Toyota Sienna Service Manual: Starter relay
On-vehicle inspection
1. Inspect starter relay
(a) Using an ohmmeter, measure the resistance between each terminal.
Standard resistance 
If the result is not as specified, replace the starter relay assembly.
Installation
1. INSTALL STARTER ASSEMBLY
(a) Install the starter with the 2 bolts.
Torque: 37 N*m (380 kgf*cm, 26 ft.*lbf) for bolt
(b) Connect the starter connector.
(c) Install the terminal nut a ...
Ignition switch
Components
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Other materials:
Active head restraints
When the occupant’s lower back
presses against the seatback during
a rear-end collision, the head
restraint moves slightly forward
and upward to help reduce the
risk of whiplash on the seat occupant
Active head restraints
Even small forces applied to the seatback may cause the head rest ...
Precaution
1. INSPECTION PROCEDURE FOR VEHICLE INVOLVED
IN ACCIDENT
Perform the zero point calibration and sensitivity
check if any of the following conditions occur.
The occupant classification ECU is replaced.
Accessories (seatback tray and seat cover, etc.)
are installed.
...
Laser Sensor Power Source Circuit
DESCRIPTION
This circuit provides power to the laser sensor. The laser sensor emits radio
waves towards an object in
front and measures the distance and direction of the object by receiving the
beam reflections. Based on
the reflections, the sensor calculates the difference in speed between t ...
