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DTC P0A83: Battery Cooling Fan (Stuck ON)
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 temporary DTC set in memory for the item monitored below)
  • Battery CAN monitor
Sensor (The sensor below is determined to be normal)
  • Not applicable
 
 
DTC SET CONDITIONS
Logic Flow Chart
Check Conditions
  • battery management unit (BMU) power supply voltage is 8 volts to 16 volts.
  • Time after above conditions satisfy is more than 1 second.
  • Main drive lithium-ion battery cooling fan drive request is off (Stop command).
Judgment Criterion
  • The state of the main drive lithium-ion battery cooling fan drive status continues for 5 seconds.
 
 
OBD-II DRIVE CYCLE PATTERN
  • Refer to OBD-II Drive Cycle - Pattern 7 .
 
 
FAIL-SAFE AND BACKUP FUNCTION
  • Not available
 
 
PROBABLE CAUSES
  • The main drive lithium-ion battery cooling fan is failed.
 
 
 
DIAGNOSIS
STEP 1. 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 whether the DTC is after 10 seconds or more.
Is the DTC set?
Remove the battery tray cover (Refer to ). Replace the main drive lithium-ion battery cooling fan (Refer to ). Then, assemble the main drive lithium-ion battery assembly (Refer to ). Then go to Step 2.
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).
 
STEP 2. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to OBD-II Drive Cycle - Pattern 7 .
(2) Check if the DTC is set.
Is the DTC set?
Retry the troubleshooting.
The procedure is complete.