Diagnostic Method
Detect a malfunction by measuring the time from the beginning of the fuel cut until the rear oxygen sensor voltage starts to drop.
| (A) | 0.5 V |
| (B) | 0 V |
| (C) | Diagnostic parameter |
| (D) | Normal |
| (E) | Malfunction |
Judge as NG when the following conditions are established.
JUDGMENT VALUE SPECIFICATION
| Malfunction Criteria | Threshold Value |
|---|---|
| Time needed for the rear oxygen sensor voltage to change up to 0.5 V after the fuel cut started | More than 4000 ms |
Time needed for diagnosis: Less than 1 s
Malfunction indicator light illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.