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DIAGNOSTIC FUNCTION
 
 
HOW TO CONNECT THE M.U.T.-III SE
Required Special Tools:
  • MB992744: Vehicle communication interface-Lite (V.C.I.-Lite)
  • MB992745: V.C.I.-Lite main harness A
  • MB992747: V.C.I.-Lite USB cable short
  • MB992748: V.C.I.-Lite USB cable long
cautionTo prevent damage to M.U.T.-III SE, always turn OFF the power supply mode of the electric motor switch before connecting or disconnecting M.U.T.-III SE.
1. Ensure that the power supply mode of the electric motor switch is OFF.
2. Start up the personal computer.
3. Connect special tool MB992747 or MB992748 to special tool MB992744 and the personal computer.
4. Connect special tool MB992745 to special tool MB992744.
5. Connect special tool MB992745 to the data link connector.
noteWhen the special tool MB992745 is connected to the data link connector, the special tool MB992744 indicator light will be illuminated in a green color.
6. Start the M.U.T.-III SE system on the personal computer.
noteDisconnecting M.U.T.-III SE is the reverse of the connecting sequence, making sure that the power supply mode of the electric motor switch is OFF.
 
 
HOW TO READ AND ERASE DIAGNOSTIC TROUBLE CODES
Required Special Tools:
  • MB992744: Vehicle communication interface-Lite (V.C.I.-Lite)
  • MB992745: V.C.I.-Lite main harness A
  • MB992747: V.C.I.-Lite USB cable short
  • MB992748: V.C.I.-Lite USB cable long
cautionTo prevent damage to M.U.T.-III SE, always turn OFF the power supply mode of the electric motor switch before connecting or disconnecting M.U.T.-III SE.
1. Connect M.U.T.-III SE to the data link connector. Refer to "HOW TO CONNECT THE M.U.T.-III SE".
2. Turn the power supply mode of the electric motor switch to ON.
3. Select "OBC" or "DC/DC" from system select screen of the M.U.T.-III SE.
4. Select "Diagnostic Trouble Code" to read the DTC.
5. If a DTC is set, it is shown.
6. Choose "Erase DTCs" to erase the DTC.
 
 
HOW TO READ DATA LIST
Required Special Tools:
  • MB992744: Vehicle communication interface-Lite (V.C.I.-Lite)
  • MB992745: V.C.I.-Lite main harness A
  • MB992747: V.C.I.-Lite USB cable short
  • MB992748: V.C.I.-Lite USB cable long
cautionTo prevent damage to M.U.T.-III SE, always turn off the power supply mode of the electric motor switch before connecting or disconnecting M.U.T.-III SE.
1. Connect M.U.T.-III SE to the data link connector. Refer to "HOW TO CONNECT THE M.U.T.-III SE".
2. Turn the power supply mode of the electric motor switch to ON.
3. Select "OBC" or "DC/DC" from system select screen of the M.U.T.-III SE.
4. Select "Data List."
5. Choose an appropriate item and select the "OK" button.
 
 
HOW TO DIAGNOSE THE CAN BUS LINES
Required Special Tools:
  • MB992744: Vehicle communication interface-Lite (V.C.I.-Lite)
  • MB992745: V.C.I.-Lite main harness A
  • MB992747: V.C.I.-Lite USB cable short
  • MB992748: V.C.I.-Lite USB cable long
cautionTo prevent damage to M.U.T.-III SE, always turn off the power supply mode of the electric motor switch before connecting or disconnecting M.U.T.-III SE.
1. Connect M.U.T.-III SE to the data link connector. Refer to "HOW TO CONNECT THE M.U.T.-III SE".
2. Turn the power supply mode of the electric motor switch to ON.
3. Perform the CAN bus diagnostics (Refer to ELECTRICAL & POWER CONTROL – LAN system, CAN Fundamental, Basic Inspection, Diagnosis and Repair Workflow EXPLANATION ABOUT THE SCAN TOOL (M.U.T.-III SE) CAN BUS DIAGNOSTICS).
 
 
FREEZE FRAME DATA CHECK
By using M.U.T.-IIISE, the freeze frame data can be checked.
 
 
When detecting fault and setting the DTC, the ECU connected to CAN bus line obtains the data when the DTC is determined, and then stores the ECU status of that time. By analysing each data using M.U.T.-IIISE, troubleshooting can be carried out efficiently. The displayed items are as the table below.
 
