Initialization
INITIALIZATION1. DESCRIPTION OF INITIALIZATION
(a) Perform initialization in the following cases:
- Before delivery of a new vehicle.
- After replacement of the tire pressure warning ECU*.
- After replacement of the tire pressure warning valve and transmitter.
- Specified tire pressure changes depending on the size or type of the tire.
*: Perform initialization after the transmitter ID registration is completed.
(b) Before initialization
(1) Set the air pressure of all tires to the specified value.
Cold Tire Inflation Pressure:
NOTICE: Perform the tire pressure adjustment after the vehicle has sufficiently cooled down. If the vehicle is not sufficiently cooled down, increase the air pressure by 20 to 30 kPa (0.2 to 0.3 kgf/cm2, 2.9 to 4.3 psi) above the specified value.
2. INITIALIZATION PROCEDURE
(a) Make sure that the ignition switch is off.
(b) Connect the intelligent tester to the DLC3.
(c) Turn the ignition switch to the ON position.
(d) Select "TIREPRESS" by following the prompts displayed on the intelligent tester.
(e) Press the tire pressure warning reset switch within 30 seconds after turning the ignition switch ON. Keep the tire pressure warning reset switch pressed for 3 seconds or more with the ignition switch ON.
(f) Check that the tire pressure warning light blinks 3 times (1 second ON, 1 second OFF).
HINT: Initialization will be completed if signals are received from all the wheels.
(g) Wait for 5 to 6 minutes with the ignition switch ON.
NOTICE:
- The initialization is normally completed within 5 to 6 minutes.
- If the initialization has not been completed successfully, DTC C2177/77 is set after the vehicle is driven for 20 minutes or more.
- The initialization can be terminated by connecting terminals TC and CG of the DLC3 connector.
3. CHECK THAT INITIALIZATION HAS BEEN COMPLETED
(a) Confirm that the data of tire pressure of all tires are displayed on the intelligent tester screen.
TIRE PRESSURE (Part 1):
TIRE PRESSURE (Part 2):
HINT: *: It may take about 5 to 6 minutes until the values are displayed. If the values are not displayed after several minutes, perform troubleshooting according to the inspection procedure for DTCs C2121/21 to C2124/24.
NOTICE: The following operations can be used instead of above procedure:
1. Turn the ignition switch from OFF to ON.
2. Monitor the tire pressure values of all the wheels using the intelligent tester.
3. If the tire pressure values cannot be displayed on the intelligent tester screen, the initialization has failed.
4. It takes about 5 to 6 minutes to display the tire pressure data.