WHEEL UNIT ID REGISTRATION CANNOT BE PERFORMED [DIRECT TIRE PRESSURE MONITORING SYSTEM (TPMS)]

id020305000500

Caution

• Activate the wheel unit ID registration mode using the M-MDS, and perform the following steps if the TPMS warning light does not turn off after driving at 25 km/h {16 mph} or more for 8 min or more.

Troubleshooting item

Wheel unit ID registration cannot be performed

Description

•  TPMS warning light flashes

Possible cause

•  New wheel unit malfunction (caused when installing to wheel).

•  Any malfunction on an old wheel unit which has not been replaced.

Troubleshooting item	Wheel unit ID registration cannot be performed
Description	• TPMS warning light flashes
Possible cause	• New wheel unit malfunction (caused when installing to wheel). • Any malfunction on an old wheel unit which has not been replaced.

Diagnostic Procedure

STEP

INSPECTION

ACTION

1

PERFORM WHEEL UNIT ID REGISTRATION

•  Connect the M-MDS to the DLC-2.

•  Display the wheel unit ID registration condition (ID and tire pressure table) using the M-MDS.
(See PID/DATA MONITOR INSPECTION [INSTRUMENT CLUSTER (TPMS)].)

•  Temporarily remove the battery and reinstall it immediately.

Note

•  If the battery is removed, the tire pressure data for WU1_P to WU4_P stored in the instrument cluster is reset.

•  Tire pressure is 0 kPa {0 kgf/cm², 0 psi}when it is displayed again using the M-MDS.

•  Set the tire pressure for the four wheels separately.
(See TIRE PRESSURE ADJUSTMENT.)

•  Perform the wheel unit ID registration.
(See WHEEL UNIT ID REGISTRATION.)

•  Can the ID be registered?

Yes

Symptom troubleshooting completed.

Adjust the tire pressure on four wheels, and then return the vehicle to the customer.

(See TIRE PRESSURE ADJUSTMENT.)

(See WHEEL AND TIRE SPECIFICATION.)

No

Go to the next step.

2

IDENTIFY UNREGISTERED WHEEL UNIT

•  Identify the malfunctioning wheel unit.
(See MALFUNCTIONING WHEEL UNIT IDENTIFICATION [INSTRUMENT CLUSTER (TPMS)].)

•  Is the wheel unit for which the ID could not be registered a new wheel unit?

Yes

Replace with a new wheel unit, then go to the next step.

(See WHEEL UNIT REMOVAL/INSTALLATION.)

No

Replace the old wheel unit, then go to the next step (any malfunction on an old wheel unit which has not been replaced).

(See WHEEL UNIT REMOVAL/INSTALLATION.)

3

PERFORM WHEEL UNIT ID REGISTRATION

•  Perform the wheel unit ID registration again.
(See WHEEL UNIT ID REGISTRATION.)

•  Can the ID be registered?

Yes

Symptom troubleshooting completed.

No

Verify the symptom troubleshooting again and return to Step 1, if the malfunction recurs.

STEP	INSPECTION		ACTION
1	PERFORM WHEEL UNIT ID REGISTRATION • Connect the M-MDS to the DLC-2. • Display the wheel unit ID registration condition (ID and tire pressure table) using the M-MDS. (See PID/DATA MONITOR INSPECTION [INSTRUMENT CLUSTER (TPMS)].) • Temporarily remove the battery and reinstall it immediately. Note • If the battery is removed, the tire pressure data for WU1_P to WU4_P stored in the instrument cluster is reset. • Tire pressure is 0 kPa {0 kgf/cm², 0 psi}when it is displayed again using the M-MDS. • Set the tire pressure for the four wheels separately. (See TIRE PRESSURE ADJUSTMENT.) • Perform the wheel unit ID registration. (See WHEEL UNIT ID REGISTRATION.) • Can the ID be registered?	Yes	Symptom troubleshooting completed. Adjust the tire pressure on four wheels, and then return the vehicle to the customer. (See TIRE PRESSURE ADJUSTMENT.) (See WHEEL AND TIRE SPECIFICATION.)
1		No	Go to the next step.
2	IDENTIFY UNREGISTERED WHEEL UNIT • Identify the malfunctioning wheel unit. (See MALFUNCTIONING WHEEL UNIT IDENTIFICATION [INSTRUMENT CLUSTER (TPMS)].) • Is the wheel unit for which the ID could not be registered a new wheel unit?	Yes	Replace with a new wheel unit, then go to the next step. (See WHEEL UNIT REMOVAL/INSTALLATION.)
2		No	Replace the old wheel unit, then go to the next step (any malfunction on an old wheel unit which has not been replaced). (See WHEEL UNIT REMOVAL/INSTALLATION.)
3	PERFORM WHEEL UNIT ID REGISTRATION • Perform the wheel unit ID registration again. (See WHEEL UNIT ID REGISTRATION.) • Can the ID be registered?	Yes	Symptom troubleshooting completed.
3		No	Verify the symptom troubleshooting again and return to Step 1, if the malfunction recurs.