DTC P0037, P0038, P0057, P0058: Ho2S2 Heater: Description: Operation
WARNING: This page is about a different car, the 2011 Infiniti FX50. However, it is still accessible from the selected car via links, so may be relevant.
ENGINE SPEED CHART
| Engine speed |
Heated oxygen sensor 2 heater |
| Above 3,600 RPM |
OFF |
Below 3,600 RPM after the following conditions are met.
- Engine: After warming up
- Keeping the engine speed between 3,500 and 4,000 RPM for 1 minute and at idle for 1 minute under no load
|
ON |