DTC Advanced Diagnostics: P0133: General Description
The powertrain control module (PCM) forcibly sets the target of the air/fuel ratio to a certain width to monitor the responsiveness of rear air/fuel ratio (A/F) sensor (bank 1, sensor 1). If the amplitude output by rear A/F sensor (bank 1, sensor 1) at that time is narrow, the PCM detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type
| Execution | Once per driving cycle |
| Sequence | None |
| Duration | 5 seconds or more |
| DTC Type | Two drive cycles, MIL on |