 
DISPLAY ITEM LIST (OBC)
Item No.M.U.T.-IIISE displayUnit or value
10ODO/TRIP METERkm/mile
20DTC NoValue is displayed
30CHARGE TYPENot active/AC CHARGE 100V/AC CHARGE 200V/DC CHARGE/V2X/DC GB
40ACCUMULATION ABNORMALITY STOP NUMBER OF TIMESValue is displayed
50This charge timemin
60IGCT VOLTAGEV
70PFC TEMPERATURE°C/°F
80VOLTAGE UP DEPARTMENT TEMPERATURE1°C/°F
90VOLTAGE UP DEPARTMENT TEMPERATURE2°C/°F
100INSIDE TEMPERATURE°C/°F
110CHOT STATUSLo/Hi
120PLUGIN CHG STATUSNo HV charge/HV battery Charge
130ABNORMAL STOP INFORMATIONOFF/ON
140EEPROM write completeComplete/In writing
150S2SWOFF/ON
160CHOT STATUS(CAN)Lo/Hi
170COOLING REQUEST STATEOFF/ON
180IGCT POWER HOLD STATEOFF/ON
190PFC START SIGNALSTOP/START
200INPUT CURRENT Zero Point Confirmation flagDisallowed/Permissions
210Limit history(INPUT VOLTAGE)No Limit history/Limit history/N/A/Under Limits
220Limit history(Temperature)No Limit history/Limit history/N/A/Under Limits
230CELL MAX TEMPERATURE°C/°F
240CELL MIN TEMPERATURE°C/°F
250BATTERY CURRENTA
260CHARGE IN OPERATIONOFF/ON
270VEHICLE ABNORMAL STOP INFORMATIONOFF/ON
280CHG START STATUSNo request/Charge start request/Main contactor ON request
290OBC CONTROL STATESLEEP MODE/OBC WAIT MODE/IDLING MODE/DC CHARGE MODE/AC CHARGE MODE/CHARGE END MODE
300OBC CONTROL STATE(AC CHARGE)OUT OF THE AC CHARGE MODE/AC CHARGE START MODE/AC CHARGE MODE/AC CHARGE STOP MODE/AC CHARGE END MODE
310S2 SWICH STATEOFF/ON
320CHG GUN STATUSNot/Half insert/Insert
330DC CHARGE/DISCHARGE SUB MODEOUT OF THE DC CHARGE MODE/CHADEMO CHARGE/CHADEMO CHARGE AND DISCHARGE
340DC CHG GUN STATUSNot connect/Connect/Connect and switch M OFF
350D1 SIGNALOFF/ON
360D2 SIGNALOFF/ON
370SWICH K STATEOFF/ON
380SWICH M STATEOFF/ON
390DC CONTACTOR STATE(P)OFF/ON
400DC CONTACTOR STATE(N)OFF/ON
410ACCUMULATION CHARGE NUMBER OF TIMES(100V)Value is displayed
420ACCUMULATION CHARGE NUMBER OF TIMES(200V)Value is displayed
430ACCUMULATION CHARGE TIMES(100V)Value is displayed
440ACCUMULATION CHARGE TIMES(200V)Value is displayed
450INPUT VOLTAGEV
460INPUT CURRENTA
470OUTPUT VOLTAGEV
480OUTPUT CURRENTA
490PLT DUTY%
500OUTPUT RESTRICTIONS STATENo limit/Limit by AC charge/Limit by internal temperature/Limit by DC inlet temperature
510CHARGE CURRENTA
520DC CHARGE SEQUENCE NUMBERBEFORE START/D1 SIGNAL DETECTION/VEHICLE CAN START/CHARGER CAN RECEIVE/SWICH K ON/VEHICLE CHARGE IS POSSIBLE/D2 SIGNAL DETECTION/DC CONTACTOR ON/CHARGE ORDER TRANS START/CHARGER STATE=1
530AC CHARGE CURRENT ORDER VALUEA
540DC CHARGE CURRENT ORDER VALUEA
550DISCHARGE UPPER LIMIT CURRENT ORDER VALUEA
560PFC OUTPUT VOLTAGEV
570DTC countValue is displayed
580Supplier Fault CodeValue is displayed
590OBC COOLANT FLOW RQValue is displayed
 
 
DISPLAY ITEM LIST (DC-DC converter)
Item No.M.U.T.-IIISE displayUnit or value
10ODO/TRIP METERkm/mile
20DCDC accumulation movement number of timestimes
30DCDC accumulation operating timemin
40DCDC wakeup timemin
50DCDC accumulation abnormal stop number of timestimes
6012V output voltage order valueV
70DCDC input voltageV
80DCDC input currentA
90DCDC output voltage(S terminal)V
100DCDC output voltage(B terminal)V
110DCDC output currentA
120IGCT voltageV
130DCDC INV temperature 1°C/°F
140DCDC rectification temperature 1°C/°F
150DCDC INV temperature 2°C/°F
160DCDC rectification temperature 2°C/°F
170Driving permission signalON/OFF
180DCDC abnormalON/OFF
190Battery Voltage(CAN)V
200DCDC_FLOW_RQValue is displayed
210DTC Occurrence CounterValue is displayed
220Supplier Fault CodeValue is displayed