Early models it is in the bumper skirt on the drivers side. Look for a small hole. It has t 2 wires and fits facing the front.
You will find the outside air temperature sensor under the battery tray
I've been told that the outside temperature sensor is located under the front bumper.
Outside temperature sensor either unplugged or broken. Do an internet search for the sensor using the specifics of your vehicle (ie 2003 BMW 330i outside temperature sensor). You will find replacement parts and diagrams of how to fix this yourself.
The IAT, intake air temperature sensor, measure the temperature of the outside air as it hit the air duct. ?æWhen you look under the hood and follow the intake air hose you will find the sensor.
think you will find it under the drivers side bumper, it looks like a round disk.
www.magiant.it
The water temperature sensor is located on the front of the engine. You will find the sensor behind the thermostat housing.
You can find a good coolant temperature sensor at Auto Parts Warehouse at http://www.autopartswarehouse.com/models/toyota~tacoma_pick_up~makemodel.html. You may also find them at Advance Auto Parts at shop.advanceautoparts.com/.../product_Engine-Coolant-Temperature
Driverside of radiator, bottom clip above bottom hose, the sensor that plugs in and snaps
The sensor its self is to the right of the steering column just below the dashboard. (source: Lincon LS User manual)
The intake air temperature sensor on a 1991 Honda Civic is found on the intake. The intake air temperature reads to climate of the air that is being sucked in through to the engine.
The temp sensor is under the front bumper area on the right hand side about half way between the right edge of radiator and the inside of the right hand side front wheel arch. you might have to take down the wheel arch mud guard to find it.