Quick Answer
C0572 means: DTC C0572 indicates a malfunction in the vehicle speed sensor circuit.
Can I drive with C0572? Immediate attention is recommended to avoid further damage.
Common Questions
What does C0572 mean and how does it affect my car?
DTC C0572 indicates a malfunction in the vehicle speed sensor system, which can lead to inaccurate speed readings, erratic transmission behavior, and potential safety risks. It's essential to address this issue promptly to ensure your vehicle operates safely and efficiently.
What are the most common causes of C0572 and how much does it cost to fix?
Common causes of C0572 include a faulty vehicle speed sensor, damaged wiring, or issues with the ECM. Repair costs can range from $150 to $600 depending on the specific problem and solution.
Can I drive my car with C0572 or should I stop immediately?
While you may still be able to drive your car, it's not advisable to ignore the C0572 code. Driving with this issue can lead to unsafe driving conditions and further damage to the transmission or engine.
How can I diagnose C0572 myself using GeekOBD APP?
To diagnose C0572 with the GeekOBD APP, start by scanning for codes and reviewing freeze frame data. Check the vehicle speed sensor's voltage and signal output while driving to verify its operation.
What vehicles are most commonly affected by C0572?
DTC C0572 is commonly found in GM vehicles, particularly models like the Chevrolet Impala (2014-2019) and GMC Sierra (2014-2019). It’s important to be aware of any recalls or service bulletins related to this code.
How can I prevent C0572 from happening again?
Regular maintenance, including checking and cleaning electrical connections, monitoring transmission fluid levels, and replacing worn components, can help prevent the recurrence of DTC C0572.
What is C0572?
DTC C0572 is a diagnostic trouble code that indicates a malfunction in the vehicle speed sensor (VSS) or its circuit, particularly in General Motors (GM) vehicles such as the Chevrolet Impala (2014-2019) and GMC Sierra (2014-2019). When this code is triggered, it usually means that the Engine Control Module (ECM) is receiving incorrect or no signals from the VSS, which is crucial for various functions like speedometer readings, transmission shifting, and stability control. If the vehicle speed sensor fails, it can lead to serious driving issues, including erratic speedometer readings and shifting problems in automatic transmissions. In worst-case scenarios, the vehicle may enter 'limp mode' to protect itself, limiting speed and functionality. Understanding DTC C0572 is vital for vehicle owners, especially those with GM models, as ignoring this code could result in further damage and costly repairs. Knowing how to diagnose and address this issue can save you time and money in the long run.
System: C - Chassis (ABS, Steering, Suspension)
Symptoms
Common symptoms when C0572 is present:
- The check engine light remains illuminated, indicating a fault in the sensor system.
- Speedometer displays erratic or incorrect readings, causing confusion while driving.
- Transmission may shift harshly or unpredictably, leading to a rough driving experience.
- The vehicle may enter limp mode, restricting acceleration and overall performance.
- Fuel efficiency may decline due to improper shift points and engine management.
Possible Causes
Most common causes of C0572 (ordered by frequency):
- The most common cause of DTC C0572 is a faulty vehicle speed sensor, with a likelihood of about 60%. This can happen due to wear and tear over time.
- Another cause could be damaged wiring or connectors in the VSS circuit, which can lead to intermittent signals being sent to the ECM.
- A less common cause could be issues with the ECM itself, such as software glitches or failures, which might require reprogramming or replacement.
- In rare cases, a malfunctioning ABS module can contribute to this trouble code, as it also relies on speed sensor data for proper operation.
- Finally, low transmission fluid levels or a failing transmission might indirectly affect the performance of the VSS, leading to this code.
C0572 Repair Costs
Cost Breakdown by Repair Type
Replace Vehicle Speed Sensor
Replacing the faulty vehicle speed sensor is the most common repair for code C0572.
- Total: $150 - $300
- Success rate: 90%
Repair Wiring and Connectors
Repairing damaged wiring or connectors in the VSS circuit to restore proper signal transmission.
- Total: $100 - $200
- Success rate: 85%
ECM Reprogramming
Reprogramming or replacing the ECM if it is found to be faulty.
- Total: $300 - $600
- Success rate: 70%
Money-Saving Tips for C0572
- 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 C0572 Diagnosis Process
Follow these systematic steps to accurately diagnose C0572. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Initial visual inspection - Start with a thorough check for damaged wiring, loose connections, or corrosion around the vehicle speed sensor and its connectors (5-10 minutes)
Step 1: Initial visual inspection - Start with a thorough check for damaged wiring, loose connections, or corrosion around the vehicle speed sensor and its connectors (5-10 minutes).
Step 2: Step 2: OBD2 scan with GeekOBD APP - Use the app to retrieve all stored codes and freeze frame data to provide context for the C0572 code (10-15 minutes)
Step 2: OBD2 scan with GeekOBD APP - Use the app to retrieve all stored codes and freeze frame data to provide context for the C0572 code (10-15 minutes).
Step 3: Step 3: Component testing - Use a multimeter to test the voltage and signal output of the VSS while the vehicle is in motion (20-30 minutes)
Step 3: Component testing - Use a multimeter to test the voltage and signal output of the VSS while the vehicle is in motion (20-30 minutes).
Step 4: Step 4: System function test - After any repairs, verify that the speed sensor operates correctly and clear the codes (10-15 minutes)
Step 4: System function test - After any repairs, verify that the speed sensor operates correctly and clear the codes (10-15 minutes).
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to ensure that the issue is resolved and all systems are functioning properly (15-20 minutes)
Step 5: Road test verification - Drive the vehicle under various conditions to ensure that the issue is resolved and all systems are functioning properly (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: 2015 Chevrolet Impala - Speedometer Issues
Vehicle: 2015 Chevrolet Impala, 75,000 miles
Problem: The owner reported that the speedometer fluctuated wildly and the check engine light was on.
Diagnosis: After scanning with GeekOBD APP, DTC C0572 was confirmed. A visual inspection revealed a damaged speed sensor wire.
Solution: The damaged wire was repaired, and the vehicle speed sensor was replaced.
Cost: $250 (parts and labor)
Result: The speedometer functioned correctly after repairs, and the check engine light was cleared.
Case Study 2: 2017 GMC Sierra - Transmission Shifting Problems
Vehicle: 2017 GMC Sierra, 50,000 miles
Problem: Customer complained of rough shifting and a persistent check engine light.
Diagnosis: DTC C0572 was found during diagnostics; the vehicle speed sensor was tested and confirmed faulty.
Solution: Replaced the vehicle speed sensor and performed a system check.
Cost: $200 (sensor replacement)
Result: Shifting issues were resolved, and the vehicle performed smoothly post-repair.