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Home >> Infiniti >> 2022 >> QX55 Essential >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (1 Of 5) >> DTC/Circuit Diagnosis >> DTC P0127: IAT Sensor >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P0127

00

IAT SENSOR-B1

(Intake air temperature too high)

Diagnosis condition

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Signal (terminal)

Intake air temperature sensor 1 signal

Threshold

When the amount of intake air is sufficient, the temperature sent from IAT 1 is more than 90 deg.C (194 deg.F).

Diagnosis delay time

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