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Home >> Kia >> 2020 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 36 (Occupant Classification System Diagnosis (HEV)) >> DTC B1603-88: CAN Bus Off >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

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Item Detecting Condition Possible Cause
DTC Strategy
  • CAN Communication Check
  1. Poor connector connection
  2. Faulty CAN communication
Enable Conditions
  • Ignition "ON"
  • Battery voltage is between 9 and 16V
Threshold Value
  • CAN message is not received for 10 times
Diagnostic Time
  • 10s
Recovery Time
  • Immediately
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