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DTC U11B9: BMU lost (SUB_BMU)
 
 
 
 
TROUBLE JUDGMENT
Check Conditions
  • The power supply mode of the electric motor switch is ON, or the main drive lithium-ion battery starts to be charged.
Judgment Criterion
  • The signal sent by the BMU through the CAN cannot be received.
 
 
COMMENT ON TROUBLE SYMPTOM
Past trouble
  • For diagnosis procedures, refer to "How to treat past trouble" (refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Treat Past Trouble ).
 
 
FAIL-SAFE AND BACKUP FUNCTION
  • Not available
 
 
PROBABLE CAUSES
  • The sub-battery management unit [BMU (SUB)] is failed.
 
 
DIAGNOSIS
Erase the DTC.