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:
Diagnosis system
1. CHECK BATTERY VOLTAGE
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge the battery before
proceeding.
2. CHECK DLC3
(a) The ECU uses the ISO 15765-4 for communication
protocol. The terminal arrangement of the DLC3
complies with SAE J1962 and matches the ISO
15765-4 f ...
Ignition Switch Circuit
DESCRIPTION
When the ignition switch is turned to the ON position, battery positive
voltage is applied to terminal IG of
the ECU. When battery positive voltage is applied to terminal IG of the ECU
while the theft deterrent
system is operating, the warning stops.
WIRING DIAGRAM
INSPECTIO ...
Heated oxygen sensor (for 2wd)
Components
Removal
1. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the
cable from the nagative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.
2. REMOVE HEATED OXYGEN SENSOR (for Bank ...
