C0374 - Understanding DTC C0374: Steering Angle Sensor Issues in 2010-2015 Chevrolet Equinox and GMC Terrain

Quick Answer

C0374 means: DTC C0374 indicates a fault in the steering angle sensor circuit, affecting vehicle stability control.

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

Can I drive with C0374? Immediate attention is required to ensure safe vehicle operation.

Common Questions

What does C0374 mean and how does it affect my car?

DTC C0374 indicates a problem with your steering angle sensor, which affects how your vehicle handles, particularly during turns. Ignoring this issue can lead to compromised vehicle safety.

What are the most common causes of C0374 and how much does it cost to fix?

Common causes include a faulty steering angle sensor, electrical issues, and calibration problems. Repair costs typically range from $50 to $300 depending on the specific issue.

Can I drive my car with C0374 or should I stop immediately?

It's advisable to stop driving if you see the C0374 code, as it may affect vehicle stability and safety, especially under adverse conditions.

How can I diagnose C0374 myself using GeekOBD APP?

You can use the GeekOBD APP to scan for codes, view freeze frame data, and check live sensor readings to help identify issues with the steering angle sensor.

What vehicles are most commonly affected by C0374?

C0374 is frequently reported in 2010-2015 Chevrolet Equinox and GMC Terrain models, among others. Always check for any recalls or service bulletins related to your vehicle.

How can I prevent C0374 from happening again?

Regular maintenance, including steering system checks and ensuring electrical connections are secure, can help prevent future issues with the steering angle sensor.

What is C0374?

DTC C0374 indicates a malfunction in the steering angle sensor circuit, which is crucial for stability control systems in vehicles like the Chevrolet Equinox (2010-2015) and GMC Terrain (2010-2015). This sensor measures the angle and rate of the steering wheel's rotation, sending data to the vehicle’s electronic stability control (ESC) system. When the C0374 code is triggered, it signals that the sensor is either out of range or has a fault in its electrical circuit, leading to potential issues with vehicle handling and safety systems. Drivers might notice the stability control light illuminating on the dashboard, and in some cases, the vehicle may exhibit erratic handling characteristics. If not addressed promptly, this can compromise the safety features designed to prevent skidding or loss of control during adverse driving conditions. To resolve this, a thorough diagnostic process is essential to determine whether the sensor needs recalibration, repair, or replacement. Understanding the implications of this code can help car owners maintain optimal vehicle performance and safety.

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

Symptoms

Common symptoms when C0374 is present:

The stability control light or check engine light remains illuminated, indicating a potential issue with the steering system.
The vehicle may exhibit unstable handling, causing difficulty in steering response, especially during turns or on slippery surfaces.
Drivers may experience a noticeable decrease in traction control functionality, making the vehicle prone to skidding in adverse weather conditions.
In some cases, drivers may notice erratic steering feedback, where the steering wheel feels unusually loose or overly tight.
There may be an increase in wear and tear on tires and suspension components due to improper alignment if the issue is not addressed.

Possible Causes

Most common causes of C0374 (ordered by frequency):

{'cause': 'Faulty Steering Angle Sensor', 'likelihood': '60%', 'details': 'The most common reason for C0374 is a malfunctioning steering angle sensor, which may require replacement.'}
{'cause': 'Electrical Issues', 'details': "Wiring problems, such as damaged wires or poor connections, can prevent the sensor from sending accurate data to the vehicle's computer."}
{'cause': 'Calibration Issues', 'details': 'After replacing or servicing the steering system, the sensor may need recalibration to ensure accurate readings.'}
{'cause': 'Software Glitch', 'details': 'In rare cases, a software issue within the vehicle’s ECU can trigger the C0374 code, requiring a software update.'}
{'cause': 'Mechanical Steering Problems', 'details': "Mechanical issues within the steering assembly can affect the sensor's performance, leading to code C0374."}

C0374 Repair Costs

Cost Breakdown by Repair Type

Steering Angle Sensor Replacement

Replacing the faulty steering angle sensor with a new OEM part.

Total: $150 - $300
Success rate: 85%

Wiring Repair

Repairing or replacing damaged wiring or connectors in the sensor circuit.

Total: $50 - $150
Success rate: 90%

Money-Saving Tips for C0374

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 C0374 Diagnosis Process

Follow these systematic steps to accurately diagnose C0374. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Initial visual inspection - Check for obvious signs of damage, such as frayed wires or corroded connectors around the steering angle sensor area (5-10 minutes)

Step 1: Initial visual inspection - Check for obvious signs of damage, such as frayed wires or corroded connectors around the steering angle sensor area (5-10 minutes).