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DTC No. U1D5F-87: Loss of communication via CAN
DTC No. U2143-87: CAN comm err (PHEV-ECU)
 
 
 
 
TROUBLE JUDGMENT
Check condition <DTC No. U1D5F-87>
  • 5 seconds or more elapse after the IGCT power supply is turned ON.
Check condition <DTC No. U2143-87>
  • When the power supply mode of the electric motor switch is ON
Judgment Criterion
  • The CAN signal from the PHEV-ECU can not be received for 2 seconds or more.
 
 
TROUBLESHOOTING HINTS
  • Malfunction of the CAN bus line
  • Malfunction of the PHEV-ECU power supply circuit
  • Malfunction of the PHEV-ECU
  • Malfunction of the On Board Charger (OBC)/DC-DC converter
 
 
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?
Diagnose the CAN bus line (Refer to CAN Fundamental - Trouble Diagnosis Flow Chart Trouble Diagnosis Flow Chart).
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).