P0113: Intake Air Temperature Sensor 1 Circuit High Bank 1
A generic powertrain (engine and transmission) trouble code, same meaning on every brand.
Yes - fueling runs slightly rich on a default value; fix at convenience.
Symptoms
- Check engine light, often few other symptoms
- Slightly rough cold starts, marginal economy loss
Likely causes, most common first
- Intake air temp sensor circuit open - often the connector
- Damaged wiring near the airbox
- Failed IAT sensor (frequently built into the MAF)
Read P0113 yourself before paying for diagnosis
A basic Bluetooth OBD-II scanner ($20-40) plugs into the port under the dashboard and shows this code with live sensor data on your phone - useful both for confirming the fix and for talking to a shop from an informed position.
What is going on and how it gets diagnosed
P0113 means the intake air temperature signal is stuck reading impossibly hot-side-open - the electrical signature of a broken circuit. The computer substitutes a safe default, so the engine runs, just not optimally.
On many engines the IAT lives inside the MAF housing, so this code and MAF codes share wiring and fixes. It is among the friendlier codes to diagnose at home: a multimeter and a wiring diagram settle it in half an hour.
Repair options and cost
Typical US independent-shop ranges, parts and labor. Dealers run higher; regional labor rates vary.
Owner reports mentioning P0113
“The contact owns a 2012 Nissan Rogue. The contact stated while driving at an undisclosed speed, the vehicle was shaking and made an abnormal rattling sound. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, who retrieved DTC codes: P0420 (Catalyst System Efficiency Below Threshold), P0113 (Intake Air Temperature Sensor), P0101, and P0102 (Mass Air Flow (MAF) sensors). The independent mechanic replaced the intake air temperature sensor and the MAF sensors; however, the failure recurred. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was opened. The failure mileage was approximately 206,669.”2012 Nissan Rogue · Jan 2025 · 206,669 mi
“Error codes p0113 and p0102 and warning messages for check engine and ics malfunction* lappeared when starting the garaged vehicle in approximately 55f room temperature. Toyota of escondido and toyota's customer care telephone center explained that they will not inspect (although under the 3-year/36,000 miles warranty) without a service fee. Online, reports that a failing 12v battery may cause multiple codes to be triggered were also met with a request for a $110 diagnostic fee. The battery is also under the 3-year/36,000 mile warranty. Error codes and messages implicate fuel efficiency, pollution and safety issues. *ics is their collision sensor system.”2018 Toyota Prius · Jan 2020 · 19,100 mi
“The car power will fluctuate with the rpm going up and down when trying to accelerate. New trhottle body with tps sensor, intake air sensor and gas pedal sensors were replaced and still having the same issue. The engine problem light is on also the electric throttle control system light is on. The vehicle has only 83000 miles. Active codes are p0642, p2138, p0335 & p0113. The car is dangerous to drive due to speed fluctuation.”2009 Dodge Journey · Aug 2017 · 83,000 mi
Cars that report P0113 most often
Based on mentions of this code in NHTSA owner complaints.
Frequently asked questions
Can I drive with P0113?
Yes - fueling runs slightly rich on a default value; fix at convenience.
How much does it cost to fix P0113?
Typical US repair costs range from $50 for the simplest fix (connector or wiring fix) to $450 in the worst case. The right number depends on which cause your car has - see the causes list.
Definition per SAE J2012 standard nomenclature. Symptoms, causes and costs are editorial guidance - always confirm with a diagnosis of your specific vehicle.