NO.3 WHEEL UNIT ID REGISTRATION CANNOT BE PERFORMED (TPMS WARNING LIGHT FLASHES) [DIRECT TIRE PRESSURE MONITORING SYSTEM (TPMS)]


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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 10 min or more.

3

Wheel unit ID registration cannot be performed (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.
•  Disconnect the negative battery terminal and connect 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.
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).
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.