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GD(H4DOTC)-54 Diagnostic Trouble Code (DTC) Detecting Criteria GENERAL DESCRIPTION 5. DIAGNOSTIC METHOD • Abnormality Judgement If the duration of time while the following conditions are met is longer than the time indicated, judge as NG. Time Needed for Diagnosis: 5000 ms • Normality Judgement Judge as OK and clear the NG if the continuous time while the following conditions are established is more Time Needed for Diagnosis: Less than 1 second Judgement Value Malfunction Criteria Threshold Value Battery voltage t 10.9 V Time of heater control duty at 70 % or t 36000 ms Front oxygen (A/F) sensor impedance. > 500 : Judgement Value Malfunction Criteria Threshold Value Battery voltage t 10.9 V Front oxygen (A/F) sensor impedance. d 500 : |