Toyota COMPUTER-CONTROLLED SYSTEM

ELECTRONIC CONTROL SYSTEM
- Water Temperature Sensor,
Intake Air Temperature Sensor
®
WATER TEMPERATURE INTAKE AIR TEMPERATURE
SENSOR SENSO
R
This sensor detects the coolant temperature by This sensor detects the temperature of the
means of an internal thermistor
. intake air by means of an internal thermistor
.
~
Thermistor
OHP 24
,4
) For L-type EF I
(vane type )
-20 0 20 40 60 80 100 120
(-4) (32) (68)(104)(140)(176)(212) ( 248)
Temperature °C (°F) OHP 2
4
ELECTRICAL CIRCUITRY
Engine ECU
Thermisto
r
(1
)
For D-type EF I
(optical Karman vortex type )
Air flow mete
r
Water temperature
senso r
(intake air temperature sensor)
OHP 24
OHP 2 5
Intake air
temp . senso r
OHP 25
30