Fuel Injection (Fuel System)
SENSORS AND SWITCHES
FU-23
C: ENGINE COOLANT TEMPERATURE SENSOR
The engine coolant temperature sensor is located on the engine coolant pipe. The sensor uses a
thermistor whose resistance changes inversely with temperature. Resistance signals as engine
coolant temperature information are transmitted to the ECM to make fuel injection, ignition timing,
purge control solenoid valve and other controls.
(1) Connector
(2) Thermistor element
(2)
(1)
Resistance (kΩ)
Temp. °C (°F)
–20
(–4)
0
(32)
1
2.5
20
(68)
40
(104)
60
(140)
80
(176)
20°C (68°F) 2.5kΩ
S2H1113B
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