Quick Answer
C0687 means: C0687 indicates a problem with the steering angle sensor in the electronic stability control system.
Can I drive with C0687? Address immediately to ensure vehicle safety and performance.
Common Questions
What does C0687 mean and how does it affect my car?
C0687 indicates a fault in the steering angle sensor, which is crucial for your vehicle's stability control system. Ignoring it can lead to handling issues and compromised safety, especially in slippery conditions.
What are the most common causes of C0687 and how much does it cost to fix?
Common causes include a faulty steering angle sensor (about $150-$300 to replace), wiring issues ($50-$150), and calibration problems. The total repair cost varies based on the specific issue.
Can I drive my car with C0687 or should I stop immediately?
While you may still drive, it is not recommended as the vehicle's handling may be compromised. Immediate attention is advised to ensure safety.
How can I diagnose C0687 myself using GeekOBD APP?
You can use the GeekOBD APP to scan for DTCs, check the steering angle sensor readings, and monitor live data to identify irregularities in the ESC system.
What vehicles are most commonly affected by C0687?
Commonly affected vehicles include the 2015-2018 Chevrolet Silverado, GMC Sierra, and similar models with electronic stability control features.
How can I prevent C0687 from happening again?
Regular maintenance, such as checking wiring connections and ensuring the steering system is free from damage, can help prevent future C0687 occurrences.
What is C0687?
The diagnostic trouble code (DTC) C0687 signifies a malfunction within the electronic stability control (ESC) system, particularly related to the steering angle sensor. When this code triggers, it indicates that the vehicle’s computer has detected a fault with the sensor readings, which can affect the vehicle's stability and handling. This is especially critical in models like the 2015-2018 Chevrolet Silverado, where stability control is vital for safe driving, particularly during adverse weather conditions or sharp turns. Ignoring this code may lead to decreased vehicle performance and safety issues, as the stability control system may not function correctly. In practical terms, this can manifest as the vehicle's check engine light illuminating, with possible warnings displayed on the dashboard. If you find yourself experiencing issues such as difficulty maintaining control over your vehicle, especially in slippery conditions, it’s essential to address the issue promptly. Proper functioning of the steering angle sensor is crucial for the ESC system to accurately assess the vehicle's dynamics and provide necessary corrections. Regular diagnostics and timely repairs can prevent further complications, ensuring both safety and the longevity of your vehicle.
System: C - Chassis (ABS, Steering, Suspension)
Symptoms
Common symptoms when C0687 is present:
- The check engine light remains illuminated, signaling an issue with the vehicle's stability control system.
- Drivers may notice increased difficulty in steering response, particularly when trying to maneuver during sharp turns or in slippery conditions.
- Fuel economy might decrease by an estimated 5-10% due to the ESC system working harder to maintain control.
- The dashboard may display a stability control warning, indicating that the system is compromised.
- In extreme cases, the vehicle may exhibit erratic handling, making it crucial to seek diagnostics.
Possible Causes
Most common causes of C0687 (ordered by frequency):
- The most common cause is a faulty steering angle sensor, which accounts for approximately 60% of cases. This can happen due to wear, damage, or electrical issues.
- Another potential cause is wiring problems, such as frayed or corroded wires connected to the sensor, leading to inaccurate readings.
- Improper calibration of the steering angle sensor can also trigger C0687, often occurring after steering column repairs or replacement.
- Less common but serious causes include issues with the ESC module itself, which may require professional assessment and replacement.
- A rare cause might be software glitches in the vehicle’s control module, necessitating firmware updates to rectify the problem.
C0687 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: 85%
Wiring Repair
Repairing or replacing damaged wiring connected to the steering angle sensor.
- Total: $50 - $150
- Success rate: 70%
ESC Module Reset and Calibration
Resetting and recalibrating the ESC module after sensor replacement.
- Total: $100 - $200
- Success rate: 90%
Money-Saving Tips for C0687
- 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 C0687 Diagnosis Process
Follow these systematic steps to accurately diagnose C0687. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Perform an initial visual inspection of the steering angle sensor and associated wiring for any visible damage or corrosion (5-10 minutes)
Step 1: Perform an initial visual inspection of the steering angle sensor and associated wiring for any visible damage or corrosion (5-10 minutes).
Step 2: Step 2: Use the GeekOBD APP to conduct an OBD2 scan, retrieving all stored codes and freeze frame data for context, which takes about 10-15 minutes
Step 2: Use the GeekOBD APP to conduct an OBD2 scan, retrieving all stored codes and freeze frame data for context, which takes about 10-15 minutes.
Step 3: Step 3: Carry out component testing using a multimeter to check the voltage and signal output from the steering angle sensor (20-30 minutes)
Step 3: Carry out component testing using a multimeter to check the voltage and signal output from the steering angle sensor (20-30 minutes).
Step 4: Step 4: After repairs, run a system function test to verify that the ESC is operating correctly and clear any fault codes (10-15 minutes)
Step 4: After repairs, run a system function test to verify that the ESC is operating correctly and clear any fault codes (10-15 minutes).
Step 5: Step 5: Conduct a thorough road test under various driving conditions to ensure that the repairs were successful (15-20 minutes)
Step 5: Conduct a thorough road test under various driving conditions to ensure that the repairs were successful (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 2017 Chevrolet Silverado
Vehicle: 2017 Chevrolet Silverado 1500, 45,000 miles
Problem: Customer reported a persistent check engine light and stability control warning messages.
Diagnosis: Initial scanning revealed DTC C0687. Visual inspection showed a damaged steering angle sensor.
Solution: Replaced the steering angle sensor and recalibrated the ESC system.
Cost: $250 (sensor: $200, labor: $50)
Result: The check engine light was cleared, and the stability control system operated normally after repairs.
Case Study 2: Wiring Repair for C0687 on 2016 GMC Sierra
Vehicle: 2016 GMC Sierra 1500, 60,000 miles
Problem: Customer experienced erratic steering and stability control warnings.
Diagnosis: OBD scan confirmed C0687, and inspection found frayed wiring near the steering column.
Solution: Repaired the wiring and replaced connectors as needed.
Cost: $120 (labor: $70, parts: $50)
Result: Steering response improved, and stability control warnings were resolved.