Customer reported engine hesitation and a persistent check engine light.

Diagnosis: After scanning with the GeekOBD APP, the C06C6 code was retrieved alongside other minor codes. A visual inspection revealed a frayed wiring harness.

Solution: Replaced the damaged wiring harness and cleared the codes. Post-repair tests showed normal communication between modules.

Cost: $350 (wiring harness $200, labor $150)

Result: Customer reported improved engine performance and no further check engine light issues.

Case Study 2: Exploring a C06C6 in a 2018 Ford Explorer

Vehicle: 2018 Ford Explorer, 40,000 miles

Problem: Driver experienced erratic transmission shifts and a check engine light.

Diagnosis: Using GeekOBD, the C06C6 code was identified. Further testing indicated a faulty transmission control module.

Solution: Replaced the transmission control module and reprogrammed it to interface with the vehicle's systems.

Cost: $900 (control module $700, labor $200)

Result: Post-repair tests confirmed proper function, and the customer reported smooth shifting and no further issues.

Diagnose C06C6

Use GeekOBD APP for professional diagnosis!

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  • Professional-grade analysis
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Code Information

Code: C06C6
System: Chassis (ABS, Steering, Suspension)
Severity: HIGH
Category: Chassis Codes