P0113
Low SeverityIntake Air Temperature Sensor Circuit High
Fuel System
P0113 — Instant Answer
Intake Air Temperature Sensor Circuit High
Severity: LOW SEVERITY
Meaning: IAT sensor voltage is above maximum range, reading as extremely cold air. Usually an open circuit.
Safe to drive? Usually yes with caution, but confirm root cause before long trips.
Estimated repair cost: $10 - $30
Most common causes:
- 1. Open circuit in IAT wiring (35-45% of cases)
- 2. Failed IAT sensor (open) (35-45% of cases)
- 3. Disconnected connector (10-25% of cases)
Symptoms
- ⚠️Check engine light
- ⚠️Slightly lean running
- ⚠️Poor cold-start performance
Related Symptoms
Common Causes
How to Diagnose P0113
- 1Check IAT connector is plugged in
- 2Measure sensor resistance
- 3Check continuity of wiring
- 4Replace sensor if open-circuit
OEM Procedures for P0113
Intake Air Temperature Sensor 1 Circuit High Input Found 2 OEM service manual procedures.
Intake Air Temperature Sensor - Intake Air Temperature Sensor Replacement
Intake Air Temperature Sensor - Intake Air Temperature Sensor Replacement
Intake Air Temperature Sensor - Intake Air Temperature Sensor Replacement
Intake Air Temperature Sensor - Intake Air Temperature Sensor Replacement
Intake Air Temperature Sensor - Intake Air Temperature Sensor Replacement
Intake Air Temperature Sensor - Intake Air Temperature Sensor Replacement
Intake Air Temperature Sensor - Intake Air Temperature Sensor Replacement
Intake Air Temperature Sensor - Intake Air Temperature Sensor Replacement
OEM Diagnostic Flowchart
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Read live data and freeze frame for P0113 to pinpoint the cause before buying parts.
TopScan
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ArtiLink600
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Parts & Tools for This Job
Common parts shoppers buy for P0113 Intake Air Temperature Sensor Circuit High.
Thermostat
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Engine Coolant
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Water Pump
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Coolant Temp Sensor
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OBD2 scanner
Read codes and freeze-frame data before you guess at the fault.
Most diagnostic jobs start with a scan tool and a verified code path.
Check SpecificationsBattery tester
Check cranking and charging health before replacing expensive parts.
A weak battery can mimic alternator or starter problems.
Check SpecificationsMultimeter kit
Confirm voltage, continuity, and sensor power with one simple kit.
A meter is the cheapest way to rule out a bad circuit fast.
Check SpecificationsRelated Resources
Repair guides, symptom pages, and wiring diagrams related to P0113.
OEM Manual Evidence
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PGM-FI DTCS — 2013 Acura MDX 3.7L Eng VIN YD2 Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reimagined Home >> Acura >> 20...
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Engine Control System DTCS — 2013 Acura RDX 3.5L Eng VIN 3 Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reimagined Home >...
Related Symptoms
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Open the exact vehicle hub grounded by OEM manual evidence related to P0113.
Related Codes
The IAT sensor circuit has a fault. This sensor measures incoming air temperature for fuel calculations.
IAT sensor voltage is too low, indicating impossibly high air temperature. Usually a short circuit in the sensor or wiring.
Frequently Asked Questions
- Is P0113 serious?
- Not very. The ECM uses a default temperature. You may notice poor cold-start or slightly off fuel economy.
- Can a disconnected sensor cause P0113?
- Yes — P0113 often means the sensor connector simply came unplugged. Check it first.
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Author & Review
Published by AllOEMManuals, founded by Lyndon Bedford, an automotive technician with 20 years of experience. He owned and operated a mechanic shop in Hurst, Texas from 2014 to 2022 and continues hands-on repair work.
Content may combine manual references, general repair templates, and AI-assisted drafting. Confirm the source, vehicle configuration, and applicability before working. Report corrections through our contact page.
Last updated: 2026-10-29