U0190 - Understanding DTC U0190: Communication Problems in Ford, Honda, and More

Quick Answer

U0190 means: U0190 indicates a communication failure between control modules in your vehicle.

Fix: Check and replace faulty components Cost: $150 - $300 Time: 90-180 minutes

Can I drive with U0190? Immediate attention is recommended to prevent further issues.

Common Questions

What does U0190 mean and how does it affect my car?

DTC U0190 signifies a communication failure between your vehicle's control modules, which can lead to various operational issues. It can prevent critical systems from functioning, potentially impacting vehicle performance, safety, and drivability.

What are the most common causes of U0190 and how much does it cost to fix?

The typical causes of U0190 include damaged wiring (60% of cases), failed control modules, and corrosion at connection points. Repair costs can range from $150 for wiring repairs to over $1,200 for module replacements.

Can I drive my car with U0190 or should I stop immediately?

It's not advisable to continue driving with U0190 as it can lead to serious safety issues. If you experience any symptoms, such as warning lights or performance drops, it's best to get the vehicle diagnosed and repaired as soon as possible.

How can I diagnose U0190 myself using GeekOBD APP?

Using the GeekOBD APP, you can perform a detailed scan of your vehicle to retrieve the U0190 code. Pay attention to additional codes that may provide context, and check live data to identify any discrepancies in module communication.

What vehicles are most commonly affected by U0190?

U0190 is often found in 2015-2020 Ford Focus, Honda Civic, and Toyota Camry models. It's important to check for any recalls or Technical Service Bulletins (TSBs) related to these models for additional insights.

How can I prevent U0190 from happening again?

To prevent U0190 from recurring, regularly inspect wiring and connectors for wear, perform routine maintenance, and keep software updated. Additionally, addressing any signs of water intrusion immediately can help protect sensitive electronic components.

What is U0190?

DTC U0190 indicates a communication issue between the vehicle's control modules, often signaling that a module is not responding or is unable to communicate with the Engine Control Module (ECM) or other vital systems. This code is particularly common in vehicles from manufacturers like Ford, Honda, and Toyota, especially models produced between 2015 and 2020. When this code appears, it can lead to several operational issues, such as the inability to start the engine, malfunctioning gauges, or failure of critical safety features. The ‘U’ in the code signifies that it is a network communication issue, which usually stems from problems with the wiring, connectors, or the modules themselves. Ignoring this code can lead to further complications, including reduced vehicle performance and increased repair costs down the line. It’s essential for vehicle owners to understand the implications of U0190 as it can affect various systems in the car, making timely diagnosis and repair crucial.

System: U - Network (Communication, CAN Bus)

Symptoms

Common symptoms when U0190 is present:

  • Check engine light stays on constantly, indicating a serious issue that needs to be addressed promptly.
  • Dashboard warning lights may malfunction, leading to confusion about vehicle status while driving.
  • Engine may hesitate during acceleration, causing a noticeable drop in performance and responsiveness.
  • Reduced fuel economy, potentially decreasing by 10-15%, which can significantly impact your wallet over time.
  • Inconsistent or non-functioning gauges such as speedometer or fuel gauge, leading to uncertainty about vehicle performance.

Possible Causes

Most common causes of U0190 (ordered by frequency):

  1. The most common cause of U0190 is damaged wiring or connectors, accounting for about 60% of cases. Inspecting the wiring harness for frays or loose connections is essential.
  2. Another frequent cause is a failed control module, which may happen due to age or internal failures that prevent proper communication.
  3. Corrosion at connection points can lead to intermittent communication failures. Regular maintenance and cleaning can help prevent this issue.
  4. Less common but serious causes include physical damage to the control modules from accidents or water intrusion, which can severely impair vehicle functionality.
  5. Rarely, software glitches in the vehicle's computer systems can cause false U0190 codes. Updating the software may resolve these issues.

U0190 Repair Costs

Cost Breakdown by Repair Type

Wiring and Connector Repair

Repairing damaged wiring or corroded connectors to restore communication.

  • Total: $150 - $300
  • Success rate: 85%
Control Module Replacement

Replacing a faulty control module that is unable to communicate.

  • Total: $500 - $1,200
  • Success rate: 90%
Software Update

Updating the vehicle's software to correct communication issues.

  • Total: $100 - $200
  • Success rate: 75%
Money-Saving Tips for U0190
  • 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 U0190 Diagnosis Process

Follow these systematic steps to accurately diagnose U0190. 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 using the GeekOBD APP to understand the fault context (10-15 minutes)

Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data using the GeekOBD APP 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, focusing on communication lines (20-30 minutes)

Step 3: Component testing - Use a multimeter or specific diagnostic tools to test suspected components, focusing on communication lines (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 using the GeekOBD APP (10-15 minutes)

Step 4: System function test - Verify proper operation after repairs and clear codes using the GeekOBD APP (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 ensure all systems function properly (15-20 minutes)

Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success and ensure all systems function properly (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 Focus U0190 Communication Issue

Vehicle: 2018 Ford Focus, 45,000 miles

Problem: Customer reported that the check engine light was on, and the dashboard gauges were malfunctioning.

Diagnosis: After scanning with the GeekOBD APP, U0190 was identified. A visual inspection revealed frayed wiring in the harness connected to the ECM.

Solution: Repaired the damaged wiring, ensuring all connections were secure and weatherproof.

Cost: $200 (including parts and labor)

Result: After the repair, the check engine light was cleared, and all dashboard functions returned to normal.

Case Study 2: Honda Civic Control Module Replacement

Vehicle: 2017 Honda Civic, 60,000 miles

Problem: Customer experienced intermittent starting issues, and the check engine light was illuminated.

Diagnosis: The GeekOBD APP revealed U0190. Further testing indicated a failed control module that was not communicating with the ECM.

Solution: Replaced the faulty control module with a new OEM part.

Cost: $1,000 (specific cost breakdown: $800 for the part, $200 for labor)

Result: Post-repair, the vehicle started reliably, and all systems functioned correctly.

Diagnose U0190

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: U0190
System: Network (Communication, CAN Bus)
Severity: HIGH
Category: Network Codes