Registration

TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: REGISTRATION

REGISTRATION

1. DESCRIPTION OF CODE REGISTRATION
It is necessary to register the transmitter ID in the tire pressure warning ECU when replacing the tire pressure warning valve and transmitter and/or tire pressure warning ECU.
Prepare all transmitter ID data before starting registration.
(a) Before registration
(1) If replacing the tire pressure warning ECU:

- Read the registered transmitter IDs that are stored in the old ECU using the Techstream and note them down.
- If reading stored transmitter IDs is impossible due to malfunctions of components such as the tire pressure warning antenna and receiver, remove the tires from the wheels and check the IDs located on the tire pressure warning valve and transmitters Service Precautions.
(2) If replacing the tire pressure warning valve and transmitter:

- Take a note of the 7-digit number (transmitter ID) written on the tire pressure warning valve and transmitter.





NOTE: The transmitter ID is written on the tire pressure warning valve and transmitter. It will be unable to be read after installing the tire pressure warning valve and transmitter on the tire and wheel. Therefore, take a note of the transmitter ID before installing the tire pressure warning valve and transmitter.

2. REGISTER TRANSMITTER ID
(a) Set the air pressure of all the wheels (including the grand spare tire) to the specified value Service Precautions.
(b) Make sure that the ignition switch is off.
(c) Connect the Techstream to the DLC3.
(d) Turn the ignition switch to the ON position.
(e) Turn the Techstream on.
(f) Enter the following menus: Chassis / Tire Pressure Monitor / Utility / ID Registration.
(g) Select the registration mode "MAIN Set".
HINT:
- Check that the tire pressure warning select switch is in "MAIN".
- When registering 2nd set, select the registration mode "2nd Set" after changing the tire pressure warning select switch to "2nd".

(h) Input the IDs (ID1 to ID5) using the Techstream and transmit them to the tire pressure warning ECU.
(i) The "ID Registration is complete" is displayed on the Techstream.
HINT:
- The previously registered IDs will be deleted from the memory when the registration is completed.
- The tire pressure warning light will continue to blink until the tire pressure warning ECU receives the input ID signals.
- Registration can be performed during initialization. However, the initialization will be cancelled when the registration is started.

(j) Confirmation of transmitter ID registration.
(1) Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
(2) Read the "ID Tire Inflation Pressure" values.
(3) Confirm that the data of tire pressure of all wheels (including the grand spare tire) are displayed on the Techstream.
NOTICE:
- It may take about 2 or 3 minutes to update the tire pressure data. If the values are not displayed after a few minutes, perform troubleshooting according to the inspection procedure for DTCs C2121/21 to C2125/25 C2121.
- If the IDs have not been registered, DTC C2171/71 or C2172/72 is stored in the tire pressure warning ECU after 3 minutes or more.
- If normal pressure values are displayed, the IDs have been registered correctly.
- If the tire pressure values are not displayed after a few minutes, the IDs may be incorrect or the system may have a malfunction.
- After all IDs are registered, DTC C2126/26 (Transmitter ID not Received in Main Mode) or C127/27 (Transmitter ID not Received in 2nd Mode) is stored in the tire pressure warning ECU and the tire pressure warning light blinks for 1 minute and then comes on. When the tire pressure warning ECU successfully receives radio waves from all the transistors whose IDs are stored in the ECU, DTC C2126/26 or C2127/27 is deleted and the tire pressure warning light goes off.