NO.2 TPMS WARNING LIGHT (LOW PRESSURE WARNING) ILLUMINATES AFTER ENGINE START AND TURNS OFF AFTER DRIVING FOR PERIOD OF TIME [DIRECT TIRE PRESSURE MONITORING SYSTEM (TPMS)]

id020305800600

Caution
•  The tire pressure cannot be measured accurately after driving for a long period due to increased 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
•  The tire pressure normally decreases by approx. 7 kPa {0.07 kgf/cm2, 1.02 psi}per month even if the tire is normal.
•  The snapshot (temperature and pressure) stored when the TPMS warning light is turned on and off can be verified by operating the M-MDS.

2

TPMS warning light (low pressure warning) illuminates after engine start and turns off after driving for a period of time
POSSIBLE CAUSE
•  The tire pressure decreases (approaches value to illuminate TPMS warning light) when the internal temperature of the tire is low.

Diagnostic procedure

STEP

INSPECTION

ACTION
1
INSPECT TIRE
•  Visually inspect the tire.
•  Is there any foreign object adhering to the tire?
Yes
Remove any foreign object.
Replace the tire if necessary, then go to the next step.
No
Go to the next step.
2
INSPECT TIRE PRESSURE
•  Measure the tire pressure when the tires are cold.
•  Has the tire pressure decreased (approaches value to illuminate TPMS warning light)?
Yes
Adjust the tire pressure to the specification when the tires are cold, then go to the next step.
No
Go to the next step.
3
VERIFY MALFUNCTION
•  Is the malfunction corrected?
Yes
Symptom troubleshooting completed.
No
Verify the symptom troubleshooting again and return to Step 1, if the malfunction recurs.