DTC Detection Logic

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P0131

00

HO2S1 (B1)

(O2 sensor circuit low voltage bank 1 sensor 1)

Diagnosis condition

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Signal (terminal)

A/F sensor 1 signal

Threshold

The A/F signal computed by ECM from the A/F sensor 1 signal is constantly approx. 0 V

Diagnosis delay time

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