Quick Answer
U059A means: U059A indicates a communication failure with the steering angle sensor.
Can I drive with U059A? Immediate attention is recommended to ensure vehicle safety.
Common Questions
What does U059A mean and how does it affect my car?
The U059A code means there's a communication failure between your vehicle's control modules and the steering angle sensor. This can lead to issues like erratic steering or malfunctioning stability control systems, making your car less safe to drive.
What are the most common causes of U059A and how much does it cost to fix?
Common causes include damaged wiring (about 60% likelihood) and faulty steering angle sensors. Repair costs can range from $100 to $400 depending on the issue and necessary parts.
Can I drive my car with U059A or should I stop immediately?
While you may be able to drive, it's not recommended as this code can affect vital safety systems. It's best to address the issue promptly to avoid potential accidents.
How can I diagnose U059A myself using GeekOBD APP?
Using the GeekOBD APP, you can scan for the U059A code and other related codes. Look for freeze frame data to understand the context of the fault, and check for any recent changes in vehicle behavior.
What vehicles are most commonly affected by U059A?
Commonly affected vehicles include the 2015-2018 Ford F-150 and other models from manufacturers such as Chevrolet and GMC that utilize similar control systems.
How can I prevent U059A from happening again?
Routine inspections of your vehicle's electrical systems and ensuring proper sealing from moisture can help prevent future occurrences of U059A. Regular maintenance also helps detect early signs of wear.
What is U059A?
The U059A diagnostic trouble code (DTC) indicates a communication issue between the various control modules in your vehicle, specifically pointing to a loss of communication with the steering angle sensor. This code is often triggered when there is an issue with the wiring, connectors, or the sensor itself. In simpler terms, the vehicle's onboard computer system is having trouble talking to the steering angle sensor, which can lead to various performance issues. Drivers may notice that their vehicle's stability control system is malfunctioning, which can impact driving safety. If left unresolved, it may lead to further electronic malfunctions, affecting systems like traction control and anti-lock brakes. Additionally, vehicles equipped with advanced driver-assistance systems (ADAS) may exhibit erratic behavior, as many of these systems rely on accurate input from the steering angle sensor. For example, common vehicles affected include the 2015-2018 Ford F-150, where users have reported frequent occurrences of this code, leading to concerns over vehicle safety and handling. Addressing this code promptly is crucial for maintaining optimal vehicle performance and safety.
System: U - Network (Communication, CAN Bus)
Symptoms
Common symptoms when U059A is present:
- The check engine light remains on, indicating a persistent issue that needs attention.
- Drivers may experience erratic steering response, making the vehicle feel unstable or harder to control.
- Increased wear on tires due to improper alignment as the vehicle's stability control systems may not function correctly.
- The dashboard may display warnings related to stability control or traction control systems.
- In some cases, the vehicle may enter a limp mode, reducing engine power to protect against further damage.
Possible Causes
Most common causes of U059A (ordered by frequency):
- The most common cause is damaged wiring or corroded connectors, accounting for about 60% of cases. This may stem from exposure to moisture or road debris.
- Another frequent cause is a faulty steering angle sensor, which can fail due to wear and tear, impacting its ability to communicate effectively.
- In some instances, software glitches in the vehicle's ECU (engine control unit) may lead to communication errors, often resolved with an update.
- Less common but serious causes include a malfunctioning ABS (anti-lock braking system) module that can disrupt communication pathways.
- A rare cause could be an overall electrical system failure, where multiple modules and sensors are affected, requiring extensive diagnostics.
U059A Repair Costs
Cost Breakdown by Repair Type
Steering Angle Sensor Replacement
Replacing the faulty steering angle sensor to restore communication.
- Total: $200 - $400
- Success rate: 90%
Wiring Repair
Repairing or replacing damaged wiring and connectors to ensure proper communication.
- Total: $100 - $250
- Success rate: 85%
Money-Saving Tips for U059A
- 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 U059A Diagnosis Process
Follow these systematic steps to accurately diagnose U059A. 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).
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).
Step 3: Step 3: Component testing - Use a multimeter or specific diagnostic tools to test suspected components, focusing on the steering angle sensor (20-30 minutes)
Step 3: Component testing - Use a multimeter or specific diagnostic tools to test suspected components, focusing on the steering angle sensor (20-30 minutes).
Step 4: Step 4: System function test - Verify proper operation after repairs and clear codes to see if the issue reoccurs (10-15 minutes)
Step 4: System function test - Verify proper operation after repairs and clear codes to see if the issue reoccurs (10-15 minutes).
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to confirm the repair success, especially in turns and during acceleration (15-20 minutes)
Step 5: Road test verification - Drive the vehicle under various conditions to confirm the repair success, especially in turns and during acceleration (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: Steering Angle Sensor Replacement on 2017 Ford F-150
Vehicle: 2017 Ford F-150, 45,000 miles
Problem: The driver reported the check engine light was on and experienced steering issues.
Diagnosis: An OBD2 scan revealed the U059A code, prompting further inspection of the steering angle sensor.
Solution: Replaced the steering angle sensor and repaired damaged wiring.
Cost: $350 (sensor $200, wiring $150)
Result: Post-repair, the check engine light was cleared, and the steering functioned normally.
Case Study 2: Wiring Repair on 2016 Chevrolet Silverado
Vehicle: 2016 Chevrolet Silverado, 60,000 miles
Problem: Customer complained of intermittent stability control warnings and a check engine light.
Diagnosis: After scanning for codes, U059A was found; physical inspection revealed corroded connectors.
Solution: Repaired the wiring and connectors to restore communication.
Cost: $150 (parts and labor)
Result: The vehicle passed all diagnostic checks and stability control warnings ceased.