C0628 - Steering Angle Sensor Malfunction in Popular Vehicles

Quick Answer

C0628 means: C0628 indicates a malfunction in the steering angle sensor, affecting vehicle handling and safety.

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

Can I drive with C0628? Immediate attention is recommended to prevent safety issues and further damage.

Common Questions

What does C0628 mean and how does it affect my car?

The C0628 code indicates a problem with your steering angle sensor, which can lead to handling issues and may affect your vehicle's stability control system. If you ignore this warning, you could compromise your vehicle's safety and performance over time.

What are the most common causes of C0628 and how much does it cost to fix?

Common causes of C0628 include a faulty steering angle sensor, damaged wiring, and software issues. Repair costs can vary widely, typically ranging from $150 to $400, depending on the specific problem and vehicle make.

Can I drive my car with C0628 or should I stop immediately?

You may be able to drive with the C0628 code, but it's not advisable. The steering angle sensor is crucial for stability, and ignoring the issue may lead to safety hazards. It's best to have it inspected as soon as possible.

How can I diagnose C0628 myself using GeekOBD APP?

To diagnose the C0628 code using the GeekOBD APP, first connect the app to your vehicle's OBD2 port. Scan for trouble codes, check the freeze frame data for context, and then look for any specific sensor readings that may indicate a fault.

What vehicles are most commonly affected by C0628?

Commonly affected vehicles include the 2010-2015 Chevrolet Camaro and the 2013-2017 Cadillac ATS. If you own one of these models, stay alert for any symptoms associated with this code.

How can I prevent C0628 from happening again?

Preventive measures include routine inspections of the steering system and electrical components, ensuring proper maintenance and addressing any signs of wear or damage early on.

What is C0628?

The diagnostic trouble code (DTC) C0628 indicates a malfunction with the steering angle sensor, primarily found in vehicles like the 2010-2015 Chevrolet Camaro and the 2013-2017 Cadillac ATS. This sensor is crucial for the stability control system, helping to ensure that your vehicle responds appropriately to your steering inputs. When this code is triggered, it can result in issues with the vehicle’s handling and control, particularly during turns or adverse road conditions. The steering angle sensor measures the angle of the steering wheel and sends this data to the vehicle’s computer, which uses it to adjust the traction control and stability systems. If the sensor fails or sends erratic data, you may notice the traction control light or stability control light illuminating on your dashboard. In severe cases, the vehicle may enter a limp mode, restricting speed and power to protect the driver and passengers. Ignoring this code can lead to increased wear on components and reduced safety during driving conditions. Therefore, addressing a C0628 code promptly is essential for maintaining the performance and safety of your vehicle.

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

Symptoms

Common symptoms when C0628 is present:

  • The check engine light is illuminated, indicating a potential issue with the steering system.
  • Stability control warning light stays on, suggesting the system is not functioning correctly.
  • The vehicle may experience poor handling, such as difficulty steering or a feeling of looseness in the steering wheel.
  • Increased tire wear due to improper alignment caused by the faulty sensor.
  • Unexpected changes in traction control behavior, such as the system engaging during normal driving conditions.

Possible Causes

Most common causes of C0628 (ordered by frequency):

  1. The most common cause of the C0628 code is a faulty steering angle sensor, which has a likelihood of around 60%. This sensor can wear out over time due to exposure to heat and moisture.
  2. A second possible cause is wiring issues, such as damaged or corroded connectors, accounting for about 25% of cases. These problems can disrupt communication between the sensor and the vehicle's computer.
  3. Another cause could be software glitches in the vehicle’s control module, which might require a software update or reprogramming to resolve.
  4. Less commonly, the issue might stem from a malfunctioning steering column that affects sensor readings.
  5. In rare instances, the problem could be related to other systems, such as a failing ABS module that interferes with data readings.

C0628 Repair Costs

Cost Breakdown by Repair Type

Steering Angle Sensor Replacement

Replacing a faulty steering angle sensor to restore normal vehicle operation.

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

Repairing or replacing damaged wiring and connectors related to the steering angle sensor.

  • Total: $100 - $250
  • Success rate: 85%
Control Module Software Update

Updating the vehicle's software to resolve communication issues with the steering angle sensor.

  • Total: $50 - $150
  • Success rate: 75%
Money-Saving Tips for C0628
  • 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 C0628 Diagnosis Process

Follow these systematic steps to accurately diagnose C0628. 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

Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion. This inspection typically takes about 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 - Use the GeekOBD APP to retrieve all trouble codes and freeze frame data, helping to understand the context of the fault

Step 2: OBD2 scan with GeekOBD APP - Use the GeekOBD APP to retrieve all trouble codes and freeze frame data, helping to understand the context of the fault. This usually requires 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 specialized diagnostic tools to test the steering angle sensor and associated wiring for continuity and proper function

Step 3: Component testing - Use a multimeter or specialized diagnostic tools to test the steering angle sensor and associated wiring for continuity and proper function. This step can take 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 - After any repairs, verify the proper operation of the steering angle sensor and clear the codes using the GeekOBD APP, which takes about 10-15 minutes

Step 4: System function test - After any repairs, verify the proper operation of the steering angle sensor and clear the codes using the GeekOBD APP, which takes about 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 repair was successful and the code does not reappear

Step 5: Road test verification - Drive the vehicle under various conditions to confirm that the repair was successful and the code does not reappear. This could take an additional 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 Angle Sensor Replacement in a 2014 Chevrolet Camaro

Vehicle: 2014 Chevrolet Camaro, 45,000 miles

Problem: Customer reported stability control light staying on and difficulty in steering responsiveness.

Diagnosis: Upon scanning, the C0628 code was confirmed. Visual inspection revealed a faulty steering angle sensor.

Solution: The steering angle sensor was replaced, and the system was calibrated using the GeekOBD APP.

Cost: $320 (sensor: $200, labor: $120)

Result: Post-repair, the vehicle was road-tested, and the stability control system performed normally.

Case Study 2: Wiring Repair for C0628 in a 2015 Cadillac ATS

Vehicle: 2015 Cadillac ATS, 50,000 miles

Problem: Customer experienced intermittent traction control warnings and erratic steering feel.

Diagnosis: Diagnosis revealed C0628 code with damaged wiring harness leading to the steering angle sensor.

Solution: Repaired the wiring harness and ensured secure connections.

Cost: $180 (labor: $80, parts: $100 for wiring)

Result: After the repair, the warning lights cleared, and the driver noted improved steering response.

Diagnose C0628

Use GeekOBD APP for professional diagnosis!

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  • Professional-grade analysis
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Code Information

Code: C0628
System: Chassis (ABS, Steering, Suspension)
Severity: HIGH
Category: Chassis Codes