Friday, August 9, 2019

2020 Subaru Forester P code Page 43

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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