Toyota Sienna Service Manual: Tire pressure warning ecu

Disposal

HINT: The tire pressure warning valve and transmitter is powered by a lithium battery. When disposing of the tire pressure warning valve and transmitter, remove the battery and dispose of it corre ...

Removal

NOTICE: Before removing the tire pressure warning ECU, read the registered transmitter IDs of all wheels and write them down to use for re-registration of transmitter IDs (See page TW-20). 1. DIS ...

Other materials:

Oxygen Sensor Heater Control Circuit
HINT: Sensor 2 refers to the sensor mounted behind the Three-Way Catalytic Converter (TWC) and located furthest from the engine assembly. DESCRIPTION Refer to DTC P0136 (See page ES-160). HINT: When any of these DTCs are set, the ECM enters fail-safe mode. The ECM turns off the Heated ...

Lubrication system
On-vehicle inspection 1. CHECK ENGINE OIL LEVEL (a) Warm up the engine, stop it and wait 5 minutes. The oil level should be between the dipstick's low level mark and full level mark. If the engine oil level is low, check for leakage and add oil up to the full level mark. NOTICE: D ...

When servicing full-time 4wd vehicles
The full-time 4WD SIENNA is equipped with the open center differential system. If incorrect preparations or test procedures are used, the test will not only be unsuccessful, but may be dangerous as well. Therefore, before beginning any such servicing or test, be sure to check the following ...