What is IAT on a scan tool?
TEST 1: Checking The Intake Air Temperature Value. The very first thing that you and I need to do, before anything else, is to hook up a Scan Tool to your vehicle’s diagnostic connector and check what the intake air temperature (IAT) sensor is reporting to the PCM (Powertrain Control Module = Fuel Injection Computer).
What’s the best way to test the IAT sensor?
Scan tool. Although you can check the IAT sensor without a scan tool, using a scan tool with Live Data capability is the fastest and easiest way to test the IAT sensor. Don’t have one? Check out my recommendation: Abe’s Scan Tool Recommendation. Wire piercing probe. This tool makes it super easy to test the voltages inside the wires.
How to test the intake air temp ( IAT )?
Testing the intake air temperature (IAT) sensor, which is located inside the mass air flow (MAF) sensor, can easily be done with a scan tool and/or a multimeter.
What should I do if my IAT is not working?
Connecting the 2 IAT wires with jumper cables should change the temperature to 300 °F. If this does not happen, it might mean that the wiring or the computer is bad. Now, to test the IAT sensor with a multimeter, you should measure the resistance of the sensor.
What does the code p0112 mean on the IAT sensor?
The P0112 code indicates that the IAT sensor is operating at a low voltage and reports a temperature of about 300 °F (149 °C). The P0113 code is caused by a high circuit voltage and means that the IAT sensor reports a temperature of about -38 °F (-39 °C). What is an Intake Air Temperature Sensor?
What to do if you find a problem with your IAT sensor?
Whether you find a sensor-related DTC or not, if you suspect a problem with the IAT sensor, you should: Check the sensor itself. if necessary, inspect the wiring and connectors in the sensor’s circuit. Check for a dirty or clogged air filter.
What causes a bad intake air temperature ( IAT ) sensor?
The above symptoms of a bad intake air temperature (IAT) sensor are not a foolproof way of determining the problem, because they are common for a few other malfunctioning components as well, such as mass air flow sensor, oxygen sensors, coolant temperature sensor, etc.
Where is the IAT sensor on a Ford Explorer?
An IAT sensor located on the air duct of a Ford Explorer. Author’s own photo. A bad intake air temperature (IAT) sensor may cause one or more of the following symptoms: lean misfire, usually in a cold engine Faulty EGR system (in some applications)
When do I get a p0113 code on my IAT sensor?
The P0113 code often occurs when there is a break in the wiring to the IAT sensor. How do you troubleshoot code P0113 ? This is a simple circuit, just two wires running from the ECU to the IAT sensor.