Prepare the vehicle Open the hood and find a place to set your multimeter. Open the coolant reservoir or radiator cap to access the coolant.

The coolant temperature sensor (CTS), also known as the engine coolant temperature sensor, plays a crucial role in a vehicle's engine operating system. It is typically a thermistor, with resistance ...

"How many volts above freezing is it?" A multimeter is the most common item of test equipment used by elec- tronic hobbyists. This is with good reason, considering how useful it is, but, of ...

A vehicle's engine coolant termperature sensor plays a significant role in preventing overheating. Here are four signs that it has failed and needs replacing.