C055E - Understanding the Steering Angle Sensor Malfunction in 2014-2020 Chevrolet Silverado and GMC Sierra

Quick Answer

C055E means: C055E indicates a fault with the steering angle sensor.

Fix: Check and replace faulty components Cost: $150 - $300 Time: 90-180 minutes

Can I drive with C055E? Immediate attention is recommended to avoid safety issues.

Common Questions

What does C055E mean and how does it affect my car?

C055E indicates a malfunction in your steering angle sensor, which can affect your vehicle's stability and handling. If this code appears, your car may become less responsive to steering inputs, which could be dangerous, especially in adverse conditions.

What are the most common causes of C055E and how much does it cost to fix?

Common causes include a faulty steering angle sensor, damaged wiring, or poor calibration. Repair costs can range from $75 for wiring repairs to $300 for sensor replacement.

Can I drive my car with C055E or should I stop immediately?

It's advisable to stop driving your vehicle if you see the C055E code, as it can lead to loss of control and safety hazards. Have it diagnosed as soon as possible.

How can I diagnose C055E myself using GeekOBD APP?

Use the GeekOBD APP to scan your vehicle for codes. Check for C055E and any accompanying codes. Review freeze frame data to understand driving conditions when the code was triggered.

What vehicles are most commonly affected by C055E?

Commonly affected vehicles include the 2014-2020 Chevrolet Silverado and GMC Sierra, among others. Always check for manufacturer recalls or technical service bulletins (TSBs) related to this code.

How can I prevent C055E from happening again?

Regular maintenance of your vehicle's steering system, including checks of the steering angle sensor and wiring, can help prevent issues. Additionally, immediately addressing any warning lights can prevent further complications.

What is C055E?

The diagnostic trouble code C055E indicates a malfunction related to the steering angle sensor, which is a vital component in modern vehicles equipped with electronic stability control (ESC) and traction control systems. This sensor monitors the position of the steering wheel and sends data to the vehicle's computer to help maintain stability and control. When C055E is triggered, it means that the steering angle sensor is either out of range or not functioning correctly. This can lead to issues like loss of traction control, instability while driving, and increased wear on tires due to improper steering alignment. Car owners may notice that their vehicle has become less responsive to steering inputs or that warning lights appear on the dashboard. Ignoring this code can lead to further complications, including increased repair costs and a less safe driving experience. If you're driving a 2014-2020 Chevrolet Silverado or GMC Sierra, it's critical to address this issue promptly to ensure your vehicle operates safely and efficiently.

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

Symptoms

Common symptoms when C055E is present:

  • The 'Check Engine' light remains illuminated, indicating a persistent issue requiring immediate attention.
  • The vehicle may experience decreased responsiveness during turns, making it feel unstable or difficult to control.
  • Drivers may notice that the traction control system is disabled, resulting in potential safety hazards during adverse weather conditions.
  • Unusual noises or vibrations from the steering column, suggesting a mechanical failure connected to the sensor.
  • A noticeable decrease in fuel efficiency could occur due to excessive steering adjustments needed to maintain control.

Possible Causes

Most common causes of C055E (ordered by frequency):

  1. The most common cause is a malfunctioning steering angle sensor, occurring in about 70% of cases. This can happen due to wear and tear or electrical issues.
  2. Another possible cause is damaged wiring or connectors, which may lead to poor communication between the sensor and the vehicle's computer.
  3. Poor calibration of the steering angle sensor can also result in the C055E code. Regular maintenance checks can help prevent this issue.
  4. Less common but serious causes include issues with the vehicle's electronic control unit (ECU), which could require a more extensive diagnostic process.
  5. A rare cause could be a mechanical failure in the steering system itself, which may necessitate a complete overhaul of the steering assembly.

C055E Repair Costs

Cost Breakdown by Repair Type

Steering Angle Sensor Replacement

Replacing the faulty steering angle sensor to restore proper function.

  • Total: $150 - $300
  • Success rate: 90%
Wiring Repair

Repairing damaged wiring or connectors to restore communication between the sensor and ECU.

  • Total: $75 - $200
  • Success rate: 80%
ECU Reprogramming

Reprogramming the vehicle's ECU if calibration issues are detected.

  • Total: $100 - $250
  • Success rate: 85%
Money-Saving Tips for C055E
  • 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 C055E Diagnosis Process

Follow these systematic steps to accurately diagnose C055E. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Perform an initial visual inspection of the steering angle sensor and surrounding wiring for any signs of wear, damage, or loose connections (5-10 minutes)

Step 1: Perform an initial visual inspection of the steering angle sensor and surrounding wiring for any signs of wear, damage, or loose connections (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: Use the GeekOBD APP to scan the vehicle's OBD2 system, retrieving all stored codes and freeze frame data to gain context for the C055E code (10-15 minutes)

Step 2: Use the GeekOBD APP to scan the vehicle's OBD2 system, retrieving all stored codes and freeze frame data to gain context for the C055E code (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: Test the steering angle sensor using a multimeter to check for proper voltage readings and functionality (20-30 minutes)

Step 3: Test the steering angle sensor using a multimeter to check for proper voltage readings and functionality (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: Conduct a system function test to ensure that the sensor operates correctly post-repair and reset any fault codes (10-15 minutes)

Step 4: Conduct a system function test to ensure that the sensor operates correctly post-repair and reset any fault 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: Perform a road test under various conditions to verify successful repair and ensure the steering system operates as expected (15-20 minutes)

Step 5: Perform a road test under various conditions to verify successful repair and ensure the steering system operates as expected (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: Restoring Control in a 2016 Chevrolet Silverado

Vehicle: 2016 Chevrolet Silverado, 45,000 miles

Problem: Customer reported a 'Service Stabilitrak' warning and loss of steering responsiveness.

Diagnosis: Initial scan revealed the C055E code alongside several other stability control codes. Visual inspection indicated damaged wiring.

Solution: Repaired the damaged wiring and replaced the steering angle sensor.

Cost: $250 (includes $150 for the sensor and $100 for wiring repair)

Result: Post-repair road test confirmed full functionality and no reoccurrence of warning lights.

Case Study 2: Fixing Steering Issues in a 2018 GMC Sierra

Vehicle: 2018 GMC Sierra, 30,000 miles

Problem: Customer experienced erratic steering and dashboard warning lights.

Diagnosis: Diagnostic tests showed C055E. Multimeter testing confirmed the sensor was not transmitting correct values.

Solution: Replaced the steering angle sensor and performed ECU reprogramming.

Cost: $300 (includes $200 for the sensor replacement and $100 for reprogramming)

Result: Customer reported restored steering response and no warning lights after the repair.

Diagnose C055E

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: C055E
System: Chassis (ABS, Steering, Suspension)
Severity: HIGH
Category: Chassis Codes