yep the 2 wires are supposed to connect to 2 little sensors right above the oil filter, feel around and u'll notice them there is 1 other wire back there to another sensor, (the 2 wires are the temp sensor), the radiator thermo sensor is the sensor on the passenger side of the block going to the ecu, its a plug type sensor that costs about 20 bucks to replace at most import parts stores.