Where is the cooling sensor on a Mazda 626?

The cooling sensor, often referred to as the coolant temperature sensor, on a Mazda 626 is typically located near the engine block, usually on or near the thermostat housing. It is positioned to monitor the temperature of the coolant as it circulates through the engine. In some models, it may also be found near the cylinder head. Always consult the vehicle's service manual for the exact location, as it can vary by model year.