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Home >> Kia >> 2017 >> Sedona L >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 3) >> DTC P0685: ECM/PCM Power Relay Control Circuit/Open >> DTC Information >> DTC Detecting Condition
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DTC Information: DTC Detecting Condition

Item Detecting Condition Possible cause
DTC Strategy
  • Electrical monitoring
  1. Poor connector connection
  2. Open or short in control circuit
  3. Defected main relay
  4. Defected PCM
Enable Conditions
  • Engine "ON"
  • Battery voltage is at between 11V and 16V
Threshold value
  • Open or short in control circuit
Diagnosis Time
  • Continuous
MIL On Condition
  • 2 driving cycles
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