DATA LIST REFERENCE TABLE


M.U.T.-III can read the following items among various control data (input data from each ECU and switch) used by the electronic control 4WD system.

THE SYSTEM IS NORMAL.


Item No.
Check items
Check conditions
Normal conditions
01
Vehicle speed (4WD calculated value)
Perform a test run of the vehicle.
The speedometer display and the M.U.T.-III display almost agree with each other.
02
Ignition power supply voltage
Ignition switch: ON
0 to 16 V
03
Coupling torque
Ignition switch: ON
0 to 1200 N·m
04
Coupling current (command value)

  • Drive mode selector: 4WD
  • Perform a test run of the vehicle.

The current changes between 0 and 5 A. (Command value and actual value agree with each other.)
05
Coupling current (monitor value)

  • Drive mode selector: 4WD
  • Perform a test run of the vehicle.

The current changes between 0 and 5 A. (Command value and actual value agree with each other.)
06
Coupling temperature
Perform a test run of the vehicle.
0 to 200°C
07
CAN system (ABS/ASC)
Ignition switch: ON
When ASC-ECU data is correctly received
OK
When ASC-ECU data reception error occurs
No reception
08
CAN system (engine)
Ignition switch: ON
When engine-ECU data is correctly received
OK
When engine-ECU data reception error occurs
No reception
09
CAN system (ETACS)
Ignition switch: ON
When ETACS-ECU data is correctly received
OK
When ETACS-ECU data reception error occurs
No reception
10
2WD SW
Ignition switch: ON
Drive mode selector: 2WD
OFF/ON
11
LOCK SW
Ignition switch: ON
Drive mode selector: LOCK
OFF/ON
15
4WD mode
Ignition switch: ON
Shifting in progress
-
4WD LOW
4WD HIGH
2WD
Neutral
4WD (part-time)
16
FL wheel speed sensor
Perform a test run of the vehicle.
Check that there is difference between the right wheel speed and the left wheel speed when the vehicle turns.
The speedometer display and the M.U.T.-III display almost agree with each other.
17
FR wheel speed sensor
18
RL wheel speed sensor
19
RR wheel speed sensor
21
Engine speed
Perform a test run of the vehicle.
The tachometer display and the M.U.T.-III display almost agree with each other.
23
Ignition position

  • LOCK
  • OFF
  • ACC
  • ON
  • START

-
24
Engine torque
Perform a test run of the vehicle.
The torque changes between 0 and 300 N·m.
26
Throttle position
Ignition switch: ON
Release the accelerator pedal.
Approximately 0%
Gradually depress the accelerator pedal.
0 - 100%
Fully depress the accelerator pedal.
Approximately 100% (within 100%)
28
Limited torque
-
0 to 2500 N·m

SYSTEM SHUT-DOWN


M.U.T.-III display data does not agree with the actual data when 4WD-ECU deactivates the 4WD control function by the fail-safe function.