NO.1 TPMS WARNING LIGHT ILLUMINATES [INDIRECT TIRE PRESSURE MONITORING SYSTEM (TPMS) (WITH TPMS SET SWITCH)]

id020308101000

Caution
•  The Tire Pressure Monitoring System (TPMS) warning light illuminates according to the decrease in a tire air pressure (TPMS is normal).
•  The No.1 TPMS WARNING LIGHT ILLUMINATES the diagnostic procedure if the TPMS warning light illuminated due to a decrease in a tire pressure although the TPMS is normal.

Possible malfunction

•  The air pressure of a tire has decreased. (TPMS is normal)

Diagnostic Procedure

Step

Inspection

Results

Action
1
TIRE PRESSURE INSPECTION
•  Inspect tire pressures while the tires are cold.
•  Are the tire pressures at the specification?
Yes
Go to the next step.
No
Adjust the tire pressures to the specification while the tires are cold.
2
TIRE PRESSURE MONITORING SYSTEM INITIALIZATION
•  Perform tire pressure monitoring system initialization.
•  Connect the M-MDS to DLC-2.
•  After the vehicle is identified, select the following items from the initial screen of the IDS.
1.  Select "Chassis"
2.  Select "ABS/DSC"
3.  Select "TPMS Reset"
•  Was the tire pressure monitoring system initialization performed?
Yes
Go to the next step.
No
Perform the tire pressure monitoring system initialization.
3
TPMS WARNING LIGHT VERIFICATION
•  Drive the vehicle for several minutes after the TPMS warning light turns off.
•  Does the TPMS warning light illuminate?
Yes
Inspect the tires and wheels for air leakage.
No
The tire pressure monitoring system is normal.