DIAGNOSIS FUNCTION



INSPECTION WITH M.U.T.-III DATA LIST


Reading data list or performing an actuator test using M.U.T.-III enables you to check the vehicle body harnesses and components for abnormalities. Sensor input or output to the actuator can be displayed in numerical values or graphs in the data list while in the actuator test the actuator can be forced to drive.

DIAGNOSIS PROCEDURE



1.Connect M.U.T.-III to perform inspection with the data list.
2.If any abnormality is found, inspect and repair vehicle body harnesses and components.
3.After repair, check that input and output have returned to normal.
4.If a diagnosis code which is caused by inspection and repair work is generated, erase the diagnosis code.
5.Disconnect M.U.T.-III and perform a test run to check that the malfunction phenomenon is resolved.

CHECK ON FREEZE FRAME DATA


When judging malfunctions and storing diagnosis codes, the On board charger/DC-DC converter should store the malfunction status per diagnosis code. This function is called "Freeze frame data". By analyzing this "Freeze frame data" with the M.U.T.-III, an effective troubleshooting can be performed. The display items of freeze frame data are shown below.

Freeze Frame Data List
Item No.
Data item
Unit
1
Odometer
km*1
2
Ignition cycle*2
-
3
Elapsed time*2
min
4
Accumulated minute*2
min
5
Accumulated charge count for 100V
times
6
Accumulated charge count for 200V
times
7
Accumulated charge time for 100V
min
8
Accumulated charge time for 200V
min
9
Current charge time
min
10
Accumulated charge fail stop count
times
11
Voltage target value
V
12
Current target value
A
13
Input voltage
V
14
Input current
A
15
Output voltage
V
16
Output current
A
17
PFC output voltage
V
18
Power supply voltage
V
19
PFC temperature
°C
20
Inverter temperature 1
°C
21
Inverter temperature 2
°C
22
Inside temperature
°C
23
Pilot signal (duty ratio)
%
24
Current input voltage
No input or 200V
25
Control mode
Idling, Charge start, Charging, Charge end, EEPROM or Error
26
S2 switch
OFF or ON
27
On board charge permit (CAN) flag
OFF or ON
28
Reserved-charging flag
OFF or ON
29
PFC start-up flag
OFF or ON
30
Output limit flag
OFF or ON
31
Charge flag
OFF or ON
32
Abnormal stop flag
OFF or ON
33
Cooling request flag
OFF or ON
34
Control power supply request flag
OFF or ON
35
DCDC accumulated active count
times
36
DCDC accumulated active time
min
37
Current DCDC active time
min
38
DCDC accumulated fail stop count
times
39
DCDC output volt target value
V
40
DCDC input voltage
V
41
DCDC input current
A
42
DCDC output voltage (S terminal)
V
43
DCDC output voltage (B terminal)
V
44
DCDC output current
A
45
DCDC power supply voltage
V
46
DCDC inverter temperature 1
°C
47
DCDC rectification temperature
°C
48
DCDC inverter temperature 2
°C
49
DCDC drive permission flag
OFF or ON
50
DCDC active flag
OFF or ON
51
DCDC fail flag
OFF or ON
52
DCDC power supply voltage (CAN)
V
53
DCDC motor/inverter coolant temperature
°C
note *1: If the odometer signal is not received from the combination meter or if invalid values are input, the FFFF km is displayed on the M.U.T.-III.
note *2: The data item is shown on the M.U.T.-III display. FF or FFFF appears.

FAIL-SAFE AND BACKUP FUNCTION


The control is carried out, which keeps the safety driving by the preset control logic when the diagnosis code is stored. The diagnosis code having the fail-safe function is as follows.

List of fail-safe and backup function items
Code No.
Diagnosis item
Fail safe control
P1C00
DCDC input voltage abnormal

  • The output of the DC-DC converter stops.

P1C01
DCDC input current abnormal

  • The output of the DC-DC converter stops.

P1C02
DCDC output voltage abnormal

  • The output of the DC-DC converter stops.

P1C03
DCDC battery sensing disengaged

  • The output of the DC-DC converter continues.

P1C04
DCDC no power generation

  • The output of the DC-DC converter continues.

P1C05
DCDC output current abnormal

  • The output of the DC-DC converter stops.

P1C06
DCDC IGCT voltage abnormal

  • The output of the DC-DC converter stops.
  • The normal charging is stopped

P1C07
DCDC inverter temperature abnormal

  • The output of the DC-DC converter stops.

