Toyota Sienna Service Manual: Check that initialization has been completed
(a) Confirm that the data of tire pressure of all tires are displayed on the intelligent tester screen.
| Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
| TIREPRESS1 | ID1 tire inflation pressure (Absolute pressure) / min.: 100 kPa (1 kgf/cm2, 14 psi) max.: 449.35 kPa (4.5 kgf/cm2, 63 psi) | Actual tire inflation pressure | If 100 kPa (1 kgf/cm2, 14 psi) for absolute pressure is displayed, the data has not been received.* |
| TIREPRESS2 | ID2 tire inflation pressure (Absolute pressure) / min.: 100 kPa (1 kgf/cm2, 14 psi) max.: 449.35 kPa (4.5 kgf/cm2, 63 psi) | Actual tire inflation pressure | If 100 kPa (1 kgf/cm2, 14 psi) for absolute pressure is displayed, the data has not been received.* |
| TIREPRESS3 | ID3 tire inflation pressure (Absolute pressure) / min.: 100 kPa (1 kgf/cm2, 14 psi) max.: 449.35 kPa (4.5 kgf/cm2, 63 psi) | Actual tire inflation pressure | If 100 kPa (1 kgf/cm2, 14 psi) for absolute pressure is displayed, the data has not been received.* |
| TIREPRESS4 | ID4 tire inflation pressure (Absolute pressure) / min.: 100 kPa (1 kgf/cm2, 14 psi) max.: 449.35 kPa (4.5 kgf/cm2, 63 psi) | Actual tire inflation pressure | If 100 kPa (1 kgf/cm2, 14 psi) for absolute pressure is displayed, the data has not been received.* |
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 (See page TW-42).
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.
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 followi ...
Other materials:
Fail-safe chart
If any of the following DTCs are set, the ECM enters fail-safe
mode to allow the vehicle to be driven temporarily.
HINT:
*1: The vehicle can be driven slowly when the accelerator
pedal is depressed firmly and slowly. If the accelerator
pedal is depressed quickly, the vehicle may ...
Terminals of ECU
1. TELEVISION CAMERA ASSEMBLY
Disconnect the T10 camera connector
Measure the voltage and resistance of each
terminal of the wire harness side connector.
If the result is not as specified, there may be a
malfunction on the wire harness side.
Reconnect the T10 ...
Emergency Stop Assistant
Concept
If the driver is no longer fit to drive, the system
helps to safely bring the vehicle to a standstill.
General information
The emergency stop function is not triggered
automatically. The emergency stop function can
only be triggered manually by the occupants.
When the system is activated, t ...
