If the HO2S signal voltage is fixed at rich status, then feedback control is no longer possible, the PCM/ECM sets DTC P2196.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Characteristic line middle shift | 1. Poor connection or damaged harness 2. Front HO2S |
Enable Conditions |
•
No relevant failure
•
10volt ＜ battery voltage ＜ 16 volt | |
Threshold Value |
•
Active test symptom during shift of lambda setpoint to rich or lean ( after P2096 / P2097 detection) | |
Diagnostic Time |
•
10 sec | |
Mil On Condition |
•
2 Driving Cycles |
