Diagnostic Method
- Abnormality Judgment
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.
Judgment Value
MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCEMalfunction criteria Threshold value Terminal voltage level when ECM outputs OFF signal
orLow level Terminal voltage level when EGR operates Low level Time Needed for Diagnosis: 2500 ms
Malfunction Indicator Light: Illuminates as soon as a malfunction occurs.
- Normality Judgment
Judge as OK and clear the NG if the continuous time while the following conditions are established is more than the predetermined time.
Judgment Value
MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCEMalfunction criteria Threshold value Terminal voltage level when ECM outputs OFF signal High level Terminal voltage level when EGR operates High level Time Needed for Diagnosis: 256 ms