The 2003 Honda Odyssey Thermistor is a division of circuit related to low fuel caution light. The thermistor is located near the bottom of the tank. The thermistor is a small metallic cylinder, which is connected with a yellow colored wire.
Whenever the thermistor is dipped into the fuel, the thermistor exhibits very high resistance as a result the low fuel warning light for low fuel doesn’t glow. If the fuel drops, the thermostat is exposed to air and it exhibits low resistance and that in turn leads to current flow and the low fuel -warning light will glow.
Thermistor Inputs
The fuel –injection system in the Honda vehicles uses various input categories for injector pulse width determination, timing control of ignition. There are two thermistor inputs for this purpose, the ECT and IAT; the intake air temperature sensor and engine coolant temperature sensor.
The two inputs of the thermistor IAT and ECT uses thermistor for monitoring purpose. These sensors monitor the change in temperature. The resistance values are varied with respect temperature change. The values of thermostat resistance are increased with respect to temperature change and vice-versa.