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Home >> Kia >> 2017 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Body Control Module Diagnosis (PHEV) >> DTC B1603-00: CAN Bus OFF (B-CAN) >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Check CAN Communication
  1. CAN High and Low Line Coincidentally Short to Battery
  2. CAN High and Low Line Coincidentally Short to Ground
Enable Condition
  • Battery voltage is between 9V and 16V
  • BCM CAN Communication Operating
Threshold Value
  • B_CAN message is abnormal
DTC Erasing
  • DTC is erased after solved problem
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