PCM monitors output signals from the HO2S. If PCM judges its signals too slow, the PCM sets a P0133 DTC.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Monitor HO2S's response rate | 1. Poor connection 2. Faulty HO2S 3. Faulty PCM |
Enable Conditions |
•
Engine at operating temperature
•
Engine run time longer than 60sec.
•
Drive at a steady speed between 72-88 km/h (45-55 mph)
•
Engine Coolant greater than 70℃( 158 °F)
•
No disabling faults | |
Threshold value |
•
The calculated response rate is too slow (out of threshold in PCM) | |
Diagnosis Time |
•
Continuous | |
MIL On Condition |
•
3 Driving Cycles |
