C0675 - Understanding DTC C0675: Common Issues in 2015-2020 Chevrolet Silverado and GMC Sierra

Quick Answer

C0675 means: DTC C0675 indicates a problem with the steering angle sensor circuit.

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

Can I drive with C0675? Immediate attention is advised to ensure vehicle safety.

Common Questions

What does C0675 mean and how does it affect my car?

C0675 indicates a fault in the steering angle sensor circuit, which can lead to erratic steering behavior, reduced handling, and compromised safety if not addressed.

What are the most common causes of C0675 and how much does it cost to fix?

The most common cause of C0675 is a faulty steering angle sensor, with repair costs ranging from $150 to $300. Other causes include damaged wiring and misalignment.

Can I drive my car with C0675 or should I stop immediately?

It is advised to stop driving your vehicle if C0675 appears, as it may lead to steering issues that can compromise your safety on the road.

How can I diagnose C0675 myself using GeekOBD APP?

You can use the GeekOBD APP to scan your vehicle for codes, view freeze frame data, and perform a basic function test of the steering angle sensor.

What vehicles are most commonly affected by C0675?

C0675 frequently affects 2015-2020 Chevrolet Silverado and GMC Sierra models, particularly those with electronic stability control systems.

How can I prevent C0675 from happening again?

Regular maintenance, including alignment checks and keeping electrical connections clean and dry, can help prevent future occurrences of C0675.

What is C0675?

The Diagnostic Trouble Code (DTC) C0675 is associated with the steering angle sensor circuit. This code indicates that the powertrain control module (PCM) has detected a malfunction in the steering angle sensor or the associated wiring. The steering angle sensor plays a critical role in the vehicle's stability control system, providing data on the position of the steering wheel and helping the vehicle maintain proper handling. When C0675 is triggered, it may lead to issues such as unresponsive or erratic steering, which can compromise vehicle safety and performance. In addition, the check engine light will typically illuminate, prompting the driver to investigate the issue further. It's important to address this code promptly; ignoring it could lead to more serious problems down the line, including increased wear on other vehicle components, reduced fuel efficiency, and in severe cases, loss of vehicle control. If you own a Chevrolet Silverado from 2015 to 2020 or a GMC Sierra from the same period, it's crucial to be aware of this code and its implications to ensure your vehicle remains safe and reliable.

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

Symptoms

Common symptoms when C0675 is present:

  • The check engine light stays on constantly, indicating a malfunction in the steering angle sensor system.
  • Drivers may experience erratic or unresponsive steering, making it difficult to control the vehicle, especially during turns.
  • Fuel economy may decrease by 10-15% due to the vehicle's stability control system working harder to compensate for the faulty sensor.
  • A noticeable increase in steering effort might be felt, particularly during low-speed maneuvers, leading to driver fatigue.
  • The vehicle may exhibit poor handling characteristics, especially in adverse weather conditions, increasing the risk of accidents.

Possible Causes

Most common causes of C0675 (ordered by frequency):

  1. The most common cause of C0675 is a faulty steering angle sensor, which accounts for about 60% of cases. This sensor may fail due to wear and tear or moisture ingress.
  2. Second on the list is damaged wiring or connectors within the steering angle sensor circuit. Corroded or loose connections can disrupt the signal being sent to the PCM.
  3. Another cause could be a misaligned steering wheel, which can throw off the sensor calibration. Regular alignment checks can prevent this issue.
  4. A less common but serious cause is a malfunctioning powertrain control module (PCM), which can misinterpret signals from the steering angle sensor.
  5. Rarely, C0675 can be triggered by software glitches in the vehicle's computer system, which may require a reflash or update of the PCM.

C0675 Repair Costs

Cost Breakdown by Repair Type

Steering Angle Sensor Replacement

Replacing the faulty steering angle sensor to restore proper functionality.

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

Repairing damaged wiring or connectors to ensure a stable connection.

  • Total: $100 - $200
  • Success rate: 80%
Money-Saving Tips for C0675
  • 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 C0675 Diagnosis Process

Follow these systematic steps to accurately diagnose C0675. 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 steering angle sensor and associated wiring (20-30 minutes)

Step 3: Component testing - Use a multimeter or specific diagnostic tools to test the steering angle sensor 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 and ensure all systems are functioning correctly (15-20 minutes)

Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success and ensure all systems are functioning correctly (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 Issues in 2016 Chevrolet Silverado

Vehicle: 2016 Chevrolet Silverado 1500, 70,000 miles

Problem: Customer reported the check engine light was on, and steering felt heavy.

Diagnosis: Performed OBD2 scan and identified C0675. Inspected wiring and found corrosion.

Solution: Replaced the steering angle sensor and repaired corroded wiring.

Cost: $250 (sensor: $150, labor: $100)

Result: After repairs, the check engine light was cleared, and steering returned to normal.

Case Study 2: Erratic Steering in 2019 GMC Sierra

Vehicle: 2019 GMC Sierra 1500, 50,000 miles

Problem: Driver experienced unresponsive steering and check engine light.

Diagnosis: Scanned for codes; confirmed C0675 and tested the steering angle sensor.

Solution: Recalibrated the sensor and ensured proper alignment.

Cost: $180 (labor: $80, calibration: $100)

Result: Vehicle handled better post-repair, and no further issues were reported.

Diagnose C0675

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: C0675
System: Chassis (ABS, Steering, Suspension)
Severity: HIGH
Category: Chassis Codes