U0559 - Understanding DTC U0559: Common Issues in 2017-2020 Ford F-150 and Chevrolet Silverado

Quick Answer

U0559 means: DTC U0559 indicates a communication failure with the steering column control module.

Fix: Check and replace faulty components Cost: $300 - $700 Time: 90-180 minutes

Can I drive with U0559? Immediate attention is recommended to prevent steering issues.

Common Questions

What does U0559 mean and how does it affect my car?

DTC U0559 indicates a communication failure between the Engine Control Module and the Steering Column Control Module, leading to potential steering issues and affecting safety features. If left unresolved, it can cause significant mechanical failures.

What are the most common causes of U0559 and how much does it cost to fix?

Common causes include a faulty Steering Column Control Module, damaged wiring, and electrical interference. Repair costs can range from $150 for wiring repairs to $700 for module replacements, depending on the specific issue.

Can I drive my car with U0559 or should I stop immediately?

It is advised to avoid driving the vehicle until the issue is diagnosed and repaired. Ignoring U0559 can lead to severe steering problems that may compromise your safety.

How can I diagnose U0559 myself using GeekOBD APP?

Using the GeekOBD APP, connect your device to the OBD2 port, scan for trouble codes, and review the freeze frame data. This will help you understand the conditions when the code was triggered.

What vehicles are most commonly affected by U0559?

Vehicles like the 2017-2020 Ford F-150 and Chevrolet Silverado frequently experience U0559 due to their complex electrical systems. Checking for any recalls or Technical Service Bulletins (TSBs) related to this code is also recommended.

How can I prevent U0559 from happening again?

Regular inspections of the steering system, avoiding aftermarket electrical modifications, and promptly addressing any dashboard warning lights can help prevent future occurrences of U0559.

What is U0559?

DTC U0559 is a diagnostic trouble code indicating a communication issue between the vehicle's control modules, often referred to as a 'Lost Communication with the Steering Column Control Module.' This issue is prevalent in various makes and models, including the 2017-2020 Ford F-150 and the Chevrolet Silverado. When this code is triggered, it usually means that the Engine Control Module (ECM) is unable to communicate effectively with the Steering Column Control Module (SCCM). This can lead to several performance issues. For instance, you may notice that the steering wheel feels unusually stiff or unresponsive, or you might experience problems with features like the cruise control. Ignoring this code can lead to further complications, such as complete steering failure or other electrical system malfunctions. The common symptoms associated with U0559 include warning lights on the dashboard, erratic steering behavior, and difficulties in engaging advanced safety features like lane assist. As a car owner, it's essential to address this code promptly to ensure your vehicle remains safe and reliable on the road.

System: U - Network (Communication, CAN Bus)

Symptoms

Common symptoms when U0559 is present:

  • Check engine light remains illuminated, indicating a serious issue that needs attention.
  • Steering wheel feels unusually stiff or unresponsive, making it difficult to control the vehicle.
  • Cruise control and advanced driver-assistance systems may fail to operate correctly, affecting overall driving safety.
  • Dashboard warning lights for the steering system are frequently triggered, causing concern.
  • Inconsistent steering behavior, such as sudden loss of power steering, can occur, posing a safety risk.

Possible Causes

Most common causes of U0559 (ordered by frequency):

  1. The most common cause of U0559 is a faulty Steering Column Control Module (SCCM), with a 60% likelihood of occurrence. This module may fail due to electrical issues or internal component failure.
  2. Another frequent cause is damaged wiring or poor connections in the steering system, which can occur from wear and tear or environmental factors, accounting for about 25% of cases.
  3. Electrical interference from aftermarket devices or modifications can lead to communication errors. Preventive measures include ensuring all installations are done correctly.
  4. Less commonly, software glitches or updates in the vehicle’s ECU can cause U0559, particularly in newer models, with a 10% chance of occurrence.
  5. A rare but possible cause is a complete failure of the Engine Control Module (ECM), which can lead to multiple systems failing simultaneously.

U0559 Repair Costs

Cost Breakdown by Repair Type

SCCM Replacement

Replacing the Steering Column Control Module due to failure.

  • Total: $300 - $700
  • Success rate: 85%
Wiring Repair

Repairing damaged wiring or connections in the steering system.

  • Total: $150 - $400
  • Success rate: 75%
Money-Saving Tips for U0559
  • 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 U0559 Diagnosis Process

Follow these systematic steps to accurately diagnose U0559. 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 the SCCM and associated wiring (20-30 minutes)

Step 3: Component testing - Use a multimeter or specific diagnostic tools to test the SCCM and associated wiring (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 (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: Steering Control Module Replacement in 2018 Ford F-150

Vehicle: 2018 Ford F-150, 45,000 miles

Problem: Customer reported the check engine light and steering issues.

Diagnosis: Initial scan revealed DTC U0559. Visual inspection showed corrosion in the SCCM connectors.

Solution: Replaced the Steering Column Control Module and repaired the wiring harness.

Cost: $650 (parts: $400, labor: $250)

Result: After the repair, the vehicle's steering function returned to normal, and no further issues were detected.

Case Study 2: Wiring Repair for U0559 in 2019 Chevrolet Silverado

Vehicle: 2019 Chevrolet Silverado, 30,000 miles

Problem: Customer experienced intermittent steering lock and dashboard warnings.

Diagnosis: DTC U0559 confirmed; damaged wiring discovered during inspection.

Solution: Repaired the damaged wiring and connections to restore communication.

Cost: $250 (parts: $50, labor: $200)

Result: Steering performance improved significantly, and the warning lights were cleared.

Diagnose U0559

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: U0559
System: Network (Communication, CAN Bus)
Severity: HIGH
Category: Network Codes