Diagnostic Method 2

Detect the malfunction by calculating the average amplitude of λ.

Fig 1: Average Amplitude Graph

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• Abnormality Judgment 

  Judge as NG when the following conditions are established.

  JUDGMENT VALUE CHART
  
  

  Malfunction Criteria	Threshold Value	DTC
  Average value for λ amplitude	> 0.055	P015A and P015B

  Time Needed for Diagnosis:  60 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 CHART
  
  

  Malfunction Criteria	Threshold Value	DTC
  Average value for λ amplitude	≤ 0.055	P015A and P015B

  Time Needed for Diagnosis:  60 seconds