< Soaking timer IC setting diagnosis >

When setting the activation setting time to soaking timer IC, compare the writing value to soaking timer IC with read out value. Judge as malfunction if the values do not match 3 times in a row.

Fig 1: ECM/PCM Internal Engine Diagnostic Chart (Soaking Timer IC Setting Diagnosis)

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• Abnormality Judgment 

  Judge as NG when the following conditions are established.

  JUDGMENT VALUE REFERENCE CHART
  
  

  Malfunction Criteria	Threshold Value
  Writing value and read out value when setting the soaking timer	Unmatch
  Number of retrying the soaking timer setting	≥ 3 times

• Normality Judgment 

  Judge as OK when the following conditions are established.

  JUDGMENT VALUE REFERENCE CHART
  
  

  Malfunction Criteria	Threshold Value
  Writing value and read out value when setting the soaking timer	Match