Quick Answer
C0059 means: C0059 indicates a vehicle speed sensor range or performance issue.
Can I drive with C0059? It's crucial to address this issue promptly to avoid transmission problems.
Common Questions
What does C0059 mean and how does it affect my car?
The C0059 code indicates a problem with the vehicle speed sensor circuit. This can lead to inaccurate speed readings and cause erratic transmission behavior. If ignored, issues may escalate, impacting overall vehicle safety and performance.
What are the most common causes of C0059 and how much does it cost to fix?
Common causes include a faulty vehicle speed sensor and damaged wiring. Repair costs typically range from $150 to $300 for sensor replacement, while wiring repairs can cost between $100 and $200.
Can I drive my car with C0059 or should I stop immediately?
While you may be able to drive short distances, it's advisable to address the C0059 code quickly. Driving with this issue can lead to transmission problems and unsafe driving conditions.
How can I diagnose C0059 myself using GeekOBD APP?
To diagnose C0059 with the GeekOBD APP, connect the app to your vehicle's OBD2 port, retrieve the trouble codes, and check freeze-frame data to understand the context of the fault.
What vehicles are most commonly affected by C0059?
Vehicles like the 2010-2015 Chevrolet Equinox, 2011-2016 GMC Terrain, and many models from the GM family are commonly affected by the C0059 code.
How can I prevent C0059 from happening again?
Regular maintenance, including checking electrical connections and ensuring proper sensor installation, can help prevent the recurrence of the C0059 code.
What is C0059?
The diagnostic trouble code (DTC) C0059 indicates a problem with the vehicle speed sensor circuit, specifically related to range or performance issues. This code is commonly found in vehicles from manufacturers like Chevrolet, GMC, and others from the General Motors family. The vehicle speed sensor (VSS) plays a crucial role in monitoring the speed of the vehicle and sending that information to the Engine Control Module (ECM) or Powertrain Control Module (PCM). When the ECM detects that the VSS signal is outside the expected range, it triggers the C0059 code. Real-world implications of this code can include erratic speedometer readings, poor transmission performance, and issues with cruise control functionality. If left unresolved, these problems can lead to more significant vehicle performance issues and potentially unsafe driving conditions. Therefore, understanding the C0059 code is essential for maintaining optimum vehicle operation.
System: C - Chassis (ABS, Steering, Suspension)
Symptoms
Common symptoms when C0059 is present:
- Check engine light stays illuminated, indicating a problem that needs attention.
- Speedometer may become erratic, causing confusion about actual vehicle speed.
- Transmission may hesitate or shift hard, leading to a rough driving experience.
- Cruise control may become inoperative, limiting driving convenience on long trips.
- Fuel economy may suffer due to incorrect speed readings affecting engine performance.
Possible Causes
Most common causes of C0059 (ordered by frequency):
- The most common cause of C0059 is a faulty vehicle speed sensor, likely in 60% of cases. This can happen due to wear or electrical failure.
- A damaged wiring harness or poor connections can account for about 25% of the issues. Corrosion or fraying can lead to intermittent signals.
- Improperly installed or malfunctioning components in the transmission can also cause this code, making up roughly 10% of cases. Regular maintenance can help prevent this.
- Less commonly, issues with the ECM or PCM can trigger this DTC, though this is rare and requires advanced diagnostic tools to confirm.
- In rare cases, external factors like tire size changes can affect the vehicle speed sensor readings, resulting in the C0059 code.
C0059 Repair Costs
Cost Breakdown by Repair Type
Vehicle Speed Sensor Replacement
Replacing the faulty vehicle speed sensor with an OEM part.
- Total: $150 - $300
- Success rate: 90%
Wiring Repair or Replacement
Repairing or replacing damaged wiring and connectors related to the VSS circuit.
- Total: $100 - $200
- Success rate: 80%
ECM Reprogramming
Reprogramming or replacing the ECM if it's found to be faulty.
- Total: $500 - $1,500
- Success rate: 75%
Money-Saving Tips for C0059
- 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 C0059 Diagnosis Process
Follow these systematic steps to accurately diagnose C0059. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes)
Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes).
Step 2: Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze-frame data to understand the fault context (10-15 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: Step 3: Component testing - Use a multimeter or specific diagnostic tools to test the vehicle speed sensor and wiring (20-30 minutes)
Step 3: Component testing - Use a multimeter or specific diagnostic tools to test the vehicle speed sensor and wiring (20-30 minutes).
Step 4: Step 4: System function test - Verify proper operation after repairs and clear codes to ensure the issue is resolved (10-15 minutes)
Step 4: System function test - Verify proper operation after repairs and clear codes to ensure the issue is resolved (10-15 minutes).
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to confirm the success of the repair (15-20 minutes)
Step 5: Road test verification - Drive the vehicle under various conditions to confirm the success of the repair (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: Speed Sensor Replacement on 2013 Chevrolet Malibu
Vehicle: 2013 Chevrolet Malibu, 75,000 miles
Problem: Customer reported a constant check engine light and erratic speedometer readings.
Diagnosis: Diagnostic scan revealed C0059. Visual inspection showed a damaged speed sensor.
Solution: Replaced the vehicle speed sensor and cleared the codes.
Cost: $200 (sensor cost $150, labor $50)
Result: Check engine light turned off, and speedometer function was restored.
Case Study 2: Wiring Issues on 2015 GMC Sierra
Vehicle: 2015 GMC Sierra, 50,000 miles
Problem: Driver complained of harsh transmission shifts and check engine light.
Diagnosis: C0059 confirmed via OBD2 scan, with visual inspection showing corroded wiring.
Solution: Repaired wiring harness and ensured all connections were secure.
Cost: $150 (labor and materials)
Result: Transmission performance improved significantly, and the check engine light stayed off.