Initializing Tire Pressure Monitor System
NOTE:
The system will need to be initialized when tires are rotated; tires are replaced with tires of different pressures; tire pressure sensor and/or tire pressure monitor ECU are replaced; or when a new vehicle is delivered. Set tire pressure within the specified range before initializing. When a tire pressure sensor and/or tire pressure monitor ECU are replaced, the sensor ID must be memorized by the tire pressure monitor ECU prior to system initialization. See TIRE PRESSURE SENSOR REGISTRATION .
During initialization, the tire pressure monitor valve sub-assembly 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 (including the spare tire) has been received.
- Set the tire pressure of all wheels to pressure specified on the tire and loading information label.NOTE: 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 3-4 psi (20-30 kPa) in addition to the specified value.
- With the vehicle stopped and parking brake applied, turn the engine switch on (IG).
- Press and hold the tire pressure warning reset switch (satellite switch) until the tire pressure warning light blinks 3 times at one-second intervals. See Fig 1 or Fig 2.NOTE: Initialization is usually completed in 2-3 minutes. When the initialization is completed incorrectly, DTC C2177/77 is memorized after driving the vehicle about 20 minutes or more.NOTE: The initialization can be terminated by making a short circuit between terminals No. 4 (CG) and 13 (TC) of the DLC3 connector.
- To confirm that initialization is complete using the intelligent tester, check that the "TIREPRESS" values are displayed on the intelligent tester screen.