C0459 - Understanding Steering Angle Sensor Issues in 2013-2017 Chevrolet Silverado and Other Models

Quick Answer

C0459 means: C0459 indicates a problem with the steering angle sensor circuit.

Fix: Check and replace faulty components Cost: $150 - $400 Time: 90-180 minutes

Can I drive with C0459? Immediate attention is recommended to avoid safety risks.

Common Questions

What does C0459 mean and how does it affect my car?

The C0459 code indicates a problem with the steering angle sensor, which is essential for stability control in your vehicle. If this code appears, it means your car may handle poorly, particularly in slippery conditions. Ignoring it may lead to more serious safety issues.

What are the most common causes of C0459 and how much does it cost to fix?

Common causes include a faulty steering angle sensor, damaged wiring, or calibration issues after repairs. Repair costs can range from $150 to $400 for sensor replacement or less for wiring repairs.

Can I drive my car with C0459 or should I stop immediately?

While you may still be able to drive, it’s not safe to ignore the C0459 code. Erratic handling and compromised stability control can make driving dangerous, especially in adverse conditions. It's best to have it checked as soon as possible.

How can I diagnose C0459 myself using GeekOBD APP?

To diagnose C0459 with the GeekOBD APP, start by connecting the app to your vehicle's OBD2 port. Retrieve the trouble codes and check the freeze frame data for context. Then, perform tests on the steering angle sensor to confirm its functionality.

What vehicles are most commonly affected by C0459?

C0459 is frequently seen in models like the 2013-2017 Chevrolet Silverado and GMC Sierra, as well as Buick and Cadillac vehicles from similar years. Always check for manufacturer recalls or TSBs related to this code.

How can I prevent C0459 from happening again?

Regular maintenance, including checking the steering system and ensuring proper wheel alignment, can help prevent C0459. Additionally, if you have any suspension work done, ensure that the steering angle sensor is recalibrated.

What is C0459?

DTC C0459 refers to a fault in the steering angle sensor circuit, which is crucial for the stability control and traction control systems in your vehicle. This code typically indicates that the signal from the steering angle sensor is out of range or that there is a malfunction in the sensor itself. The steering angle sensor helps the vehicle's computer understand the direction in which the steering wheel is turned. When this signal is compromised, it can lead to erratic vehicle handling, increased wear on tires, and compromised vehicle safety features. If your Chevrolet Silverado (2013-2017) or similar models from manufacturers such as GMC, Buick, or Cadillac experience this code, it may trigger the traction control or stability control warning lights on your dashboard. Ignoring this code could lead to more severe issues, including loss of vehicle stability, especially in adverse driving conditions. Addressing the C0459 code promptly is essential to ensure safe handling and performance of your vehicle. If you're experiencing symptoms associated with this code, it’s vital to consult with a qualified automotive technician who understands the intricacies of these systems.

System: C - Chassis (ABS, Steering, Suspension)

Symptoms

Common symptoms when C0459 is present:

  • The traction control light and stability control light may illuminate on the dashboard, indicating an issue with vehicle stability systems.
  • The steering feels unresponsive or overly sensitive, making it difficult to control the vehicle, especially during turns.
  • You may notice uneven tire wear, as incorrect steering angle readings can lead to improper alignment and excessive tire wear over time.
  • Increased fuel consumption may occur due to the vehicle's systems working harder to compensate for inaccurate steering feedback.
  • The vehicle may exhibit erratic handling, particularly in wet or slippery conditions, which can compromise safety.

Possible Causes

Most common causes of C0459 (ordered by frequency):

  1. The most common cause of C0459 is a faulty steering angle sensor, occurring in approximately 50% of cases. This can happen due to wear and tear or manufacturing defects.
  2. Another common cause is damaged wiring or poor connections in the sensor circuit, which can disrupt the signal being sent to the vehicle's computer.
  3. Calibration issues after a wheel alignment or replacement of suspension components can also trigger this code, highlighting the importance of proper alignment.
  4. A less common but serious cause might be a malfunctioning body control module (BCM), which can lead to miscommunication between the sensor and the vehicle's systems.
  5. In rare cases, software glitches in the vehicle's onboard computer may cause erroneous readings from the steering angle sensor.

C0459 Repair Costs

Cost Breakdown by Repair Type

Steering Angle Sensor Replacement

Replacing the faulty steering angle sensor with a new unit.

  • Total: $150 - $400
  • Success rate: 90%
Wiring Repair

Repairing damaged wires or connections in the sensor circuit.

  • Total: $50 - $150
  • Success rate: 85%
Money-Saving Tips for C0459
  • 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 C0459 Diagnosis Process

Follow these systematic steps to accurately diagnose C0459. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Initial visual inspection - Check for any obvious signs such as damaged wiring, loose connections, or corrosion around the steering angle sensor area (5-10 minutes)

Step 1: Initial visual inspection - Check for any obvious signs such as damaged wiring, loose connections, or corrosion around the steering angle sensor area (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 - Utilize the GeekOBD APP to retrieve all current and pending codes, along with freeze frame data to understand the fault context better (10-15 minutes)

Step 2: OBD2 scan with GeekOBD APP - Utilize the GeekOBD APP to retrieve all current and pending codes, along with freeze frame data to understand the fault context better (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 to test the voltage and resistance of the steering angle sensor, ensuring it meets the manufacturer's specifications (20-30 minutes)

Step 3: Component testing - Use a multimeter to test the voltage and resistance of the steering angle sensor, ensuring it meets the manufacturer's specifications (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 that the steering angle sensor is functioning correctly post-repair and clear any trouble codes using the GeekOBD APP (10-15 minutes)

Step 4: System function test - Verify that the steering angle sensor is functioning correctly post-repair and clear any trouble 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 that the issue has been resolved and monitor for any returning symptoms (15-20 minutes)

Step 5: Road test verification - Drive the vehicle under various conditions to confirm that the issue has been resolved and monitor for any returning symptoms (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 Sensor Replacement in a 2015 Chevrolet Silverado

Vehicle: 2015 Chevrolet Silverado, 75,000 miles

Problem: Customer reported stability control light on dashboard and erratic steering response.

Diagnosis: After scanning with the GeekOBD APP, C0459 was confirmed. Visual inspection revealed a faulty steering angle sensor.

Solution: Replaced the steering angle sensor and calibrated it using the diagnostic tool.

Cost: $350 (sensor $250, labor $100)

Result: Post-repair, the vehicle handled normally and the stability control light was off.

Case Study 2: Wiring Repair for C0459 in a 2016 GMC Sierra

Vehicle: 2016 GMC Sierra, 50,000 miles

Problem: Customer complained of traction control light on and inconsistent steering feel.

Diagnosis: OBD2 scan revealed C0459. Inspection found damaged wiring at the steering angle sensor connector.

Solution: Repaired the damaged wiring and ensured proper connections.

Cost: $80 (labor $50, materials $30)

Result: After repairs, the traction control light was off, and steering feel returned to normal.

Diagnose C0459

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: C0459
System: Chassis (ABS, Steering, Suspension)
Severity: HIGH
Category: Chassis Codes