P0113 Ford F-150
Intake Air Temperature Sensor 1 Circuit High · Powertrain Code · Low · Repair: Easy
What is P0113?
The IAT sensor is reading above its expected range — possible open circuit.
When the Ford F-150 triggers code P0113 (intake air temperature sensor 1 circuit high), it typically points to an issue in the powertrain system. Below you'll find the most common causes, symptoms, and repair options specific to the Ford F-150.
This repair is rated easy, meaning basic tools, no lift needed.
Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your Ford F-150.
Common Causes on Ford F-150
- Open circuit in the IAT sensor wiring — corroded connector pins
- Failed IAT sensor (often integrated into the MAF sensor housing on Ford)
- Disconnected IAT/MAF sensor connector
- Rodent or abrasion damage to wiring harness near air filter box
Symptoms
- Check engine light
- Slightly rough cold start
- Engine may default to a fixed IAT value affecting fuel trim
- Minor fuel economy decrease
Notes for Ford F-150
On most modern Fords, the IAT sensor is built into the MAF sensor housing — replacing the MAF sensor fixes IAT issues as well.