TPMS WARNING LAMP CHECK



1.Check that the TPMS warning lamp illuminates for approximately 3 seconds when the ignition switch is turned to the "ON" position.
2.Check that it illuminates for approximately three seconds and then goes out (If the warning lamp does not turn off and stays on, perform troubleshooting for TPMS Inspection Procedure No.1. Refer to .) (If the warning lamp does not turn off and flashes, perform troubleshooting for TPMS Inspection Procedure No.2. Refer to ).
3.If the TPMS fails or the tyre pressure is low, ETACS-ECU <vehicles without Keyless Operation System> or KOS&OSS-ECU <vehicles with Keyless Operation System> warns the driver of that state by the TPMS warning lamp and the TPMS information display in the combination meter.

WARNING AND WARNING INDICATOR LIST
Item
Display content
State
Warning operation
Warning cancellation condition (when any of the condition met)
TPMS information display
TPMS warning lamp
TPMS warning lamp bulb open circuit check
Not displayed
The power supply mode is other than OFF ON.
-
Illuminates for 3 seconds.
3 seconds have passed after the TPMS warning lamp is lit.
Tyre pressure alarm


The received tyre pressure value is under the alarm ON threshold value.
Symbol is displayed.
Illuminates.
The received tyre pressure value is over the alarm OFF threshold value.
Low tyre inflation pressure warning threshold value reset
Not displayed
Low tyre inflation pressure warning threshold value reset is activated.
-
Flashes slowly.
When a signal from each tyre has been received and low tyre inflation pressure warning threshold value reset has been completed.
TPMS failure warning
ID not stored


The TPMS transmitter ID is not registered in the ETACS-ECU.
Symbol is displayed.
Flashes*
ID is registered normally.
Defective EEPROM
Abnormality of data in the EEPROM of the ETACS-ECU is detected.
Data in the EEPROM of the ETACS-ECU <vehicles without keyless operation system> or KOS&OSS-ECU <vehicles with Keyless Operation System> is checked to be normal.
Problem in signal reception
The signals from TPMS transmitters cannot be received while driving for about 10 minutes.
The signal from the TPMS transmitter that was warned is received.
Defective sensor
The sensor failure signal is received from the TPMS transmitter.
A normal signal is received from the TPMS transmitter that was warned.
TPMS failure warning
ID not stored


The TPMS transmitter ID is not registered in the ETACS-ECU.
Symbol is displayed.
Flashes*
ID is registered normally.
Defective EEPROM
Abnormality of data in the EEPROM of the ETACS-ECU is detected.
Data in the EEPROM of the ETACS-ECU <vehicles without keyless operation system> or KOS&OSS-ECU <vehicles with Keyless Operation System> is checked to be normal.
Problem in signal reception
The signals from TPMS transmitters cannot be received while driving for about 20 minutes.
The signal from the TPMS transmitter that was warned is received.