P0137

DTC P0137 O2 SENSOR CIRCUIT LOW VOLTAGE (BANK 1 SENSOR 2)

1. OUTLINE OF DIAGNOSIS
Detect continuity NG of the oxygen sensor.
If the oxygen sensor voltage reading is not within the probable range considering the operating conditions, judge as NG.

2. COMPONENT DESCRIPTION






3. ENABLE CONDITION

Used for abnormality judgement









4. GENERAL DRIVING CYCLE
After starting the engine, continuously perform the diagnosis with the same engine condition.

5. DIAGNOSTIC METHOD

- Abnormality Judgement
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.






Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.

- Normality Judgement
Judge as OK and clear the NG if the continuous time while the following conditions are established is more than the predetermined time.