Monitor Strategy
| Related DTCs | P2237: Air fuel ratio sensor open circuit between A1A+ and A1A- P2238: Air fuel ratio sensor short circuit between A1A+ and A1A- P2238: Air fuel ratio sensor short circuit between A1A+ and GND P2238: Air fuel ratio sensor low admittance P2239: Air fuel ratio sensor short circuit between A1A+ and +B P2252: Air fuel ratio sensor short circuit between A1A- and GND P2253: Air fuel ratio sensor short circuit between A1A- and +B |
| Required Sensors/Components (Main) | Air fuel ratio sensor |
| Required Sensors/Components (Related) | Engine coolant temperature sensor Crankshaft position sensor |
| Frequency of Operation | Continuous |
| Duration | 10 seconds: P2237 10 seconds: P2238 (air fuel ratio sensor low admittance) 5 seconds: Others |
| MIL Operation | 2 driving cycles |
| Sequence of Operation | None |