P1C08
DCDC output rectifier temperature abnormal

  • The output of the DC-DC converter stops.

P1C09
DCDC inside temperature abnormal

  • The output of the DC-DC converter stops.

P1C11
DCDC ROM/RAM fail

  • The output of the DC-DC converter stops.

P1C12
DCDC EEPROM fail

  • The output of the DC-DC converter continues.

P1C13
DCDC A/D converter

  • The output of the DC-DC converter stops.

P1C14
DCDC input current sensor fail

  • The output of the DC-DC converter stops.

P1C15
DCDC output current sensor fail

  • The output of the DC-DC converter stops.

P1C16
Local CAN communication fail

  • The output of the DC-DC converter continues.

P1C19
DCDC low temperature abnormal

  • The output of the DC-DC converter stops.

P1C20
Output voltage command abnormal

  • The output of the DC-DC converter continues.

P1C24
DCDC input over current abnormal

  • The output of the DC-DC converter stops.

P1C25
DCDC internal circuit abnormal

  • The output of the DC-DC converter stops.

P1C26
DCDC hunting abnormal

  • The output of the DC-DC converter continues.

P1C27
DCDC inverter temperature 2

  • The output of the DC-DC converter stops.

P1D00
AC input voltage abnormal (low voltage)

  • The charge is stopped

P1D01
AC input voltage abnormal (high voltage)

  • The charge is stopped

P1D02
AC input voltage abnormal (overvoltage)

  • The charge is stopped

P1D03
AC input current (high current)

  • The charge is stopped

P1D04
AC input current (overcurrent)

  • The charge is stopped

P1D05
AC input current (control fail)

  • The charge is stopped

P1D06
Output voltage abnormal (high voltage)

  • The charge is stopped

P1D08
Load connection abnormal

  • The charge is stopped

P1D09
Output current abnormal (high current)

  • The charge is stopped

P1D10
Output current abnormal (control fail)

  • The charge is stopped

P1D11
Output current abnormal (overcurrent)

  • The charge is stopped

P1D14
Voltage command abnormal

  • The charge is stopped

P1D15
Current command abnormal

  • The charge is stopped

P1D16
Pilot signal abnormal (charge not allowed)

  • The charge is stopped

P1D17
Pilot signal abnormal (digital communication)

  • The charge is stopped

P1D18
Pilot signal frequency abnormal

  • The charge is stopped

P1D19
PFC circuit output voltage abnormal (high voltage)

  • The charge is stopped

P1D20
PFC circuit output voltage abnormal (low voltage)

  • The charge is stopped

P1D21
PFC circuit output voltage abnormal (overvoltage)

  • The charge is stopped

P1D23
Power circuit abnormal (pre-charge fail)

  • The charge is stopped

P1D25
Inverter current abnormal

  • The charge is stopped

P1D26
Inside temperature abnormal

  • The charge is stopped

P1D27
PFC temperature abnormal

  • The charge is stopped

P1D28
Abnormal temperature in inverter circuit1

  • The charge is stopped

P1D29
Abnormal temperature in inverter circuit2

  • The charge is stopped

P1D30
Low temperature abnormal

  • The charge is stopped

P1D31
ROM/RAM fail

  • The charge is stopped

P1D32
EEPROM fail

  • The normal charge continues.

P1D33
AD converter abnormal

  • The charge is stopped

P1D34
Input current sensor fail

  • The charge is stopped

P1D35
Output current sensor fail

  • The charge is stopped

P1D37
AC input fuse abnormal or AC power supply equipment abnormal

  • The charge is stopped

P1D46
AC input frequency abnormal

  • The charge is stopped

P1D47
AC input voltage sensor range abnormal

  • The charge is stopped

P1D48
AC input voltage sensor (short circuits to power supply)

  • The charge is stopped

P1D49
AC input voltage sensor (short circuits to earth)

  • The charge is stopped

P1D50
AC input voltage sensor 2 (short circuits to power supply)

  • The charge is stopped

P1D51
AC input voltage sensor 2 (short circuits to earth)

  • The charge is stopped

P1D52
Internal circuit abnormal 1

  • The charge is stopped

P1D53
Internal circuit abnormal 2

  • The charge is stopped

U0293
PHEV-ECU CAN time-out

  • The charge is stopped
  • The DC-DC converter output continues.

U1073
Bus-off

  • The charge is stopped