Diagnostic Method
WARNING: This page is about a different car, the 2013 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.
Detect the trouble by calculating the time from the completion of the fuel cut to the beginning of the rear oxygen sensor voltage starting to rise.
Fig 1: Time From Completion Of Fuel Cut To Beginning Of Rear Oxygen Sensor Voltage Starting To Rise Graph
- Abnormality Judgment
Judge as NG when the following conditions are established.
JUDGMENT VALUE
| Malfunction Criteria | Threshold Value |
|---|---|
| The number of times that the rear oxygen sensor voltage changed to 0.3 V after the fuel cut has completed (time counter) | > 3750 time(s) |
Time Needed for Diagnosis: 10 seconds
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
- Normality Judgment
Judge as OK and clear the NG if the following conditions are established.
JUDGMENT VALUE
| Malfunction Criteria | Threshold Value |
|---|---|
| The number of times that the rear oxygen sensor voltage changed to 0.3 V after the fuel cut has completed (time counter) | ≤ 3750 time(s) |
Time Needed for Diagnosis: 10 seconds