What causes a thermistor to go bad?
The cause of such failures are usually due to mechanical separation between the resistor element and the lead material, caused by handling damage, excessive heat, thermal mismatch, etc. The second most common failure mode is drift in resistance value as the thermistor ages, or parameter change.
Where should I put the temperature sensor in my car?
Generally, the outside temperature sensor is located under the front of the hood near the bottom of the car. Although the sensor itself is accurate, the location causes the sensor to pick up heat from the road surface.
Where is the fuel temp sensor located on a Toyota Hilux?
The fuel temperature sensor is connected to the engine ECU (See below). The 5 V power source voltage in the engine ECU is applied to the fuel temperature sensor from terminal THF via a resistor R. That is, resistor R and the fuel temperature sensor are connected in series.
What does the amber warning light on a Toyota Hilux mean?
The amber Toyota Hilux four-wheel drive warning light along with a possible audible alarm indicates that the differential oil temperature is too high. If the warning light flashes rapidly and and audible warning sounds, turn the front-wheel drive control switch to H2, and wait until the warning light goes off.
What does the Toyota Hilux rear differential lock warning light mean?
The Toyota Hilux rear differential lock warning light rapidly flashes to indicate a malfunction in the rear differential lock system. The Toyota Hilux oil pressure warning light is not generally an indication of low oil level, though low engine oil level can cause the light to illuminate.
What does the oil pressure light mean on a Toyota Hilux?
The Toyota Hilux oil pressure warning light is not generally an indication of low oil level, though low engine oil level can cause the light to illuminate. If the light comes on while driving, immediately stop the vehicle and switch off the engine.