Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSMAZDA20105 SPORT, 2.3 L, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMON-BOARD DIAGNOSTIC [ENGINE CONTROL SYSTEM L3]DTC P0113NOTES

2010 Mazda 5 Sport, 2.3 L, Standard

DTC P0113: Notes

2010 Mazda 5 Sport, 2.3 L, StandardSECTION Notes

DTC P0113 [L3] DETECTION CONDITIONS AND POSSIBLE CAUSES

DTC P0113

IAT sensor circuit high input

DETECTION CONDITION

The PCM monitors the IAT sensor signal. If the PCM detects the IAT sensor voltage above 4.84 V for 5s , the PCM determines that IAT sensor circuit has malfunction.

Diagnostic support note

This is a continuous monitor (CCM).
MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
FREEZE FRAME DATA (Mode 2/Mode12) is available.
The DTC is stored in the PCM memory.

POSSIBLE CAUSE

Poor connection at MAF/IAT sensor or PCM connector
IAT sensor malfunction
Short to power supply in wiring harness between MAF/IAT sensor terminal D and PCM terminal 1 AT
Open circuit in wiring harness between MAF/IAT sensor terminal D and PCM terminal 1 AT
Open circuit in wiring harness between MAF/IAT sensor terminal E and PCM terminal 1AV
PCM malfunction

Courtesy of MAZDA MOTORS CORP.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.