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Home >> Infiniti >> 2023 >> QX55 Essential >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (5 Of 5) >> DTC/Circuit Diagnosis >> DTC P2238: O2 sensor bank 1 sensor 1 >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P2238

00

O2 sensor bank 1 sensor 1

(O2 Sensor Positive Current Control Circuit Low Bank 1 Sensor 1)

Diagnosis condition

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Signal (terminal)

A/F sensor 1 signal

Threshold

The output voltage computed by ECM according to the A/F sensor 1 signal is constant.

Diagnosis delay time

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