1. INSPECT AIR FUEL RATIO SENSOR

(a) Measure the resistance of the sensor.
Standard resistance
If the resistance is not as specified, replace the sensor.
Removal
InstallationPower easy access system
The seat is automatically adjusted to allow the driver to enter and exit
the vehicle easily.
When all of the following have
been performed, the driver’s seat
is automatically adjusted to a
position that allows driver to enter
and exit the vehicle easily.
The shift lever has been sh ...
Enter test mode
HINT:
Operation of the tire pressure warning reset switch
can be checked in TEST MODE.
During TEST MODE, the system is not initialized by
pushing the tire pressure warning reset switch. The
circuit of the tire pressure warning reset switch can be
inspected during this mode.
(a) Make ...
For vehicles equipped with srs airbag and seat belt pretensioner
The SIENNA is equipped with a Supplemental Restraint System (SRS).
CAUTION: Failure to carry out the service operations in the correct sequence could cause the SRS to unexpectedly deploy during servicing and lead to serious injury. Furthermore, if a mistake is made when servicing SRS, it is poss ...