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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Engine Control System (DTC/Circuit Diagnosis) (5.6L) (1 Of 6)) >> DTC/Circuit Diagnosis >> DTC P0057: Ho2S2 Heater >> DTC Description >> DTC Detection Logic

DTC Detection Logic

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DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P0037

HO2S2 HTR (B1)

[Heated oxygen sensor 2 heater (bank 1) control circuit low]

Diagnosis condition

--

Signal (terminal)

Heated oxygen sensor 2 heater signal

Threshold

An excessively low voltage signal is sent to ECM through the heated oxygen sensor 2 heater

Diagnosis delay time

--

P0038

HO2S2 HTR (B1)

[Heated oxygen sensor 2 heater (bank 1) control circuit high]

Diagnosis condition

--

Signal (terminal)

Heated oxygen sensor 2 heater signal

Threshold

An excessively high voltage signal is sent to ECM through the heated oxygen sensor 2 heater

Diagnosis delay time

--

P0057

HO2S2 HTR (B2)

[Heated oxygen sensor 2 heater (bank 2) control circuit low]

Diagnosis condition

--

Signal (terminal)

Heated oxygen sensor 2 heater signal

Threshold

  • An excessively low voltage signal is sent to ECM through the heated oxygen sensor 2 heater
  • ECM detects the heated oxygen sensor 2 heater circuit is short to ground

Diagnosis delay time

--

P0058

HO2S2 HTR (B2)

[Heated oxygen sensor 2 heater (bank 2) control circuit high]

Diagnosis condition

--

Signal (terminal)

Heated oxygen sensor 2 heater signal

Threshold

An excessively high voltage signal is sent to ECM through the heated oxygen sensor 2 heater

Diagnosis delay time

--