P0113: Intake Air Temperature Sensor Circuit High
GarageDex's OBD-II reference explains that code P0113 means "Intake Air Temperature Sensor Circuit High" - The intake air temperature (IAT) sensor is reading too high a signal voltage - the computer sees implausibly cold/absent air-temp data.
Low - safe to drive, fix at your convenience
Safe to drive; minor drivability at most.
Symptoms
- Check-engine light
- Possible hard starts or hesitation
- Slightly off fuel economy
Common causes (most to least likely)
- Faulty IAT sensor (often built into the MAF)
- Wiring open/corrosion at the connector
- Dirty MAF/IAT element
How to fix P0113
- Inspect and reseat the connector
- Clean or replace the IAT/MAF sensor
Guidance only - confirm the cause with a scan before replacing parts. Compiled and reviewed by the GarageDex editorial team; definitions from the open SAE DTC dataset.
Tools & parts for P0113
Confirm the cause before you buy anything - a code points to a system, not a guaranteed part. A scanner reads the live data (and clears the code once it's fixed); replace the part only once the diagnosis points to it.
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Frequently asked
What does the P0113 code mean?
GarageDex's OBD-II reference explains that code P0113 means "Intake Air Temperature Sensor Circuit High" - The intake air temperature (IAT) sensor is reading too high a signal voltage - the computer sees implausibly cold/absent air-temp data.
What are the symptoms of P0113?
Common symptoms: Check-engine light; Possible hard starts or hesitation; Slightly off fuel economy.
What causes a P0113 code?
The common causes, most to least likely: Faulty IAT sensor (often built into the MAF); Wiring open/corrosion at the connector; Dirty MAF/IAT element.
Is it safe to drive with a P0113 code?
Safe to drive; minor drivability at most.
How do I fix a P0113 code?
Inspect and reseat the connector Clean or replace the IAT/MAF sensor Confirm the cause with a scan before replacing parts.