Quick Answer
C0671 means: DTC C0671 indicates a malfunction in the steering angle sensor, affecting vehicle stability and safety features.
Can I drive with C0671? Immediate attention recommended to ensure vehicle safety and performance.
Common Questions
What does C0671 mean and how does it affect my car?
The C0671 code indicates a problem with the steering angle sensor, which is crucial for vehicle stability and safety. If this sensor fails, you may notice issues with steering response and possible warning lights. Long-term effects can lead to unsafe driving conditions and accelerated tire wear.
What are the most common causes of C0671 and how much does it cost to fix?
The primary cause of the C0671 code is a faulty steering angle sensor, which can cost between $200 and $400 to replace. Other causes include wiring issues, calibration problems, and software errors, with costs varying based on the specific repair needed.
Can I drive my car with C0671 or should I stop immediately?
It's not advisable to drive with the C0671 code active, as it indicates potential issues with your steering system. Ignoring this code could lead to a loss of vehicle control or failure of safety features, so it is best to have it checked as soon as possible.
How can I diagnose C0671 myself using GeekOBD APP?
Using the GeekOBD APP, you can scan for OBD2 codes, view freeze frame data, and monitor live data from the steering angle sensor. This will help you determine if the sensor is functioning correctly or if further inspections are necessary.
What vehicles are most commonly affected by C0671?
Commonly affected vehicles include the 2010-2016 Chevrolet Equinox, 2011-2019 GMC Terrain, and similar models from GM. It's important to check for recalls or Technical Service Bulletins (TSBs) related to the steering angle sensor for your specific vehicle.
How can I prevent C0671 from happening again?
Regular maintenance, including checking electrical connections and ensuring no corrosion develops, can help prevent C0671. Additionally, be mindful of any suspension work that might require recalibrating the steering angle sensor.
What is C0671?
DTC C0671 indicates a malfunction related to the steering angle sensor, a crucial component in modern vehicles that helps maintain stability control, traction control, and advanced driver assistance systems (ADAS). This code often appears in vehicles from manufacturers like Chevrolet and GMC, particularly in models such as the 2010-2016 Chevrolet Equinox and 2011-2019 GMC Terrain. When the steering angle sensor fails, it can lead to erratic vehicle handling, increased tire wear, and compromised safety systems. The steering angle sensor measures the position of the steering wheel and relays this information to the vehicle's computer. A malfunction can disrupt the interaction between the sensor and the vehicle’s electronic control unit (ECU), triggering warning lights and affecting systems like electronic stability control (ESC). Drivers may experience symptoms like strange steering behavior, warning lights on the dashboard, or difficulty maintaining a straight line while driving. Left unchecked, this issue can cause more severe problems over time. Therefore, understanding and addressing the C0671 code is essential for maintaining vehicle safety and performance.
System: C - Chassis (ABS, Steering, Suspension)
Symptoms
Common symptoms when C0671 is present:
- Check engine light stays on constantly, indicating a persistent issue with the steering angle sensor.
- Steering feels unresponsive or overly sensitive, making it hard to control the vehicle effectively.
- Warning lights for traction control or stability control illuminate, suggesting that these systems are not functioning properly.
- Increased tire wear due to improper alignment caused by inaccurate steering angle readings.
- Difficulty in straight-line driving, requiring constant correction to maintain direction.
Possible Causes
Most common causes of C0671 (ordered by frequency):
- {'cause': 'Faulty steering angle sensor (70%)', 'details': 'The most common cause of code C0671 is a defective steering angle sensor, which can fail due to wear and tear or internal short circuits.'}
- {'cause': 'Wiring issues (15%)', 'details': 'Damaged or corroded wiring that connects the sensor to the ECU can lead to incorrect signals being sent, triggering the code.'}
- {'cause': 'Calibration issues (10%)', 'details': 'If the steering angle sensor becomes uncalibrated after a battery disconnect or after suspension work, it may need to be reset using a diagnostic tool.'}
- {'cause': 'Software errors (4%)', 'details': 'Occasionally, a software glitch in the vehicle’s ECU can misinterpret sensor data, causing the code to appear.'}
- {'cause': 'Less common mechanical failure (1%)', 'details': 'On rare occasions, mechanical failures within the steering column or rack can impact sensor performance.'}
C0671 Repair Costs
Cost Breakdown by Repair Type
Steering Angle Sensor Replacement
Replacing the faulty steering angle sensor with a new OEM part.
- Total: $200 - $400
- Success rate: 95%
Wiring Repair
Repairing or replacing damaged wiring harness leading to the sensor.
- Total: $100 - $250
- Success rate: 85%
ECU Reprogramming
Reprogramming the ECU if software issues are detected.
- Total: $75 - $150
- Success rate: 70%
Money-Saving Tips for C0671
- 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 C0671 Diagnosis Process
Follow these systematic steps to accurately diagnose C0671. 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 the steering angle sensor and associated circuits (20-30 minutes)
Step 3: Component testing - Use a multimeter or specific diagnostic tools to test the steering angle sensor and associated circuits (20-30 minutes).
Step 4: Step 4: System function test - Verify proper operation after repairs and use the GeekOBD APP to clear codes (10-15 minutes)
Step 4: System function test - Verify proper operation after repairs and use the GeekOBD APP to clear codes (10-15 minutes).
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success and check for the reappearance of the code (15-20 minutes)
Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success and check for the reappearance of the code (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 2012 Chevrolet Equinox
Vehicle: 2012 Chevrolet Equinox, 80,000 miles
Problem: Customer reported the check engine light on and unusual steering response.
Diagnosis: Performed a full OBD2 scan with GeekOBD APP, confirming C0671. Inspected the steering angle sensor and identified it as faulty.
Solution: Replaced the steering angle sensor and recalibrated the system using diagnostic tools.
Cost: $320 (Parts: $200 for the sensor, $120 for labor)
Result: Customer reported normal steering response post-repair and no reoccurrence of the check engine light.
Case Study 2: Wiring Repair on 2015 GMC Terrain
Vehicle: 2015 GMC Terrain, 65,000 miles
Problem: Customer experienced steering issues and dashboard warning lights.
Diagnosis: After scanning with GeekOBD APP, C0671 was confirmed. Wiring inspection revealed corrosion at the connector.
Solution: Repaired the damaged wiring and ensured a secure connection.
Cost: $180 (Parts: $30 for wiring materials, $150 for labor)
Result: Steering function restored, and no further codes appeared.