P0113 Honda Accord
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 Honda Accord 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 Honda Accord.
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 Honda Accord.
Common Causes on Honda Accord
- Failed Intake Air Temperature (IAT) sensor
- Open circuit in IAT sensor wiring
- Corroded IAT sensor connector pins
- IAT sensor integrated in MAF housing — MAF assembly failure
Symptoms
- Check Engine Light on
- Slightly rough idle when cold
- Minor fuel economy decrease
- Engine may run richer than normal
Notes for Honda Accord
On most Honda models the IAT is integrated into the MAF sensor housing — replacing just the IAT is not possible, the entire MAF assembly must be replaced.