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Home >> Mazda >> 2021 >> 3 Base >> Repair and Diagnosis >> Suspension >> Wheels & Tire System >> Symptom Troubleshooting - TPMS >> TPMS Warning Light Illuminates >> Notes
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TPMS Warning Light Illuminates: Notes

CAUTION:
  • The tire pressure cannot be measured accurately after driving for a long period due to the internal temperature and pressure. Stop the vehicle for approx. 1 hour and then perform the tire pressure measurement and adjustment.
  • Use a high accuracy digital gauge for measurement of the tire pressure.
NOTE:
  • If the DTC clearing procedure is implemented, the TPMS warning light turns off.
  • The snapshot (temperature and pressure) stored when the TPMS warning light is turned on and off can be verified by operating the M-MDS.
TPMS WARNING LIGHT ILLUMINATES (DIRECT TIRE PRESSURE MONITORING SYSTEM) DESCRIPTION AND POSSIBLE CAUSE

Troubleshooting item TPMS warning light illuminates
Description
  • TPMS warning light illuminates continuously
  • TPMS warning light illuminates after engine start and turns off after driving for a period of time
Possible cause
  • Tire pressure is lower than the specification. (Such as loss of air pressure due to puncture.)
  • The tire pressure decreases when the internal temperature of the tire is low. (The tire pressure, which was slightly below the standard while the tire was cold, exceeded the standard as the air expanded due to the heat generation during driving, causing the TPMS warning light to turn off temporarily.)
  • TPMS warning light circuit malfunction in the instrument cluster.
System wiring diagram
  • Not applicable
Connector diagram
  • Not applicable