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Diagnosis Procedure
1.CHECK LIN COMMUNICATION SIGNAL 1
M.U.T.-III SE DATA MONITOR
Select “Battery current sen value (LIN)” of “IPDM E/R” data monitor item.
Monitor itemConditionMonitor status
Battery current sen value (LIN)The power supply mode of the electric motor switch is ON (READY indicator is ON) or during charging.(–200.00) – (+300.00) A
Is the inspection result normal?
Replace IPDM E/R. Refer to Removal and Installation.
 
2.CHECK FUSE
  1. Turn the electric motor switch OFF.
  2. Check that the following fuse is not blown (open).
    No.Capacity
    910A
Is the fuse blown (open)?
Replace the blown (open) fuse after repairing the cause of blown (open).
 
3.CHECK 12V BATTERY CURRENT SENSOR POWER
  1. Disconnect 12V battery current sensor connector.
  2. Turn the electric motor switch ON.
  3. Check the voltage between 12V battery current sensor harness connector and ground.
    (+)(-)Voltage (V)
    12V battery current sensor
    ConnectorTerminal
    H72Ground12V battery voltage
Is the inspection result normal?
Repair or replace harness.
 
4.CHECK LIN COMMUNICATION SIGNAL
  1. Turn the electric motor switch ON.
  2. Check signal between 12V battery current sensor harness connector and ground using an oscilloscope.
    (+)(−)Signal
    12V battery current sensor
    ConnectorTerminal
    H73Ground
Is the inspection result normal?
Repair or replace harness.
Replace 12V battery current sensor.