DTC Detection Logic
| DTC No. | Trouble diagnosis name (Trouble diagnosis content) |
DTC detecting condition | Possible cause |
|---|---|---|---|
| P0037 | HO2 HTR (B1) (Heated oxygen sensor 2 heater control circuit low) |
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 | HO2 HTR (B1) (Heated oxygen sensor 2 heater control circuit high) |
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.) |
|