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DTC No. U3D01-42 Logical Block - General Memory Failure
DTC No. U3D01-51 Logical Block - Not Programmed
 
 
 
 
DTC SET CONDITION
Check Condition
  • The power supply mode of the electric motor switch is ON.
Judgment Criterion
  • The ECU update fails.
 
 
TROUBLESHOOTING HINTS
  • The faulty update data
  • Updating ECU using the wrong update data
  • Malfunction of the PHEV-ECU
 
 
DIAGNOSIS
Required Special Tools:
  • MB992744: Vehicle communication interface-Lite (V.C.I.-Lite)
  • MB992745: V.C.I.-Lite main harness A
  • MB992747: V.C.I.-Lite USB cable short
  • MB992748: V.C.I.-Lite USB cable long
1.Check whether the DTC is set again.
Is the DTC set?
Update the ECU again. Then,
The trouble can be an intermittent malfunction (Refer to General Information - How to Use Troubleshooting/Inspection Service Points, How to Cope with Intermittent Malfunctions HOW TO COPE WITH INTERMITTENT MALFUNCTIONS).
 
2.Check whether the DTC is set again.
Is the DTC set?
Replace the PHEV-ECU (Refer to PHEV-ECU REMOVAL AND INSTALLATION).
The procedure is complete.