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Home >> Toyota >> 2006 >> Prius L4-1.5L (1NZ-FXE) Hybrid >> Repair and Diagnosis >> Maintenance >> Wheels and Tires >> Tire Monitoring System >> Testing and Inspection >> Programming and Relearning >> Initialization
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Initialization

INITIALIZATION
1. INITIALIZATION

NOTICE:
- Perform the tire pressure warning system initialization after the transmitter ID registration has been completed.
- The initialization is necessary when one of the following situations applies:
- Tire pressure warning ECU is replaced.
- Tires are replaced with those of different pressures.
- Tire pressure warning valve and transmitters are replaced.
- Vehicle is newly delivered.

a. Set the tire air pressure for the 4 wheels to the specified value.

Standard Pressure:





b. Keep the tire pressure warning reset switch pressed for 3 seconds or more with the power switch ON (IG).





c. Check that the tire pressure warning light blinks 3 times at 1 second intervals.

HINT: The initialization is complete when the tire pressure warning ECU has received signals from all of the wheels.





d. Wait for 2 or 3 minutes with the power switch ON (IG).

NOTICE:
- The initialization is normally completed within 2 to 3 minutes.
- If the initialization has not been completed successfully, DTC C2177/77 is set approximately 20 minutes after driving starts.
- The initialization can be terminated by making a short circuit between terminals TC and CG of the DLC3 connector.

e. Confirm that the initialization has been completed using the intelligent tester.
1 Change the mode to test mode using intelligent tester and check that test DTCs have been stored.
- The test DTCs will not be indicated until the system initialization is complete.
- After the initialization has been completed successfully, the test DTCs (C2181/81 to C2191/91) are indicated.

NOTICE: The following operations can be used instead of above procedure:
1 Turn the power switch from OFF to ON (IG).
2 Monitor the tire pressure values of all the wheels using intelligent tester.
3 If the tire pressure values cannot be displayed on the intelligent tester screen, the initialization has failed.
4 It takes 2 to 3 minutes to display the tire pressure data.

HINT: In winter, as the tire pressure may decrease depending on the ambient temperature, increase the tire pressure by 20 kPa (0.2 kgf/cm2, 2.9 psi) to 30 kPa (0.3 kgf/cm2, 4.3 psi) above the specified value after confirmation that the initialization has been completed.

f. Initialization is completed.

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