Abnormality Judgment
1. Judge as NG when the judgment value is larger than the threshold value after deceleration fuel cut. Response time (diagnosis value)
greater than Threshold value -> Abnormal
2. If the oxygen sensor voltage is small after recovering from a deceleration fuel cut, and remains small, judge as NG.
Time Needed for Diagnosis: 1 time(s)
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
Normality Judgment
1. Regardless of a deceleration fuel cut, if the response time (diagnosis value) when the oxygen sensor voltage has changed from rich to lean
is shorter than the threshold value (judgment value), judge as a normal condition.
Response time (diagnosis value) less than or equal to Threshold value -> Normal
2. Do not judge as a normal condition.
Judge as OK and clear the NG if the following conditions are established.
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