Diagnostic Method
Detect the trouble by calculating the response time of the rear oxygen sensor during fuel cut.
Judge as NG when the following conditions are established.
JUDGMENT VALUE SPECIFICATION
| Malfunction Criteria | Threshold Value |
|---|---|
| Time needed for rear oxygen sensor voltage to change from 0.5 V to 0.2 V | More than 1000 ms |
Time needed for diagnosis: Less than 1 s
Malfunction indicator light illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.