Quick Answer
U0658 means: U0658 indicates a communication error between vehicle control modules, primarily found in Ford and Lincoln vehicles.
Can I drive with U0658? Immediate attention is recommended to prevent further complications.
Common Questions
What does U0658 mean and how does it affect my car?
U0658 indicates a communication error between essential vehicle control modules. This can lead to issues such as poor engine performance, irregular shifting in the transmission, and could even affect safety features like traction control. Ignoring this could result in more severe problems down the line.
What are the most common causes of U0658 and how much does it cost to fix?
The most common causes of U0658 include damaged wiring, software glitches, and battery issues. Repair costs can vary widely; wiring repairs might range from $100 to $300, while control module replacements can be significantly higher, from $300 to $1200.
Can I drive my car with U0658 or should I stop immediately?
It's not advisable to drive your car with a U0658 code. While you might be able to drive short distances, doing so could exacerbate underlying issues, leading to more significant repair costs and safety concerns.
How can I diagnose U0658 myself using GeekOBD APP?
Using the GeekOBD APP, you can perform a detailed scan of your vehicle's systems. Start by checking for stored codes, and pay attention to freeze frame data for context. The app can help you identify whether the issue is intermittent or persistent, aiding in your diagnosis.
What vehicles are most commonly affected by U0658?
U0658 is most commonly found in Ford and Lincoln vehicles from 2008 to 2018. Models like the Ford F-150, Explorer, and Lincoln Navigator frequently report this issue.
How can I prevent U0658 from happening again?
Regular maintenance, including checking electrical connections and ensuring the battery is healthy, can help prevent U0658. It's also important to stay on top of software updates for your vehicle's control modules.
What is U0658?
The Diagnostic Trouble Code (DTC) U0658 indicates a communication error between vehicle control modules, particularly in Ford and Lincoln vehicles manufactured from 2008 to 2018. This code is often associated with issues in the communication bus system, which is essential for the integration of various electronic systems in your vehicle. When U0658 is triggered, it suggests that a control module is not communicating properly with others, which can lead to malfunctions in critical systems like the engine, transmission, and safety features. The impact of this code can vary widely; you may experience symptoms such as erratic engine performance, problems with shifting, or warning lights illuminating on the dashboard. Ignoring this code can lead to further issues, including reduced fuel efficiency and potential safety risks, as systems designed to work together may fail to operate as intended. For example, if the engine control module (ECM) cannot communicate with the transmission control module (TCM), it may not execute shifts smoothly, impacting drivability. It's crucial to address U0658 promptly to prevent cascading failures in your vehicle's electronic systems.
System: U - Network (Communication, CAN Bus)
Symptoms
Common symptoms when U0658 is present:
- Check engine light illuminates or remains on continuously, indicating a need for diagnostics.
- Engine may hesitate or stall during acceleration due to failed communication between modules.
- Transmission shifts may become irregular, leading to a rough driving experience.
- Increased fuel consumption might be noted, often around 10-20% more than normal, due to miscommunication affecting engine performance.
- Dashboard warning lights related to stability control or ABS may also activate as a result of module communication issues.
Possible Causes
Most common causes of U0658 (ordered by frequency):
- The most common cause is damaged wiring or connectors in the communication harness, with about 50% likelihood. This can happen due to wear and tear or exposure to elements.
- A second common cause involves software glitches in the control modules, which can occur due to updates or malfunctions.
- Thirdly, poor battery health or issues with the vehicle's electrical system can lead to insufficient power supply to modules, creating communication failures. Regular battery checks can prevent this.
- Less common but serious causes may include failed control modules that require replacement, which can be costly.
- A rare cause might be an internal fault within a specific module, which would necessitate further diagnostic efforts to isolate.
U0658 Repair Costs
Cost Breakdown by Repair Type
Wiring Harness Repair
Repairing or replacing damaged wiring or connectors that hinder communication.
- Total: $100 - $300
- Success rate: 85%
Control Module Replacement
Replacing faulty control modules that cannot communicate effectively.
- Total: $300 - $1200
- Success rate: 95%
Money-Saving Tips for U0658
- 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 U0658 Diagnosis Process
Follow these systematic steps to accurately diagnose U0658. 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, which could take about 5-10 minutes
Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion, which could take about 5-10 minutes.
Step 2: Step 2: OBD2 scan with GeekOBD APP - Retrieve all trouble codes and freeze frame data to capture the context of the fault, taking around 10-15 minutes
Step 2: OBD2 scan with GeekOBD APP - Retrieve all trouble codes and freeze frame data to capture the context of the fault, taking around 10-15 minutes.
Step 3: Step 3: Component testing - Use a multimeter or specific diagnostic tools to test suspected components for proper function, which may take 20-30 minutes
Step 3: Component testing - Use a multimeter or specific diagnostic tools to test suspected components for proper function, which may take 20-30 minutes.
Step 4: Step 4: System function test - After repairs, verify proper operation of the communication system and clear codes
Step 4: System function test - After repairs, verify proper operation of the communication system and clear codes. This step may take 10-15 minutes.
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to ensure successful repair, which will take about 15-20 minutes
Step 5: Road test verification - Drive the vehicle under various conditions to ensure successful repair, which will take about 15-20 minutes.
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: 2016 Ford F-150 with U0658 Code
Vehicle: 2016 Ford F-150, 45,000 miles
Problem: Customer reported erratic shifting and check engine light.
Diagnosis: Conducted a visual inspection and found damaged wiring in the communication harness.
Solution: Repaired the wiring and cleared the codes, restoring proper communication.
Cost: $250 (including parts and labor)
Result: The vehicle operated normally after repairs, with no further issues reported.
Case Study 2: 2014 Lincoln MKX with U0658 Code
Vehicle: 2014 Lincoln MKX, 60,000 miles
Problem: Customer experienced stalling and dashboard warning lights.
Diagnosis: Performed OBD2 scanning and identified U0658 as the primary fault.
Solution: Replaced the faulty engine control module and updated software.
Cost: $950 (parts and labor included)
Result: Post-repair, the vehicle ran smoothly with no recurrence of symptoms.