Training Videos
Downloads
FAQSTPMS stands for Tire Pressure Monitoring System. It is an electronic system that monitors the air pressure inside your vehicle's tires and alerts you if the pressure drops dangerously low.
There are two main types of TPMS:
· Direct TPMS: Uses physical, battery-powered pressure sensors mounted inside each tire that send real-time pressure data directly to the vehicle's computer.
· Indirect TPMS: Relies on your car's Anti-lock Braking System (ABS) wheel speed sensors. An under-inflated tire has a smaller diameter and spins faster than a properly inflated one. The computer detects this difference and triggers a warning.
No. In the United States, federal standards require TPMS to warn drivers only when a tire is under-inflated by 25% or more below the manufacturer’s recommendation. It will not warn you if your tires are over-inflated.
TroubleshootingPossible Causes:
Sensor battery depleted
Wrong frequency or incompatible sensor model
Sensor not properly installed or damaged
Solutions:
Verify sensor frequency (e.g., 315 MHz or 433 MHz)
Replace sensor if battery is dead (non-serviceable)
Reinstall or replace with compatible TPMS sensor
Possible Causes:
Sensor not programmed or paired with vehicle ECU
Incorrect vehicle protocol used during programming
ECU requires a reset/relearn process
Solutions:
Program sensor with vehicle-specific data
Perform TPMS relearn procedure (static, OBD, or auto-relearn depending on vehicle)
Confirm correct torque during installation
Possible Causes:
Sensor calibration issue
Physical damage to sensor or valve stem
Environmental interference (temperature changes, RF interference)
Solutions:
Verify with a calibrated manual gauge
Replace faulty sensor/valve
Recheck torque on valve stem nut
Software Updates
Compatibility