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DTC U0111: BMU CAN timeout <Generator control unit>
 
 
 
 
TROUBLE JUDGMENT
Check Condition
  • The power supply mode of the electric motor switch is ON.
 
 
PROBABLE CAUSES
  • Malfunction of the CAN bus
  • Malfunction of the BMU
  • Malfunction of the power drive unit [generator control unit (GCU)]
 
 
DIAGNOSIS
STEP 1. Using scan tool (M.U.T.-IIISE), diagnose CAN bus line.
  • Diagnose CAN bus line.
Is the CAN bus line normal?
Go to Step 2.
Repair CAN bus line (Refer to GROUP 54C - Troubleshooting - CAN Bus Diagnostics Table ).
 
STEP 2. Using scan tool (M.U.T.-IIISE), check whether the other DTC is set.
Check whether the other ECU performing CAN communication with BMU set DTC U0111 (Refer to GROUP 54C - CAN Communication-related Diagnosis Code (U-code) Table ).
Is the DTC set?
Go to Step 3.
Go to Step 4.
 
STEP 3. Using scan tool (M.U.T.-IIISE), check whether the other DTC is set again.
Is the DTC set?
Replace the BMU (Refer to GROUP 54Dc - BMU ).
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).
 
STEP 4. Using scan tool (M.U.T.-IIISE), check whether the DTC is set again.
Is the DTC set?
Replace the power drive unit (Refer to ).
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).