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DTC No. P0C79-00 PDU V1 voltage-high
DTC No. P3012-17 PDU V2M voltage-high
DTC No. P3013-17 PDU V0 voltage-high
DTC No. P3014-17 PDU V2S voltage-high
 
 
danger
 
 
 
 
MONITOR EXECUTION
Continuous
 
 
MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
Other Monitor (There is no temporary DTC set in memory for the item monitored below)
  • Not applicable
Sensor (The sensor below is determined to be normal)
  • Power drive unit voltage sensor
 
 
DTC SET CONDITIONS
Logic Flow Chart A
Logic Flow Chart B
Check Condition A <DTC No. P0C79-00, P3012-17, P3013-17>
  • Power drive unit (VCU) power supply voltage is 8.0 volts or more.
  • IGBT status: ON
Judgment Criterion A <DTC No. P0C79-00, P3012-17, P3013-17>
  • The voltage-high switch is in ON condition three times or more.
Check Condition B <DTC No. P0C79-00, P3012-17, P3013-17>
  • Power drive unit (VCU) power supply voltage is 8.0 volts or more.
Judgment CriterionB <DTC No. P0C79-00, P3012-17, P3013-17>
  • The voltage-high switch is in ON condition for 0.4 second or more.
Check Condition A <DTC No. P3014-17>
  • Power drive unit (VCU) power supply voltage is 8.0 volts or more.
  • IGBT status: ON
Judgment Criterion A <DTC No. P3014-17>
  • The voltage-high switch is in ON condition three times or more.
Check Condition B <DTC No. P3014-17>
  • Power drive unit (VCU) power supply voltage is 8.0 volts or more.
Judgment Criterion B <DTC No. P3014-17>
  • The voltage-high switch is in ON condition for 0.5 second or more.
 
 
OBD-II DRIVE CYCLE PATTERN
 
 
TROUBLESHOOTING HINTS
  • Malfunction of the power drive unit
  • Malfunction of the BMU system
  • Malfunction of the PHEV-ECU
  • Malfunction of the high-voltage cable (malfunction of the drive battery front cable)
 
 
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.M.U.T.-IIISE other DTC check
Check whether the DTC, which has the higher priority than this DTC, is set. (Refer to DTC Inspection Priority Chart).
Is the DTC set?
Troubleshoot the set DTC (Refer to DIAGNOSTIC TROUBLE CODE CHART). Then,
 
2.M.U.T.-IIISE other system DTC
Check whether the PHEV-ECU sets the following DTC.
  • DTC No. P0AA1-00 Hybrid/EV Battery Positive Contactor Circuit Stuck Closed
  • DTC No. P0AA4-00 Hybrid/EV Battery Negative Contactor Circuit Stuck Closed
  • DTC No. P0ADB-00 Hybrid/EV Battery Positive Contactor Control Circuit Low
  • DTC No. P0ADC-00 Hybrid/EV Battery Positive Contactor Control Circuit High
Is the DTC set?
Troubleshoot the set DTCs (Refer to DIAGNOSTIC TROUBLE CODE CHART). Then,
 
3.M.U.T.-IIISE other system data list
Check the following BMU data list.
  • Item No. 1030: Total Voltage of Battery
    OK: Less than 404 V
Is the check result normal?
Troubleshoot the DTC set in the BMU (Refer to DATA LIST REFERENCE TABLE). Then,
 
4.Check of the high-voltage terminal (P, N line) of power drive unit
danger
  • Carry out the check on the high-voltage circuit while reading carefully the precautions on handling a high-voltage vehicle.
  • Wear the specified protection equipment during the check.
Check whether the high-voltage terminal of the drive battery front cable (P, N line) is connected to the power drive unit with the specified torque (Refer to POWER DRIVE UNIT REMOVAL AND INSTALLATION).
Is the check result normal?
Install the drive battery front cable with the specified torque (Refer to POWER DRIVE UNIT REMOVAL AND INSTALLATION). Then,
 
5.Check of the high-voltage terminal of the drive battery (front side)
danger
  • Carry out the check on the high-voltage circuit while reading carefully the precautions on handling a high-voltage vehicle.
  • Wear the specified protection equipment during the check.
Check whether the high-voltage terminal of the drive battery front cable (P, N line) is connected to the drive battery with the specified torque (Refer to POWER DRIVE UNIT REMOVAL AND INSTALLATION).
Is the check result normal?
Properly connect the drive battery front cable connector (drive battery side) (Refer to POWER DRIVE UNIT REMOVAL AND INSTALLATION). Then,
 
6.Visually check the drive battery front cable
danger
  • Carry out the check on the high-voltage circuit while reading carefully the precautions on handling a high-voltage vehicle.
  • Wear the specified protection equipment during the check.
Visually check that there is no burnout, damage, foreign material on the cable between the drive battery and power drive unit.
Is the check result normal?
Replace the drive battery front cable (Refer to DRIVE BATTERY CABLE REMOVAL AND INSTALLATION). Then,
 
7.Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to OBD-II Drive Cycle OBD-II DRIVE CYCLE.
(2) Check the DTC.
Is the DTC set?
Replace the power drive unit (Refer to POWER DRIVE UNIT REMOVAL AND INSTALLATION). 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).
 
8.Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to OBD-II Drive Cycle OBD-II DRIVE CYCLE.
(2) Check the DTC.
Is the DTC set?
Retry the troubleshooting.
The procedure is complete.