DTC Detection Logic

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P0053

HO2S1 HTR B1

(HO2S heater resistance bank 1 sensor 1)

Diagnosis condition

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Signal (terminal)

A/F sensor 1 heater (bank 1) signal

Threshold

During engine running, weighted average of A/F sensor internal resistance is out of the normal range

Diagnosis delay time

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