DTC P2196: Notes
DTC P2196 DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P2196 |
Front HO2S signal stuck rich |
| DETECTION CONDITION |
- The PCM monitors the front HO2S output voltage when the following conditions are met. If output voltage is more than 0.45 V
for 41 s
, the PCM determines that the front HO2S signal remains rich.
MONITORING CONDITION
- Fuel injection control system status: feedback zone
Diagnostic support note
- This is an intermittent monitor (HO2S).
- MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
- PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle.
- FREEZE FRAME DATA is available.
- DTC is stored in the PCM memory.
|
| POSSIBLE CAUSE |
- Front HO2S malfunction
- Fuel injector malfunction
- Excessive fuel pressure
- Restriction in intake air system
- MAF sensor malfunction
- ECT sensor malfunction
- PCM malfunction
|