Monitor Strategy
| Related DTCs | P0136: Heated oxygen sensor (bank 1) voltage check (voltage malfunction) P0136: Heated oxygen sensor (bank 1) circuit continuity check (circuit short) P0137: Heated oxygen sensor (bank 1) voltage check (low voltage) P0136: Heated oxygen sensor (bank 1) circuit continuity check (circuit open) P0138: Heated oxygen sensor (bank 1) circuit continuity check (out of range) P0139: Heated oxygen sensor (bank 1) response rate during fuel cut P013A: Heated oxygen sensor (bank 1) response rate during fuel cut from rich condition |
| Required Sensors/Components (Main) | Heated oxygen sensor (sensor 2) |
| Required Sensors/Components (Related) | Crankshaft position sensor Engine coolant temperature sensor Mass air flow meter sub-assembly Throttle position sensor Air fuel ratio sensor |
| Frequency of Operation | Once per driving cycle: Active air fuel ratio control detection, heated oxygen sensor abnormal voltage during fuel cut. Continuous: Other |
| Duration | 20 seconds: Heated oxygen sensor voltage check 30 seconds: Heated oxygen sensor circuit continuity check (circuit short) 90 seconds: Heated oxygen sensor circuit continuity check (circuit open) 10 seconds: Heated oxygen sensor circuit continuity check (out of range) 7 seconds: Heated oxygen sensor response rate during fuel cut 7 seconds: Heated oxygen sensor response rate during fuel cut from rich condition |
| MIL Operation | 2 driving cycles: P0136, P0137, P0138 and P0139 Immediate: P013A |
| Sequence of Operation | None |