OBD2 code P0113: Intake Air Temperature (IAT) sensor – high input
P0113 means the IAT sensor signal voltage is abnormally high (open circuit). Usual culprits: disconnected sensor, broken wiring or a faulty intake air temperature sensor.
Detected Root Component
Powertrain Component
Observed Symptoms
- Check engine light illuminated
- Hard cold starts or rough idle when warm
- Increased fuel consumption
- Black smoke on some engines
Possible Causes
- IAT sensr disconnected or faulty
- Open circuit in signal or ground wiring
- Corroded sensr connector
- Sensor reading confused with MAF/ACT on combined units
Tools Required
Interactive Diagnostic
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Parts likely to be the cause (Thermostat / Refroidissement)
Thermostat / Refroidissement
Photo d'illustration : Thermostat / Refroidissement
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Frequently asked questions about code P0113
What does code P0113 mean? ▾
OBD2 code P0113: Intake Air Temperature (IAT) sensor – high input. P0113 means the IAT sensor signal voltage is abnormally high (open circuit). Usual culprits: disconnected sensor, broken wiring or a faulty intake air temperature sensor.
What are the symptoms of code P0113? ▾
Code P0113 may cause: Check engine light illuminated, Hard cold starts or rough idle when warm, Increased fuel consumption, Black smoke on some engines. The intensity of these symptoms varies depending on the vehicle and driving conditions.
What causes code P0113? ▾
The most common causes of code P0113 are: IAT sensor disconnected or faulty, Open circuit in signal or ground wiring, Corroded sensor connector, Sensor reading confused with MAF/ACT on combined units. A proper OBD2 diagnostic will pinpoint the exact cause.
Is it serious to drive with code P0113? ▾
Code P0113 has moderate severity (Warning). Short-term driving remains possible, but a prompt check is recommended to prevent worsening.
How do I fix code P0113? ▾
Start by reading the code with an OBD2 scanner, then follow the interactive decision tree on this page. Priority causes to check: IAT sensor disconnected or faulty, Open circuit in signal or ground wiring, Corroded sensor connector, Sensor reading confused with MAF/ACT on combined units. Difficulty: Medium · Estimated time: 30-60min.