C0670 - Steering Angle Sensor Circuit Malfunction in Common Vehicles

Quick Answer

C0670 means: C0670 indicates a malfunction in the steering angle sensor circuit.

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

Can I drive with C0670? Immediate attention is recommended to avoid steering issues.

Common Questions

What does C0670 mean and how does it affect my car?

C0670 indicates a malfunction in the steering angle sensor circuit. This can lead to handling issues, affecting how your vehicle drives. If left unaddressed, it may result in more serious steering problems and could compromise your safety.

What are the most common causes of C0670 and how much does it cost to fix?

The most common causes include a faulty steering angle sensor, damaged wiring, or improper calibration. Repair costs can range from $100 for wiring repairs to $300 for sensor replacement, depending on the severity of the issue.

Can I drive my car with C0670 or should I stop immediately?

It's advisable to stop driving your vehicle if you receive a C0670 code. Continuing to drive can worsen any potential steering issues and may lead to unsafe driving conditions.

How can I diagnose C0670 myself using GeekOBD APP?

Using the GeekOBD APP, you can scan for DTCs to confirm C0670. After retrieving the code, check the freeze frame data to see the conditions under which the code was triggered, and inspect the steering angle sensor visually for damage.

What vehicles are most commonly affected by C0670?

Common vehicles include the 2013-2016 Chevrolet Malibu, 2014-2018 GMC Terrain, and various models from Ford and Chrysler. It's essential to check for any recalls or TSBs related to the steering angle sensor.

How can I prevent C0670 from happening again?

Regular maintenance checks on your steering system, including inspection of the sensor and wiring, can prevent C0670. Additionally, avoid aftermarket modifications that may interfere with the steering system.

What is C0670?

The diagnostic trouble code (DTC) C0670 indicates an issue with the steering angle sensor circuit. This sensor is crucial for the vehicle's stability control and steering systems as it helps determine the position of the steering wheel. If the sensor fails or the circuit experiences a malfunction, it can lead to various steering problems, affecting vehicle handling and safety. When this code is triggered, the vehicle's onboard diagnostic system has detected an abnormal signal from the steering angle sensor or an issue in the circuit itself. This can result from a range of factors including wiring issues, connector problems, or sensor failure. Understanding this code is essential, especially for owners of vehicles known for this issue, such as the 2013-2016 Chevrolet Malibu or the 2014-2018 GMC Terrain. Ignoring this code can lead to more severe steering issues over time, potentially compromising safety and increasing repair costs. Therefore, addressing a C0670 code promptly is crucial for maintaining vehicle performance and safety.

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

Symptoms

Common symptoms when C0670 is present:

  • The check engine light or the stability control warning light may illuminate, indicating a possible issue with the steering system.
  • Drivers may notice strange steering behavior, such as excessive play or difficulty in steering, especially during turns or when parking.
  • There could be an increase in fuel consumption due to improper handling of the steering angle during driving.
  • The vehicle's traction control system may activate unexpectedly, causing sudden braking or loss of power.
  • In some cases, drivers may experience steering wheel vibrations or noise, indicating a deeper issue within the steering system.

Possible Causes

Most common causes of C0670 (ordered by frequency):

  1. The most common cause of C0670 is a faulty steering angle sensor, which can occur in about 40% of cases. This sensor can wear out over time or suffer from internal failure due to exposure to moisture or corrosion.
  2. Another likely cause is damaged wiring or poor connections in the sensor circuit, accounting for approximately 30% of cases. This can happen from road debris or wear and tear.
  3. Improper calibration of the steering angle sensor can also lead to this code, which can happen after repairs or replacements in the steering system.
  4. Less common but serious issues include module failures in the Electronic Stability Control (ESC) system, which can lead to significant handling problems.
  5. A rare but possible cause could be interference from aftermarket modifications, such as steering wheel replacements that do not include the proper sensors.

C0670 Repair Costs

Cost Breakdown by Repair Type

Steering Angle Sensor Replacement

Replacing the faulty steering angle sensor can resolve the C0670 code effectively.

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

Repairing damaged wiring or connections in the sensor circuit can often clear the code.

  • Total: $100 - $200
  • Success rate: 80%
Money-Saving Tips for C0670
  • 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 C0670 Diagnosis Process

Follow these systematic steps to accurately diagnose C0670. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Conduct an initial visual inspection of the steering angle sensor and the wiring harness for any visible damage or corrosion (5-10 minutes)

Step 1: Conduct an initial visual inspection of the steering angle sensor and the wiring harness for any visible damage 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: Use the GeekOBD APP to perform an OBD2 scan to retrieve all codes and freeze frame data, which will provide context for the C0670 code (10-15 minutes)

Step 2: Use the GeekOBD APP to perform an OBD2 scan to retrieve all codes and freeze frame data, which will provide context for the C0670 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 with a multimeter or specialized diagnostic tool to ensure it is functioning correctly and within specification (20-30 minutes)

Step 3: Test the steering angle sensor with a multimeter or specialized diagnostic tool to ensure it is functioning correctly and within specification (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: If repairs are made, conduct a function test of the steering system to verify that the sensor is working properly and clear any codes (10-15 minutes)

Step 4: If repairs are made, conduct a function test of the steering system to verify that the sensor is working properly and clear any 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 ensure the repair has resolved the issue, paying attention to steering feel and performance (15-20 minutes)

Step 5: Perform a road test under various conditions to ensure the repair has resolved the issue, paying attention to steering feel and performance (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 on 2015 Chevrolet Malibu

Vehicle: 2015 Chevrolet Malibu, 45,000 miles

Problem: Customer reported that the check engine light was on and noted difficulty steering.

Diagnosis: After using the GeekOBD APP, C0670 was confirmed. A visual inspection revealed corrosion on the sensor connector.

Solution: Replaced the steering angle sensor and repaired the connector.

Cost: $250 (sensor $200, labor $50)

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

Case Study 2: Wiring Repair on 2014 GMC Terrain

Vehicle: 2014 GMC Terrain, 70,000 miles

Problem: Customer experienced unstable steering and received a C0670 code.

Diagnosis: Diagnostic tests indicated a short circuit in the wiring harness leading to the steering angle sensor.

Solution: Repaired the damaged wiring and ensured all connections were secure.

Cost: $150 (labor $100, materials $50)

Result: Steering issues resolved, and the vehicle passed a post-repair road test.

Diagnose C0670

Use GeekOBD APP for professional diagnosis!

  • Real-time data monitoring
  • Advanced diagnostic features
  • Step-by-step repair guidance
  • Professional-grade analysis
Download GeekOBD APP Get MOBD Adapter

Code Information

Code: C0670
System: Chassis (ABS, Steering, Suspension)
Severity: HIGH
Category: Chassis Codes