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DTC P1E09: PTC Heater Current Sensor High
DTC P1E0C: PTC Heater Voltage High
cautionBefore replacing the ECU, ensure that the communication circuit is normal.
 
 
 
 
MONITOR EXECUTION
  • Continuous
 
 
MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
Other Monitor (There is no DTC set in memory for the item monitored below)
  • Not applicable
Sensor (The sensor below is determined to be normal)
  • Not applicable
 
 
DTC SET CONDITIONS
Logic Flow Chart <DTC P1E09: PTC Heater Current Sensor High>
Check Conditions
  • Battery management unit (BMU) power supply voltage is 8 volts to 16 volts.
  • Time after above conditions satisfy is more than 1 seconds.
  • Main drive lithium-ion battery PTC heater main relay ON continues 0.2 second.
Judgment Criterion
  • The state of the PTC heater output current is more than 25.3 A continues for 0.3 second.
 
 
DTC SET CONDITIONS
Logic Flow Chart <DTC P1E0C: PTC Heater Voltage High>
Check Conditions
  • Battery management unit (BMU) power supply voltage is 8 volts to 16 volts.
  • Time after above conditions satisfy is more than 1 seconds.
  • Main drive lithium-ion battery PTC heater main relay ON continues 0.2 second.
Judgment Criterion
  • The state of the PTC heater output voltage is more than 699.9 volts continues for 0.3 second.
 
 
FAIL-SAFE AND BACKUP FUNCTION
  • Not available
 
 
PROBABLE CAUSES
  • The main drive lithium-ion battery PTC heater is failed.
 
 
 
 
DIAGNOSIS
Using scan tool (M.U.T.-IIISE), check whether the DTC is set again.
Recheck the DTC.
(1) Erase the DTC.
(2) Turn off the power supply mode of the electric motor switch.
(3) Turn on the power supply mode of the electric motor switch.
(4) Set scan tool (M.U.T.-IIISE) to the actuator testing mode for item No.3: BAT. heating system power relay (Refer to ).
  • Main drive lithium-ion battery PTC heater main relay is ON.
(5) Check the DTC is set.
Is the DTC set?
Remove the battery tray cover (Refer to ). Replace the main drive lithium-ion battery PTC heater (Refer to ). Then, assemble the main drive lithium-ion battery assembly (Refer to ).
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).