DTC P2195: Notes
DTC P2195 DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P2195 |
Front HO2S signal stuck lean |
| DETECTION CONDITION |
- The PCM monitors the front HO2S output current when the following conditions are met. If the average output current is more than 1.2 A
for 25 s
, the PCM determines that the front HO2S has a malfunction.
MONITORING CONDITION
- ECT: more than 70°C {158°F}
- Engine speed: 1, 000-3, 200 RPM
- Charging efficiency. 20-62.5%
- Output voltage from the rear HO2S: 0.2 V or above
Diagnostic support note
- This is an intermittent monitor (HO2S).
- The 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.
- The DTCs are stored in the PCM memory.
|
| POSSIBLE CAUSE |
- Front HO2S malfunction
- Fuel injector malfunction
- Insufficient fuel line pressure
- Fuel pressure sensor malfunction
- Relief valve (built-in fuel delivery pipe) malfunction
- Spill valve control solenoid valve (built-in high pressure fuel pump) malfunction
- High pressure fuel pump malfunction
- Exhaust gas leakage
- Air suction at intake-air system malfunction
- Fuel leakage
- MAF sensor malfunction
- ECT sensor malfunction
- PCM malfunction
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