DTC Detection Logic
WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
| DTC No. | CONSULT screen terms (Trouble diagnosis content) |
DTC detecting condition | Possible cause |
|---|---|---|---|
| P0037 | HO2S2 HTR (B1) (HO2S heater control circuit low bank 1 sensor 2) |
The current amperage in the heated oxygen sensor 2 heater circuit is out of the normal range. (An excessively low voltage signal is sent to ECM through the heated oxygen sensor 2 heater.) |
|
| P0038 | HO2S2 HTR (B1) (HO2S heater control circuit high bank 1 sensor 2) |
The current amperage in the heated oxygen sensor 2 heater circuit is out of the normal range. (An excessively high voltage signal is sent to ECM through the heated oxygen sensor 2 heater.) |
|
| P0057 | HO2S2 HTR (B2) (HO2S heater control circuit low bank 2 sensor 2) |
The current amperage in the heated oxygen sensor 2 heater circuit is out of the normal range. (An excessively low voltage signal is sent to ECM through the heated oxygen sensor 2 heater.) |
|
| P0058 | HO2S2 HTR (B2) (HO2S heater control circuit high bank 2 sensor 2) |
The current amperage in the heated oxygen sensor 2 heater circuit is out of the normal range. (An excessively high voltage signal is sent to ECM through the heated oxygen sensor 2 heater.) |
|