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DTC P0A3C: IGBT1 temperature too high
DTC P1005: IGBT2 temperature too high
DTC P1008: IGBT3 temperature too high
DTC P1B40: Condenser temperature too high
DTC P1A3E: Temperature around CPU too high
 
 
 
 
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)
  • Drive motor IGBT temperature sensor <DTC P0A3C, P1005, P1008>
  • Drive motor capacitor temperature sensor <DTC P1B40>
  • Drive motor control module temperature sensor <DTC P1A3E>
 
 
DTC SET CONDITIONS
Logic Flow Chart <DTC P0A3C, P1005, P1008>
Check Conditions <DTC P0A3C, P1005, P1008>
  • The vehicle status is propulsion system active.
  • Time after above conditions satisfy is more than 10 seconds.
Judgment Criterion <DTC P0A3C, P1005, P1008>
  • Change of the IGBT temperature is more than 87°C (189°F) (4.408 volts) for 1 second.
 
 
Logic Flow Chart <DTC P1B40>
Check Conditions <DTC P1B40>
  • Power drive unit (FEMCU) power supply voltage is 8 volts to 16 volts.
Judgment Criterion <DTC P1B40>
  • Change of the power drive unit (FEMCU) capacitor temperature sensor temperature is more than 102°C (216°F) (4.259 volts) for 1 second.
 
 
Logic Flow Chart <DTC P1A3E>
Check Conditions <DTC P1A3E>
  • Power drive unit (FEMCU) power supply voltage is 8 volts to 16 volts.
Judgment Criterion <DTC P1A3E>
  • Change of the power drive unit (FEMCU) module temperature sensor temperature is more than 105°C (221°F) (4.302 volts) for 1 second.
 
 
OBD-II DRIVE CYCLE PATTERN
  • Refer to Diagnostic Function - OBD-II Drive Cycle - Pattern 1 .
 
 
PROBABLE CAUSES
  • The EV cooling system fails (radiator fan, electric water pump, coolant)
  • Pipe clogging
  • Harness abnormality
  • Electric oil pump relay abnormality
  • Malfunction of the power drive unit (FEMCU)
 

 
 
DIAGNOSIS
STEP 1. Using scan tool (M.U.T.-IIISE), check whether the other DTC is set.
Check whether the PHEV-ECU set a DTC P0A05 or P10D9 which is related to the electric water pump.
Is the DTC set?
Carry out troubleshooting for the DTC P0A05 or P10D9 (Refer to GROUP 54Da - PHEV-ECU - Troubleshooting <DTC P0A05> or <DTC P10D9>). Then go to Step 8.
Go to Step 2.
 
STEP 2. Using scan tool (M.U.T.-IIISE), check whether the other DTC is set.
Check whether the PHEV-ECU set a DTC P0691, P0692, P0693, P0694, P10DE or P10DF which is related to the fan, fan motor and fan shroud assembly.
Is the DTC set?
Carry out troubleshooting for the DTC P0691, P0692, P0693, P0694, P10DE or P10DF (Refer to GROUP 54Da - PHEV-ECU - Troubleshooting <DTC P0691, P0692, P0693, P0694>, <DTC P10DE, P10DF>). Then go to Step 8.
Go to Step 3.
 
STEP 3. Using scan tool (M.U.T.-IIISE), check the actuator test.
Check the following actuator test (Refer to GROUP 54Da - PHEV-ECU - Actuator Test Reference Table ).
  • Item No.3: Radiator fan relay 1 actuate
  • Item No.4: Radiator fan relay 2 actuate
Is the check result normal?
Go to Step 4.
Replace the fan, fan motor and fan shroud assembly (Refer to GROUP 14A - Radiator ). Then go to Step 8.
 
STEP 4. Check the EV radiator.
Visually check that the fins of the EV radiator are not dented or deformed.
Is the check result normal?
Go to Step 5.
Replace the EV radiator (Refer to GROUP 14B - EV radiator/EV radiator condenser tank ). Then go to Step 8.
 
STEP 5. Check the motor coolant level.
Check that the motor coolant level is normal. (Refer to GROUP 14B - Motor Coolant Check ).
Is the check result normal?
Go to Step 6.
Replace the parts causing a coolant leak, and then supply coolant. (Refer to GROUP 14B - Motor Coolant Change ). Then go to Step 6.
 
STEP 6. Using scan tool (M.U.T.-IIISE), the special function.
(1) Execute the following special function (Refer to GROUP 54Da - PHEV-ECU - Special Function, Test ).
  • Item 2: Water pump actuate
(2) When forcibly driving the electric water pump, check that the coolant in the EV radiator condenser tank is flowing.
Is coolant flowing?
Go to Step 8.
Replace the water hose and water pipe (Refer to GROUP 14B - Water Hose and Water Pipe <Front>, <Center>, <Rear>), the electric water pump (Refer to GROUP 14B - Water Pump ), the power drive unit (Refer to ), the REMCU (Refer to ), the rear motor assembly (Refer to ) and the on board charger/DC-DC converter (Refer to GROUP 54Dd - On Board Charger (OBC) /DC-DC Converter ). Then go to Step 7.
 
STEP 7. Using scan tool (M.U.T.-IIISE), the special function.
(1) Execute the following special function (Refer to GROUP 54Da - PHEV-ECU - Special Function, Test ).
  • Item 2: Water pump actuate
(2) When forcibly driving the electric water pump, check that the coolant in the EV radiator condenser tank is flowing.
Is coolant flowing?
Go to Step 8.
Replace the water hose and water pipe (Refer to GROUP 14B - Water Hose and Water Pipe <Front>, <Center>, <Rear>), the electric water pump (Refer to GROUP 14B - Water Pump ), the power drive unit (Refer to ), the REMCU (Refer to ), the rear motor assembly (Refer to ) and the on board charger/DC-DC converter (Refer to GROUP 54Dd - On Board Charger (OBC) /DC-DC Converter ). Then go to Step 6.
 
STEP 8. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to Diagnostic Function - OBD-II Drive Cycle - Pattern 1 .
(2) Check the DTC.
Is the DTC set?
Replace the power drive unit (Refer to ). Then go to Step 9.
The procedure is complete.
 
STEP 9. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to Diagnostic Function - OBD-II Drive Cycle - Pattern 1 .
(2) Check the DTC.
Is the DTC set?
Retry the troubleshooting.
The inspection is complete.