Toyota Sienna Service Manual: For vehicles equipped with mobile communication systems
FOR VEHICLES EQUIPPED WITH MOBILE COMMUNICATION SYSTEMS
(a) Install the antenna far away from the ECU and sensors of the vehicle electronic systems as possible.
(b) Install an antenna feeder at least 20 cm (7.87 in.) away from the ECU and sensors of the vehicle electronic systems. For details about ECU and sensors locations, refer to the section on the applicable components.
(c) Keep the antenna and feeder separate from other wirings as much as possible. This will prevent signals sent from the communication equipment from affecting vehicle equipment and vice-versa.
(d) Check that the antenna and feeder are correctly adjusted.
(e) Do not install any high-powered mobile communication system.
Handling of hose clamps
HANDLING OF HOSE CLAMPS
(a) Before removing the hose, check the clamp position
so that it can be reinstalled in the same position.
(b) Replace any deformed or dented clamps with new
ones.
...
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
...
Other materials:
Terminals of ecu
1. Terminal of ECU
(*1): Models with dynamic laser cruise control
(*2): 2WD model
2. Terminal Inspection
(a) Disconnect the connector and measure the voltage
or resistance on the wire harness side.
HINT:
Voltage cannot be measured with the connector
connected to the skid control ECU ...
Terminals of ECU
1. CHECK DRIVER SIDE J/B ASSEMBLY (MULTIPLEX NETWORK BODY ECU)
Disconnect the B6, 1C, 1K and 1L J/B connectors.
Measure the voltage and resistance according to
the value(s) in the table below.
HINT:
If the result is not as specified, there may be a
malfunction on the w ...
Grocery bag hooks
The hooks are designed to hang things like a grocery bag.
Type A (front seatback)
(if equipped)
Type B (third seatback)
Type C (luggage compartment)
Type D (luggage compartment)
Pull the hook up.
WARNING
Type C: When not in use, keep the grocery ...
