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.

2006 Mazda MPV ESFACTORY OEM SERVICE PROCEDURE

DTC P0113: Notes

DTC P0113 [AJ] DETECTION CONDITION AND POSSIBLE CAUSES

DTC P0113

IAT circuit high input

DETECTION CONDITION

The PCM monitors IAT sensor signal at PCM terminal 15. If the PCM detected IAT sensor voltage above 4.84 V , the PCM determines that the IAT sensor circuit has a malfunction.

Diagnostic support note

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

POSSIBLE CAUSE

IAT sensor malfunction
Open circuit between MAF/IAT sensor terminal F and PCM terminal 15
Short to power circuit between MAF/IAT sensor terminal F and PCM terminal 15
Open circuit between MAF/IAT sensor terminal A and PCM terminal 20
Poor connection at MAF/IAT sensor or PCM connector.
PCM malfunction

Courtesy of MAZDA MOTORS CORP.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready Tools Compare Repair Quote Quote Shield Pro

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.