Quick Answer

U017C means: U017C is a communication error code indicating a fault in the vehicle's data bus system.

Fix: Check and replace faulty components Cost: $100 - $300 Time: 90-180 minutes

Can I drive with U017C? Immediate attention is recommended to avoid further issues.

Common Questions

What does U017C mean and how does it affect my car?

The U017C code indicates a communication problem between your vehicle's control modules. This can affect several systems, leading to performance issues like stalling or erratic behavior. It's important to address this code promptly to ensure your vehicle operates correctly and safely.

What are the most common causes of U017C and how much does it cost to fix?

Common causes include damaged wiring (60% likelihood) and software glitches. Repair costs can range from $100 for wiring repairs to $800 for control module replacements, depending on the issue.

Can I drive my car with U017C or should I stop immediately?

Driving with a U017C code is not advisable as it may lead to malfunctioning safety systems. It's best to have the vehicle inspected immediately to prevent any potential hazards.

How can I diagnose U017C myself using GeekOBD APP?

To diagnose U017C using GeekOBD APP, first, connect the app to your vehicle's OBD-II port. Use the app to read all fault codes and freeze frame data. Analyze the information to identify any patterns or additional codes that may help in pinpointing the issue.

What vehicles are most commonly affected by U017C?

The U017C code is frequently seen in models like the 2015-2018 Ford F-150, but it may also occur in various other makes and models. Always check for any recalls or service bulletins related to your specific vehicle.

How can I prevent U017C from happening again?

To prevent U017C from recurring, regularly inspect wiring and connectors for damage, ensure your vehicle's software is up to date, and maintain proper moisture sealing around electrical components.

What is U017C?

The U017C diagnostic trouble code indicates a communication error between the vehicle's control modules, specifically relating to the 'Data Bus' system. This can happen when the modules are unable to exchange information, which can lead to various malfunctions throughout the vehicle. In simpler terms, your car's computer systems are not talking to each other effectively. This issue can arise from several factors, including damaged wiring, faulty connectors, or even software glitches. When this code is triggered, it typically results in the malfunction of systems that rely on inter-module communication, such as the anti-lock braking system (ABS), traction control, or even the engine control module (ECM). Ignoring this code may lead to performance issues or safety concerns, as critical functions may not operate as designed. It's crucial for vehicle owners, particularly those with models like the 2015-2018 Ford F-150, to address this code promptly to avoid further complications and ensure optimal vehicle performance.

System: U - Network (Communication, CAN Bus)

Symptoms

Common symptoms when U017C is present:

  • Check engine light stays on constantly, indicating a communication error.
  • Issues with vehicle systems like traction control or ABS may activate, leading to reduced safety features.
  • Engine performance may be erratic, including stalling or poor acceleration due to communication loss.
  • Increased fuel consumption, which can be noticeable through a drop in miles per gallon (MPG).
  • In some cases, additional warning lights may appear on the dashboard, indicating multiple system failures.

Possible Causes

Most common causes of U017C (ordered by frequency):

  1. The most common cause of U017C is damaged wiring or connectors, with a likelihood of around 60%. It's essential to check for frayed wires or poor connections, especially in vehicles exposed to harsh conditions.
  2. Another potential cause is a software glitch in one of the control modules, which can happen due to updates or resets gone wrong. Always ensure your vehicle has the latest software updates.
  3. A less common cause could be a failed control module itself, which may require replacement. This is less frequent but can be serious if not addressed.
  4. Intermittent connections due to corrosion or moisture can lead to U017C, particularly in older vehicles or those frequently exposed to water.
  5. Finally, rare instances of factory recalls related to wiring harness issues may also trigger this code, so it's wise to check for any outstanding recalls on your vehicle.

U017C Repair Costs

Cost Breakdown by Repair Type

Wiring Repair

Fixing damaged wiring or connectors can often resolve the U017C code.

  • Total: $100 - $300
  • Success rate: 85%
Control Module Replacement

In cases where the control module is found faulty, replacement may be necessary.

  • Total: $300 - $800
  • Success rate: 90%
Money-Saving Tips for U017C
  • 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 U017C Diagnosis Process

Follow these systematic steps to accurately diagnose U017C. 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 U017C Diagnosis and Repair

Vehicle: 2016 Ford F-150, 75,000 miles

Problem: Customer reported the check engine light was on, and several systems were malfunctioning.

Diagnosis: Initial inspection revealed damaged wiring in the harness connected to the ABS module.

Solution: Repaired the damaged wiring and cleared the codes, resulting in all systems functioning properly.

Cost: $200 for wiring repair

Result: Vehicle passed all diagnostic tests, and the customer reported no further issues.

Case Study 2: Chevrolet Silverado U017C Troubleshooting

Vehicle: 2017 Chevrolet Silverado, 50,000 miles

Problem: Customer noticed the traction control light was on and experienced stalling.

Diagnosis: Diagnostic scanning revealed U017C along with several other codes related to module communication.

Solution: Replaced the faulty control module and updated the software, resolving the issue.

Cost: $600 for control module replacement

Result: Post-repair, the vehicle operated smoothly with no further warning lights.

Diagnose U017C

Use GeekOBD APP for professional diagnosis!

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

Code Information

Code: U017C
System: Network (Communication, CAN Bus)
Severity: HIGH
Category: Network Codes