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DTC P0325: Knock Sensor 1 Circuit: DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item Detecting Condition Possible cause
DTC Strategy
  • Signal at current segment is compared to previous one
  • Poor connection
  • Open or short in knock sensor circuit
  • Defective knock sensor
  • Defective ECM
Enable Conditions
  • Time after start > 2 sec
  • Engine speed is greater than or equal to 2500 rpm
  • Load value is greater than or equal to 30%
Threshold value
  • Amount of change IVp (t) - Vp (t-1)I < 0.06V
  • Counter that above condition is fulfilled is greater than or equal to 200 times
Diagnosis Time
  • Continuous
MIL On Condition
  • No MIL ON
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