Toyota Sienna Service Manual: Evaporator temperature sensor
ON-VEHICLE INSPECTION
1. INSPECT A/C EVAPORATOR TEMPERATURE SENSOR
(a) Remove the A/C evaporator temperature sensor (A/ C thermistor).
(b) Disconnect the connector from the A/C evaporator temperature sensor (A/C thermistor).
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance 
NOTICE:
- Even slightly touching the sensor may change the resistance value. Be sure to hold the connector of the sensor.
- When measuring, the sensor temperature must be the same as the ambient temperature.
HINT: As the temperature increases, the resistance decreases (see the graph).
If the resistance is not as specified, replace the A/C evaporator temperature sensor (A/C thermistor).
Ambient temperature sensor
ON-VEHICLE INSPECTION
1. INSPECT A/C AMBIENT TEMPERATURE SENSOR
(a) Remove the A/C ambient temperature sensor.
(b) Disconnect the connector from A/C ambient
temperature sensor.
(c) Measur ...
Evaporator temperature sensor (for rear air conditioning system)
ON-VEHICLE INSPECTION
1. INSPECT REAR A/C EVAPORATOR TEMPERATURE SENSOR
(a) Remove the rear evaporator temperature sensor.
(b) Disconnect the connector from the rear evaporator
temperature s ...
Other materials:
On-vehicle inspection
1. INSPECT FRONT PASSENGER AIRBAG ASSEMBLY
(VEHICLE NOT INVOLVED IN COLLISION)
Perform a diagnostic system check.
With the front passenger airbag assembly installed
on the vehicle, perform a visual check. If there are
any defects as mentioned below, replace the
instrumen ...
Perform zero point calibration of yaw rate and deceleration sensor (when
using sst check wire)
NOTICE:
While obtaining the zero point, do not vibrate the
vehicle by tilting, moving or shaking it and keep it
in a stationary condition. (Do not turn the ignition
switch to the ON position.)
Be sure to do this on a level surface (with an
inclination of less than 1 %).
(a) Proc ...
System diagram
1. DISC PLAYER OUTLINE
A CD player uses a laser pickup to read digital
signals recorded on CDs. By converting the digital
signals to analog, music and other content can be
played.
CAUTION:
Do not look directly at the laser pickup because
the CD player uses an invisible laser bea ...
