DATA LIST REFERENCE TABLE


The following items can be read by the M.U.T.-III from the EPS-ECU input data.

When the system is normal.


Item No.
 Check item
 Check condition
 Normal condition
01
 Torque sensor (main)
  • Start the engine.
  • Turn the steering wheel with a vehicle stationary.

 Centre position
 Approximately 2.5 V
Steering wheel turned to right
 Approximately 0.3 to 2.6 V
Steering wheel turned to left
 Approximately 2.4 to 4.7 V
02
 Torque sensor (sub)
  • Start the engine.
  • Turn the steering wheel with a vehicle stationary.

 Centre position
 Approximately 2.5 V
Steering wheel turned to right
 Approximately 2.4 to 4.7 V
Steering wheel turned to left
 Approximately 0.3 to 2.6 V
03
 Torque sensor (power supply)
 Start the engine.
 Approximately 5 V
04
 Motor current
  • Start the engine.
  • Turn the steering wheel to the left and right with a vehicle stationary.

 Approximately 40 A or less
05
 Motor current (target)
  • Start the engine.
  • Turn the steering wheel to the left and right with a vehicle stationary.

 Approximately 40 A or less
06
 Motor current (unlimited target)
  • Start the engine.
  • Turn the steering wheel to the left and right with a vehicle stationary.

 Approximately 40 A or less
07
 Engine speed
  • Start the engine.
  • Turn the steering wheel to the left and right with a vehicle stationary.

 Tachometer displayed value and M.U.T.-III displayed value agree with each other.
08
 Vehicle speed
  • Start the engine.
  • Turn the steering wheel to the left and right with a vehicle stationary.

 Speed meter displayed value and M.U.T.-III displayed value agree with each other.
11
 Ignition switch
 Ignition switch: "LOCK" (OFF)
 CAN communication error
Ignition switch: "ON"
 ON
19
 Motor terminal voltage (+)
 Start the engine.
 Approximately system voltage
20
 Motor terminal voltage (-)
 Start the engine.
 Approximately system voltage
22
 Power relay voltage
 Ignition switch: "ON"
 Initialisation
Start the engine.
 Battery voltage
23
 Ignition voltage
 Ignition switch: "ON"
 Battery voltage
24
 Power relay
 Ignition switch: "ON"
 OFF
Start the engine.
 ON
25
 Motor relay
 Ignition switch: "ON"
 OFF
Start the engine.
 ON
A11
 Odometer :rec.A1
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 Odometer value *1
A12
 Motor current (target) :rec.A1
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 Current value: Approximately 40 A or less *1
A13
 Motor cur. (unltd target) :rec.A1
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 Current value (before the assist limitation) *1
A14
 Motor current :rec.A1
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 Actual current value *1
A15
 Vehicle speed :rec.A1
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 CAN vehicle speed *1
A21
 Odometer :rec.A2
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 Odometer value *1
A22
 Motor current (target) :rec.A2
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 Current value: Approximately 40 A or less *1
A23
 Motor cur. (unltd target) :rec.A2
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 Current value (before the assist limitation) *1
A24
 Motor current :rec.A2
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 Actual current value *1
A25
 Vehicle speed :rec.A2
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 CAN vehicle speed *1
A31
 Odometer :rec.A3
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 Odometer value *1
A32
 Motor current (target) :rec.A3
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 Current value: Approximately 40 A or less *1
A33
 Motor cur. (unltd target) :rec.A3
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 Current value (before the assist limitation) *1
A34
 Motor current :rec.A3
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 Actual current value *1
A35
 Vehicle speed :rec.A3
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 CAN vehicle speed *1
A41
 Odometer :rec.A4
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 Odometer value *1
A42
 Motor current (target) :rec.A4
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 Current value: Approximately 40 A or less *1
A43
 Motor cur. (unltd target) :rec.A4
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 Current value (before the assist limitation) *1
A44
 Motor current :rec.A4
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 Actual current value *1
A45
 Vehicle speed :rec.A4
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 CAN vehicle speed *1
A51
 Odometer :rec.A5
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 Odometer value *1
A52
 Motor current (target) :rec.A5
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 Current value: Approximately 40 A or less *1
A53
 Motor cur. (unltd target) :rec.A5
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 Current value (before the assist limitation) *1
A54
 Motor current :rec.A5
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 Actual current value *1
A55
 Vehicle speed :rec.A5
 Assist limitation does not occur.
 Initialisation
Assist limitation occurs.
 CAN vehicle speed *1
B11
 Odometer :rec.V1
 Battery voltage down does not occur.
 Initialisation
Battery voltage down occurs.
 Odometer value when battery voltage down occurs. *1
B12
 Power relay voltage :rec V1
 Battery voltage down does not occur.
 Initialisation
Battery voltage down occurs.
 Relay contact voltage *1
B13
 Vehicle speed :rec.V1
 Battery voltage down does not occur.
 Initialisation
Battery voltage down occurs.
 Vehicle speed when battery voltage down occurs. *1
B21
 Odometer :rec.V2
 Battery voltage down does not occur.
 Initialisation
Battery voltage down occurs.
 Odometer value when battery voltage down occurs. *1
B22
 Power relay voltage :rec V2
 Battery voltage down does not occur.
 Initialisation
Battery voltage down occurs.
 Relay contact voltage *1
B23
 Vehicle speed :rec.V2
 Battery voltage down does not occur.
 Initialisation
Battery voltage down occurs.
 Vehicle speed when battery voltage down occurs. *1
B31
 Odometer :rec.V3
 Battery voltage down does not occur.
 Initialisation
Battery voltage down occurs.
 Odometer value when battery voltage down occurs. *1
B32
 Power relay voltage :rec V3
 Battery voltage down does not occur.
 Initialisation
Battery voltage down occurs.
 Relay contact voltage *1
B33
 Vehicle speed :rec.V3
 Battery voltage down does not occur.
 Initialisation
Battery voltage down occurs.
 Vehicle speed when battery voltage down occurs. *1
B41
 Odometer :rec.V4
 Battery voltage down does not occur.
 Initialisation
Battery voltage down occurs.
 Odometer value when battery voltage down occurs. *1
B42
 Power relay voltage :rec V4
 Battery voltage down does not occur.
 Initialisation
Battery voltage down occurs.
 Relay contact voltage *1
B43
 Vehicle speed :rec.V4
 Battery voltage down does not occur.
 Initialisation
Battery voltage down occurs.
 Vehicle speed when battery voltage down occurs. *1
B51
 Odometer :rec.V5
 Battery voltage down does not occur.
 Initialisation
Battery voltage down occurs.
 Odometer value when battery voltage down occurs. *1
B52
 Power relay voltage :rec V5
 Battery voltage down does not occur.
 Initialisation
Battery voltage down occurs.
 Relay contact voltage *1
B53
 Vehicle speed :rec.V5
 Battery voltage down does not occur.
 Initialisation
Battery voltage down occurs.
 Vehicle speed when battery voltage down occurs. *1
note *1: A default value will be shown, but this is not a malfunction.

When the EPS-ECU shut off electric power steering system operation.


When the diagnosis system stops the EPS-ECU, the M.U.T.-III display data will be unreliable.