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

id020307000505

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.

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.
•  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.
•  Perform the 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.
No
Go to the next step.
2
IDENTIFY UNREGISTERED WHEEL UNIT
•  Identify the malfunctioning wheel unit.
•  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 Step 4.
(See WHEEL UNIT REMOVAL/INSTALLATION [DIRECT TIRE PRESSURE MONITORING SYSTEM (TPMS) (WITHOUT TPMS SET SWITCH)].)
No
Go to the next step.
3
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 [DIRECT TIRE PRESSURE MONITORING SYSTEM (TPMS) (WITHOUT TPMS SET SWITCH)].)
4
PERFORM WHEEL UNIT ID REGISTRATION
•  Perform the wheel unit ID registration again.
•  Can the ID be registered?
Yes
Symptom troubleshooting completed.
No
Verify the symptom troubleshooting again and return to Step 1, if the malfunction recurs.