Initializing Tire Pressure Monitor System
CAUTION:
Set tire pressure within the specified range before initializing. DO NOT push the reset switch without adjusting tire inflation pressure of all 4 tires. Otherwise, the low tire pressure warning light may not come on even if the tire pressure is low, or it may come on when the tire inflation pressure is actually normal. If you push the reset switch while the vehicle is moving, initialization is not performed.
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. See TIRE PRESSURE SENSOR REGISTRATION .
NOTE:
When initializing the system, the current tire condition is stored as a standard.
NOTE:
Perform the tire pressure adjustment after the vehicle has sufficiently cooled down. If it hasn't sufficiently cooled, increase the air pressure in the tires approximately 3-4psi (20-30kPa)
NOTE:
The initialization mode can be terminated by making a short circuit between terminals No. 4 and 13 of the DLC3 connector (located under left side of instrument panel).
During initialization, the tire pressure sensor measures the inflation pressure of the tires, and registers the signals that are transmitted into the tire pressure monitor ECU at a frequency of one per minute. The initialization process is completed when the signals from the 4 tires have been received.
The initialization process is canceled if the ignition switch is turned to OFF position prior to the completion of initialization. To restart initialization, the tire pressure warning reset switch must be pressed again.
- Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
- With the vehicle stopped and parking brake applied, turn the ignition switch ON.
- Press and hold the tire pressure warning reset switch until the tire pressure warning light blinks 3 times at one-second intervals. See Fig 1.NOTE: Initialization is normally completed within 5 to 6 minutes. If initialization has not been completed successfully, DTC C2177/77 is set after the vehicle is driven for 20 minutes or more.
- Turn the ignition switch OFF.
- Connect the Techstream to the DLC3. Turn the ignition switch ON, and turn the Techstream ON.
- Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
- Confirm that the expected tire pressure data of all tires is displayed on the Techstream screen.
NOTE:
Initialization can be terminated by connecting terminals 13 (TC) and 4 (CG) of the DLC3. See Fig 2.