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DTC P0AC0: Current Sensor Rationality
DTC P0AC1: Current Sensor Range Check-min
DTC P0AC2: Current Sensor Range Check-max
cautionWhenever ECU is replaced, ensure that the CAN bus lines are normal.
 
 
 
 
MONITOR EXECUTION <DTC P0AC0>
  • Once per driving cycle
 
 
MONITOR EXECUTION <DTC P0AC1, P0AC2>
  • 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)
  • Not applicable
 
 
DTC SET CONDITIONS
Logic Flow Chart <DTC P0AC0>
Check Conditions
  • battery management unit (BMU) power supply voltage is 8 volts to 16 volts.
  • When the state of the vehicle is before starting the high voltage mode.
Judgment Criterion
  • Change of the main drive lithium-ion battery current is more than 0.04 ampere for 0.1 second.
 
 
Logic Flow Chart <DTC P0AC1, P0AC2>
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.
Judgment Criterion <DTC P0AC1>
  • Change of the main drive lithium-ion battery current is less than -400 amperes for 0.3 second.
Judgment Criterion <DTC P0AC2>
  • Change of the main drive lithium-ion battery current is more than 400 amperes for 0.3 second.
 
 
OBD-II DRIVE CYCLE PATTERN
  • Refer to OBD-II Drive Cycle - Pattern 1 .
 
 
FAIL-SAFE AND BACKUP FUNCTION
  • Not available
 
 
PROBABLE CAUSES
  • The main drive lithium-ion battery current sensor is failed.
 
 
 
 
DIAGNOSIS
STEP 1. Using scan tool (M.U.T.-IIISE), check whether the DTC is set.
Check whether DTC P1AAC is set.
Is the DTC set?
Perform the troubleshooting (Refer to ).
Go to Step 2.
 
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 1 .
(2) Check if the DTC is set.
Is the DTC set?
Retry the troubleshooting.
The procedure is complete.