Inspection Procedure 2: The TPMS warning lamp flash for about 1 minute and then remain illuminated.

caution

If there is any problem in the CAN bus lines, an incorrect diagnosis code may be set. Prior to this diagnosis, diagnose the CAN bus lines (Refer to GROUP 54C - CAN Bus Diagnostics Table).
Whenever ECU is replaced, ensure that the CAN bus lines are normal.

The TPMS warning lamp will flash for about 1 minute and then remain illuminated when a fault has occurred in the TPMS.
The TPMS warning lamp may also flash for about 1 minute and then remain illuminated when a fault has occurred in the TPMS warning lamp signal circuit (including open circuit and shorted circuit).

If any TPMS diagnosis codes are set, carry out the relevant troubleshooting.
This may be caused by faults in the CAN bus line, combination meter or ETACS-ECU <Vehicles without KOS> or KOS-ECU.

DIAGNOSIS PROCEDURE

Use M.U.T.-III to diagnose the CAN bus lines.

	Go to Step 2.

	Repair the CAN bus lines (Refer to GROUP 54C - CAN Bus Diagnostics Table). Then go to Step 2.

(1)Turn the ignition switch (engine starting switch) from the "LOCK" (OFF) to "ON" position.

(2)Check whether any TPMS diagnosis code is set.

	Carry out the relevant TPMS troubleshooting (Refer to ).

	Go to Step 3.

Check that the combination meter warning lamps and indicators other than TPMS warning lamp illuminate normally.

	Replace the KOS-ECU (Refer to GROUP 42B - KOS-ECU ) <Vehicles without KOS> or ETACS-ECU (Refer to GROUP 54A - ETACS-ECU ) and register the ID codes. Then go to Step 4.

	Replace the combination meter assembly (Refer to GROUP 54A - Combination Meter Assembly). Then go to Step 4.

	The procedure is complete.

	Repeat the troubleshooting from Step 1.