DTC P2196 [L3 With TC]: Notes
DTC P2196 [L3 WITH TC] DETECTION CONDITION AND POSSIBLE CAUSE
| DTC P2196 |
A/F sensor signal stuck rich |
| DETECTION CONDITION |
- The PCM monitors the A/F sensor output when the following conditions are met. If the output is less than 0.85
for 25 s
, the PCM determines that the A/F sensor 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 HO2S: 0.7 V or less
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.
- DTCs are stored in the PCM memory.
|
| POSSIBLE CAUSE |
- Erratic signal to PCM
- APP sensor
- ECT sensor
- MAF sensor
- TP sensor
- VSS signal
- Related connector or terminal malfunction
- Related wiring harness malfunction
- A/F sensor malfunction
- Fuel injector malfunction
- Excessive fuel 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
- Restriction in intake-air system
- MAF sensor malfunction
- ECT sensor malfunction
- PCM malfunction
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