16-108 ELECTRICAL SYSTEM
Switches and Sensors
Outside Temperature Sensor Inspection
Remove the outside temperature sensor (see Outside
Temperature Sensor Removal).
Suspend the sensor [A] in a container of machine oil so
that the heat-sensitive portion is submerged.
Suspend a thermometer [B] with the heat-sensitive por-
tion [C] located in almost the same depth with the sensor.
The sensor and thermometer must not touch the con-
tainer side or bottom.
Place the container over a source of heat and gradually
raise the temperature of the oil while stirring the oil gently
for even temperature.
Using a digital meter, measure the internal resistance
of the sensor across the terminals at the temperatures
shown in the following.
Outside Temperature Sensor Resistance
5.4 ∼ 6.6 kΩ at 0°C (32°F)
0.29 ∼ 0.39 kΩ at 80°C (176°F)
If the reading is out of the standard, replace the sensor.
Fuel Level Sensor Inspection
Fuel Pump (see Fuel Pump Removal in the Fuel System
Check that the float moves up and down smoothly without
binding. It should go down under its own weight.
If the float does not move smoothly, replace the fuel pump.
Float in Full Position [A]
Float in Empty Position [B]
Using a tester [A], measure the resistance across the ter-
minals in the fuel level sensor lead connector [B].
Special Tool - Needle Adapter Set: 57001-1457
If the tester readings are not as specified, or do not
change smoothly according as the float moves up and
down, replace the fuel pump.
Fuel Level Sensor Resistance
Standard: Full position: 9.6 ∼ 12.4 Ω
Empty position: 222 ∼ 228 Ω