Quick Answer
C0470 means: C0470 indicates a problem with the Steering Angle Sensor circuit.
Can I drive with C0470? Immediate attention is recommended as it affects vehicle safety.
Common Questions
What does C0470 mean and how does it affect my car?
The C0470 code indicates a malfunction in the Steering Angle Sensor, which is vital for the vehicle's stability control system. If this code appears, it can compromise the handling of your vehicle, making it crucial to have it diagnosed and repaired to ensure safe driving conditions.
What are the most common causes of C0470 and how much does it cost to fix?
The primary cause of the C0470 code is a faulty steering angle sensor, which typically costs between $150 and $300 to replace. Other causes include damaged wiring (around $100-$200) and ECU software issues (approximately $50-$100).
Can I drive my car with C0470 or should I stop immediately?
It is not advisable to drive your vehicle with a C0470 code active, as it can lead to serious handling issues and increased risk of accidents. Immediate attention is recommended to ensure your safety and the safety of others on the road.
How can I diagnose C0470 myself using GeekOBD APP?
To diagnose C0470 using the GeekOBD APP, connect the device to your car's OBD2 port, run a full scan to retrieve all codes, and analyze the freeze frame data for context. Look specifically for any other related codes that may provide insight into the issue.
What vehicles are most commonly affected by C0470?
The C0470 code is frequently reported in models like the 2015-2018 Chevrolet Silverado and GMC Sierra, among others. It's advisable to check for any manufacturer recalls or Technical Service Bulletins (TSBs) addressing this issue.
How can I prevent C0470 from happening again?
Regular maintenance can help prevent the C0470 code from reappearing. Ensure that the steering system is inspected periodically, avoid harsh driving conditions that may lead to physical impacts on the steering components, and address warning lights promptly.
What is C0470?
The DTC code C0470 refers to a malfunction in the Steering Angle Sensor (SAS) circuit. This code is prevalent in various vehicles, particularly within the Chevrolet lineup, including popular models like the 2015-2018 Chevrolet Silverado and GMC Sierra. The steering angle sensor plays a crucial role in vehicle stability, as it helps the vehicle’s electronic stability control system determine the direction of the wheels compared to the driver’s steering input. When a fault is detected in the SAS, it can trigger the check engine light and may cause the vehicle's stability control system to become disabled, leading to potential handling issues. This can compromise safety and may result in increased wear on tires and suspension components due to improper alignment. If you notice this code, it's essential to address it promptly to ensure safe operation and maintain vehicle performance. Ignoring the C0470 code could lead to more significant problems down the road, including costly repairs and decreased vehicle reliability, making it imperative to understand this code and its implications.
System: C - Chassis (ABS, Steering, Suspension)
Symptoms
Common symptoms when C0470 is present:
- The check engine light remains illuminated, indicating a potential issue with the steering angle sensor or related systems.
- You may experience difficulty in steering control, where the vehicle feels unresponsive or drifts to one side, especially during sharp turns.
- There may be a noticeable decline in fuel economy, potentially by 10-15%, due to improper traction control functions.
- The Electronic Stability Control (ESC) light may flash or remain on, signaling that the system is disabled or not functioning correctly.
- Unusual noises may arise from the steering column, indicating potential physical damage to the sensor or its wiring.
Possible Causes
Most common causes of C0470 (ordered by frequency):
- The most common cause of the C0470 code is a faulty steering angle sensor, which has a high likelihood of around 60%. This can occur due to wear and tear over time or physical damage from accidents.
- Another frequent issue is damaged wiring or connectors in the SAS circuit, contributing to about 25% of cases. Corrosion or frayed wires can disrupt the electrical flow necessary for the sensor to operate effectively.
- Improper installation after previous repairs can lead to sensor misalignment or disconnection, making up approximately 10% of the cases. Always ensure that repairs are conducted by qualified technicians using proper procedures.
- Less commonly, software issues within the vehicle’s ECU (Engine Control Unit) can also trigger the C0470 code, accounting for about 3% of cases. This may require a software update to rectify.
- A rare but possible cause involves mechanical issues within the steering column or rack, which could impede sensor function. These mechanical failures often require comprehensive inspection and potential replacement.
C0470 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: 95%
Wiring Repair
Repairing or replacing damaged wiring and connectors in the SAS circuit.
- Total: $100 - $200
- Success rate: 90%
ECU Software Update
Updating the vehicle’s ECU software to correct any software-related issues.
- Total: $50 - $100
- Success rate: 80%
Money-Saving Tips for C0470
- 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 C0470 Diagnosis Process
Follow these systematic steps to accurately diagnose C0470. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 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: Component testing - Use a multimeter or specific diagnostic tools to test the steering angle sensor’s output voltage (20-30 minutes)
Step 4: System function test - Verify proper operation after repairs and clear codes (10-15 minutes)
Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success (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 in 2016 Chevy Silverado
Vehicle: 2016 Chevrolet Silverado, 50,000 miles
Problem: Customer reported the check engine light and ESC light were illuminated.
Diagnosis: After scanning with the GeekOBD APP, the C0470 code was confirmed, indicating a faulty steering angle sensor.
Solution: Replaced the steering angle sensor and recalibrated the system.
Cost: $250 (sensor $200, labor $50)
Result: The customer noted improved handling and no warning lights post-repair.
Case Study 2: Wiring Repair in 2017 GMC Sierra
Vehicle: 2017 GMC Sierra, 30,000 miles
Problem: Customer experienced intermittent steering control issues and a C0470 code.
Diagnosis: Visual inspection revealed damaged wiring in the SAS circuit.
Solution: Repaired the wiring and secured all connections.
Cost: $150 (labor included)
Result: The repair resolved the warning light issue and restored normal steering function.