• TPMS warning light illuminated
• Inaccurate tire pressure readings
• Intermittent TPMS alerts
• Faulty TPMS sensor
• Damaged or corroded wiring
• Malfunctioning TPMS control module
TPMS: Tire Pressure Monitoring System
OBD-II: On-Board Diagnostics, Second Generation
• C0515
• C0516
This code means there is a problem with one of the car's sensors that helps it know if a tire is flat. It's like when your toy car's wheels don't spin right because something is stuck.
C0518 indicates an issue with the Tire Pressure Monitoring System (TPMS) sensor circuit.
The C0518 code is triggered when the TPMS detects a malfunction in the sensor circuit, which could be due to a faulty sensor, wiring issues, or a problem with the TPMS module itself.
• Check for any visible damage to the TPMS sensor.
• Inspect the wiring and connectors for corrosion or damage.
• Use a diagnostic tool to read TPMS data and identify faulty components.
• Replace the faulty TPMS sensor.
• Repair or replace damaged wiring.
• Reprogram or replace the TPMS control module if necessary.
• OBD-II scanner
• Multimeter
• TPMS reset tool
$100 - $300
Moderate
• Chevrolet Silverado
• GMC Sierra
• Cadillac Escalade
• Regularly check tire pressure manually.
• Inspect TPMS sensors during tire changes.
• Keep the TPMS system clean and free of debris.
Sensor Issue
• Check tire pressure manually if TPMS light is on.
• Visit a mechanic to diagnose the TPMS system.
• Avoid driving long distances with the TPMS warning light on.
TPMS sensors may be covered under the vehicle's basic warranty or extended warranty plans.
C0518 has been a common issue in vehicles equipped with early TPMS systems, often due to sensor wear or environmental factors.
Moderate – While not immediately dangerous, driving with incorrect tire pressure can lead to tire damage or reduced fuel efficiency.
Ensure your vehicle complies with local regulations regarding TPMS functionality to avoid fines and maintain safety.
• Vehicle parked on a flat surface.
• Tires at ambient temperature.
The TPMS sensors are located inside the tires, typically attached to the valve stem.
Q: Can I drive with the TPMS light on?
A: It's not recommended to drive for long distances with the TPMS light on, as it may indicate low tire pressure.
Q: How often should TPMS sensors be replaced?
A: TPMS sensors typically last 5 to 10 years, but should be checked during tire changes.
