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DTC B1400: SIS (Side Impact Sensor) Front-Driver Defect: DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item Detecting Condition Possible cause
DTC Strategy
  • Check Data
  • Faulty DSIS circuit.
  • Faulty DSIS.
  • Faulty SRSCM.
Enable Conditions
  • Ignition "ON"
Threshold Value
  • DSIS send defect code
  • DSIS output is not expected value
Diagnostic Time Qualification
  • Ini (Start Up):100 ms (500μs x 20)
  • Steady:1s (10ms x 100)
De-Qualification
  • Ini (Start Up):IGN off -> on
  • Steady:IGN off -> on
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