Diagnostic Method
Judge NG when the continuous time of completing the malfunction criteria below becomes more than 5 seconds.
Judgment Value
JUDGMENT VALUE
| Malfunction Criteria | Threshold Value |
|---|---|
| Voltage | >/= 10.9 V |
| Time after engine starting | >/= 50 seconds |
| Cumulative amount of front lambda sensor heater control duty every 128 milliseconds | >/= 28000% |
| Front O2 (A/F) sensor impedance | >/= 500 ohm |
Time Needed for Diagnosis: 5 seconds
Malfunction Indicator Light Illumination: Illuminates as soon as the malfunction occurs.