Quick Answer
C0070 means: C0070 is a diagnostic trouble code indicating a problem with the steering angle sensor.
Can I drive with C0070? Immediate attention is recommended to ensure safety and vehicle handling.
Common Questions
What does C0070 mean and how does it affect my car?
C0070 means there's an issue with the steering angle sensor, affecting your car's handling and safety features. If unresolved, it can lead to stability issues and increased risks while driving.
What are the most common causes of C0070 and how much does it cost to fix?
Common causes include a faulty steering angle sensor, damaged wiring, or issues with the ECU. Repair costs can range from $150 to $300 for sensor replacement, depending on labor and parts.
Can I drive my car with C0070 or should I stop immediately?
While you may be able to drive short distances, it’s advisable to avoid long trips and high speeds until the issue is resolved, as it can compromise your vehicle’s handling and safety.
How can I diagnose C0070 myself using GeekOBD APP?
You can use the GeekOBD APP to read the diagnostic codes, view freeze frame data, and monitor sensor outputs. Look for any unusual readings that could indicate a malfunctioning sensor.
What vehicles are most commonly affected by C0070?
Vehicles like the 2007-2014 Chevrolet Silverado, GMC Sierra, and other models from GM often experience this code. Check for recalls or TSBs related to the steering system.
How can I prevent C0070 from happening again?
Regular maintenance, including checking the steering system and recalibrating sensors after repairs, can help prevent future occurrences of C0070.
What is C0070?
DTC C0070 indicates a malfunction in the steering angle sensor (SAS), which is crucial for various vehicle systems, including stability control and advanced driver assistance systems. This code is prevalent in vehicles such as the 2007-2014 Chevrolet Silverado and GMC Sierra, where the SAS helps determine the direction of the steering wheel. When the SAS fails or sends inaccurate readings, it can lead to impaired handling and potential safety hazards. Drivers may notice issues such as erratic steering response, where the vehicle may feel loose or unresponsive. In severe cases, the stability control system can become disabled, significantly affecting the vehicle's safety during maneuvers. Furthermore, the check engine light may illuminate, prompting the need for a diagnostic evaluation. Regular maintenance, including alignment checks and sensor recalibration, can help prevent issues with the SAS. Ignoring this code can lead to further complications and costly repairs, especially if the steering system or related components are affected. Understanding the implications of DTC C0070 is crucial for maintaining vehicle performance and safety.
System: C - Chassis (ABS, Steering, Suspension)
Symptoms
Common symptoms when C0070 is present:
- The check engine light stays on constantly, indicating a persistent issue with the steering angle sensor.
- Drivers may feel erratic steering responses, especially during turns or at highway speeds, which can be alarming.
- Fuel economy may decrease by 10-15% due to the vehicle's stability control system being disabled, causing less efficient driving.
- In some cases, the vehicle may enter limp mode, reducing power to prevent further damage and ensure safety.
- Advanced features like lane departure warning may not function correctly, compromising safety during driving.
Possible Causes
Most common causes of C0070 (ordered by frequency):
- The most common cause is a faulty steering angle sensor, which can account for approximately 70% of C0070 occurrences, often due to wear and tear or electrical issues.
- Another frequent cause could be poor wiring connections or damaged harnesses leading to intermittent sensor failures, which can arise from environmental factors or accidents.
- Mechanical issues related to the steering column, such as misalignment or damage, can also trigger this code; regular inspections can prevent these issues.
- Less common but serious causes include faults in the electronic control unit (ECU) that interprets the sensor data, which may require specialized diagnostic tools.
- Rarely, software glitches or the need for recalibration after suspension work can result in C0070, highlighting the importance of proper vehicle servicing.
C0070 Repair Costs
Cost Breakdown by Repair Type
Steering Angle Sensor Replacement
Replacing the faulty steering angle sensor to restore proper function.
- Total: $150 - $300
- Success rate: 90%
Money-Saving Tips for C0070
- 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 C0070 Diagnosis Process
Follow these systematic steps to accurately diagnose C0070. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Initial visual inspection - Check for damaged wiring, loose connections, or corrosion, which can take about 5-10 minutes
Step 1: Initial visual inspection - Check for damaged wiring, loose connections, or corrosion, which can take about 5-10 minutes.
Step 2: Step 2: OBD2 scan with GeekOBD APP - Use the app to retrieve all codes and freeze frame data for context, typically taking 10-15 minutes
Step 2: OBD2 scan with GeekOBD APP - Use the app to retrieve all codes and freeze frame data for context, typically taking 10-15 minutes.
Step 3: Step 3: Component testing - Employ a multimeter or specialized steering angle sensor tester to confirm the sensor's functionality, which may take 20-30 minutes
Step 3: Component testing - Employ a multimeter or specialized steering angle sensor tester to confirm the sensor's functionality, which may take 20-30 minutes.
Step 4: Step 4: System function test - After repairs, verify the steering system's operation and clear the codes within 10-15 minutes
Step 4: System function test - After repairs, verify the steering system's operation and clear the codes within 10-15 minutes.
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to ensure the repair was successful, which may take 15-20 minutes
Step 5: Road test verification - Drive the vehicle under various conditions to ensure the repair was successful, which may take 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 2010 Chevrolet Silverado
Vehicle: 2010 Chevrolet Silverado LT, 85,000 miles
Problem: Customer reported check engine light on and erratic steering response.
Diagnosis: Diagnostic scan revealed C0070. Visual inspection showed damaged wiring to the steering angle sensor.
Solution: Replaced the steering angle sensor and repaired the wiring. Recalibrated the system using the GeekOBD APP.
Cost: $250 (sensor $150, labor $100)
Result: After repairs, the check engine light was cleared, and steering response was restored to normal.
Case Study 2: Diagnosing C0070 on 2013 GMC Sierra 1500
Vehicle: 2013 GMC Sierra 1500 SLT, 60,000 miles
Problem: Customer complained of stability control warning and poor steering feedback.
Diagnosis: Identified C0070 during an OBD2 scan. Testing confirmed the steering angle sensor was faulty.
Solution: Replaced the sensor and performed a system calibration with the GeekOBD APP.
Cost: $220 (sensor $120, labor $100)
Result: Stability control system functioned properly after repairs, and the warning light was resolved.