U0587 - Communication Error in Vehicle Control Modules for 2015-2020 Ford F-150 and Other Models

Quick Answer

U0587 means: The U0587 code signifies a communication error between vehicle control modules, affecting systems like engine and transmission operation.

Fix: Check and replace faulty components Cost: $150 - $350 Time: 90-180 minutes

Can I drive with U0587? Immediate attention is recommended to prevent potential safety issues and further damage.

Common Questions

What does U0587 mean and how does it affect my car?

The U0587 code indicates a communication failure between your vehicle's control modules. This can lead to various performance issues, as certain systems may not function correctly. If ignored, it can cause additional problems and costly repairs, impacting your vehicle's reliability and safety.

What are the most common causes of U0587 and how much does it cost to fix?

Common causes include damaged wiring (50% likelihood), software glitches, and faulty control modules. Repair costs can range from $150 for wiring repairs to over $1,200 for module replacements, depending on the issue.

Can I drive my car with U0587 or should I stop immediately?

It's best to avoid driving the vehicle if you see the U0587 code, as it may affect critical functions like engine performance and safety features. Immediate diagnosis and repair are recommended to prevent further issues.

How can I diagnose U0587 myself using GeekOBD APP?

Start by downloading the GeekOBD APP to your smartphone. Connect it to your vehicle's OBD2 port and run a scan to retrieve all diagnostic codes. Take note of the U0587 code and any other related codes to understand the context, then check the wiring and connectors for visible damage.

What vehicles are most commonly affected by U0587?

The U0587 code is frequently reported in 2015-2020 Ford F-150 models, but it can also appear in other vehicles utilizing complex electronic systems, such as the Ford Explorer and some Lincoln models. Check for any recalls or technical service bulletins (TSBs) related to your vehicle.

How can I prevent U0587 from happening again?

Regular maintenance, including inspections of wiring and connectors, can help prevent this code. Additionally, ensuring proper installation of any aftermarket accessories and keeping the vehicle's software updated can also minimize the risk of future communication errors.

What is U0587?

Diagnostic Trouble Code (DTC) U0587 indicates a communication issue between the vehicle's control modules, specifically related to the communication network. This code typically means that one control module is unable to communicate effectively with another, which can lead to various system malfunctions. The most frequently affected vehicles include the 2015-2020 Ford F-150 and other models from the same manufacturer that rely heavily on electronic control units (ECUs) to manage functions like engine performance, transmission operations, and advanced safety features. When the U0587 code appears, it can trigger warning lights on the dashboard, such as the check engine light, and may result in symptoms like erratic vehicle behavior, loss of power, or failure of certain features. This code often arises from issues like damaged wiring, faulty connectors, or even software glitches in the control modules. Ignoring this code can lead to more severe issues over time, including decreased performance and increased repair costs. Therefore, understanding this code is essential for maintaining your vehicle's health and ensuring safe operation.

System: U - Network (Communication, CAN Bus)

Symptoms

Common symptoms when U0587 is present:

  • The check engine light remains illuminated, indicating a persistent issue that requires diagnosis.
  • The vehicle experiences intermittent stalling or hesitation during acceleration, which can be alarming for drivers.
  • Fuel economy may decrease by 10-15%, leading to increased costs at the pump, which drivers will likely notice.
  • Loss of functionality in certain electronic components, such as power windows or infotainment systems, can also occur.
  • Unresponsive brake assist or adaptive cruise control features, which can impact driver safety.

Possible Causes

Most common causes of U0587 (ordered by frequency):

  1. The most common cause is damaged wiring or connectors, accounting for approximately 50% of cases, often due to wear and tear from environmental factors.
  2. A second common cause is software glitches in the control modules, which can occur after updates or changes to the vehicle's electrical systems.
  3. Faulty control modules can also lead to this code, and while less common, ensuring the correct modules are installed and functioning can prevent issues.
  4. Less common but serious causes include water ingress into control modules, which can lead to corrosion and electrical failures.
  5. A rare but possible cause includes electromagnetic interference from aftermarket accessories, which can disrupt communication between modules.

U0587 Repair Costs

Cost Breakdown by Repair Type

Wiring Repair

Repair of damaged wiring or connectors affecting communication between control modules.

  • Total: $150 - $350
  • Success rate: 85%
Control Module Replacement

Replacement of faulty control modules that are not communicating properly.

  • Total: $400 - $1,200
  • Success rate: 90%
Software Update

Updating the vehicle's software to eliminate glitches affecting communication.

  • Total: $100 - $200
  • Success rate: 75%
Money-Saving Tips for U0587
  • 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 U0587 Diagnosis Process

Follow these systematic steps to accurately diagnose U0587. 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 the vehicle under various conditions to confirm repair success (15-20 minutes)

Step 5: Road test verification - Drive the 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: Wiring Repair on 2016 Ford F-150

Vehicle: 2016 Ford F-150, 45,000 miles

Problem: Customer reported check engine light and intermittent performance issues.

Diagnosis: After scanning with GeekOBD APP, U0587 was confirmed along with additional codes. A visual inspection revealed damaged wiring near the engine harness.

Solution: Repaired the damaged wiring and secured connections.

Cost: $250 for wiring repair and labor.

Result: The vehicle's performance improved, and the check engine light was cleared.

Case Study 2: Control Module Replacement on 2018 Ford Explorer

Vehicle: 2018 Ford Explorer, 30,000 miles

Problem: Customer noted loss of power and erratic engine behavior.

Diagnosis: Diagnostic scan confirmed U0587 and indicated a faulty engine control module.

Solution: Replaced the engine control module with a new unit.

Cost: $1,000 for parts and labor.

Result: The vehicle operated normally post-repair, and performance issues were resolved.

Diagnose U0587

Use GeekOBD APP for professional diagnosis!

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

Code: U0587
System: Network (Communication, CAN Bus)
Severity: HIGH
Category: Network Codes