Tire Pressure Sensor Registration

NOTE: When a tire pressure sensor and/or tire pressure monitor ECU are replaced, the sensor ID must be memorized (registered) by the tire pressure monitor ECU prior to system initialization. To perform this procedure, a Toyota Techstream must be used. It is not necessary to register the sensor ID(s) when only tire rotation is performed.

NOTE: Before beginning registration process on vehicles where tire pressure sensors have not been replaced, retrieve sensor transmitter ID(s) using Techstream or by reading the ID on the tire pressure sensor. If sensor is being replaced with a new one, make a note of the 7-digit number (transmitter ID) before installation, as it cannot be seen after sensor is installed. See Figure.

Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
With the ignition switch OFF, connect the Techstream to the DLC3.
Turn the ignition switch to ON position.
Enter the following menus: Chassis / Tire Pressure Monitor / Utility / ID Registration / Tire Number Registration.
Perform the procedures displayed on the Techstream.
NOTE: If this step is not completed within 300 seconds, Registration mode will be canceled.
Confirmation of transmitter ID registration:
1. Enter the Techstream menu items in this order: Chassis / Tire Pressure Monitor / Data List.
2. Confirm that the expected tire pressures of all tires are displayed on the screen.
NOTE: It may take a few minutes until the values are displayed. If the values are not displayed after a few minutes, perform troubleshooting according to the inspection procedure for DTCs C2121/21 to C2124/24 (C2125/25: w/ Full Size Spare Tire). If the transmitter IDs have not been registered, DTC C2171/71 is stored in the tire pressure warning ECU and receiver after 3 minutes or more. After all transmitter IDs are registered, DTC C2126/26 is stored in the tire pressure warning ECU and receiver and the tire pressure warning light blinks for 1 minute and then illuminates. When the tire pressure warning ECU and receiver successfully receives signals from all the transmitters whose IDs are stored in the ECU, DTC C2126/26 is cleared and the tire pressure warning light goes off.