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DATA LIST REFERENCE TABLE
The following items can be read by the scan tool (M.U.T.-III) from the EPS-ECU input data.
 
 
When the system is normal.
Item No.Check itemCheck conditionNormal condition
01Torque sensor (main)
  • Start the engine.
  • Turn the steering wheel with a vehicle stationary.
Center positionApproximately 2.5 V
Steering wheel turned to right2.5 - 4.7 V
Steering wheel turned to left0.3 - 2.5 V
02Torque sensor (sub)
  • Start the engine.
  • Turn the steering wheel with a vehicle stationary.
Center positionApproximately 2.5 V
Steering wheel turned to right2.5 - 0.3 V
Steering wheel turned to left4.7 - 2.5 V
03Torque sensor (power supply)Start the engine.4.7 - 5.3 V
04Motor current
  • Start the engine.
  • Turn the steering wheel to the left and right with a vehicle stationary.
Approximately 82 Arms or less
(When the steering wheel is not operated, approximately battery voltage)
05Motor current (target)
  • Start the engine.
  • Turn the steering wheel to the left and right with a vehicle stationary.
Approximately 82 Arms or less
(When the steering wheel is not operated, approximately battery voltage)
06Motor current (unlimited target)
  • Start the engine.
  • Turn the steering wheel to the left and right with a vehicle stationary.
Approximately 82 Arms or less
07Engine speed
  • Start the engine.
  • Turn the steering wheel to the left and right with a vehicle stationary.
Tachometer displayed value and scan tool (M.U.T.-III) displayed value agree with each other.
08Vehicle speed
  • Start the engine.
  • Turn the steering wheel to the left and right with a vehicle stationary.
Speed meter displayed value and scan tool (M.U.T.-III) displayed value agree with each other.
09Add torque indication status
  • Start the engine.
  • Vehicle stationary.
  • EPS warning light turn off.
Approximately 0 Nm
11IG/Electric motor switchIgnition switch: LOCK (OFF)OFF
Ignition switch: ONON
17Motor electric angle
  • Start the engine.
  • Turn the steering wheel to the left and right with a vehicle stationary.
0 - 360 deg
Motor angle
18Motor speed
  • Start the engine.
  • Turn the steering wheel to the left and right with a vehicle stationary.
Rated value: 1130 rpm (neutral: 0 rpm)
19Motor voltageStart the engine.2.1 - 11.7 V
22Power relay voltageIgnition switch: ONInitialization
Start the engine.Battery positive voltage
23Ignition voltageIgnition switch: ONBattery positive voltage
24Power relayIgnition switch: ONOFF
Start the engine.ON
25Motor relayIgnition switch: ONOFF
Start the engine.ON
A11*Odometer: rec.A1Assist limitation does not occur.Initialization
Assist limitation occurs.Odometer value
A12*Motor current (target): rec.A1Assist limitation does not occur.Initialization
Assist limitation occurs.Current value: 82 Arms or less
A13*Motor cur. (unltd target): rec.A1Assist limitation does not occur.Initialization
Assist limitation occurs.Current value (before the assist limitation)
A14*Motor current: rec.A1Assist limitation does not occur.Initialization
Assist limitation occurs.Actual current value
A15*Vehicle speed: rec.A1Assist limitation does not occur.Initialization
Assist limitation occurs.CAN vehicle speed
A21*Odometer: rec.A2Assist limitation does not occur.Initialization
Assist limitation occurs.Odometer value
A22*Motor current (target): rec.A2Assist limitation does not occur.Initialization
Assist limitation occurs.Current value: 82 Arms or less
A23*Motor cur. (unltd target): rec.A2Assist limitation does not occur.Initialization
Assist limitation occurs.Current value (before the assist limitation)
A24*Motor current: rec.A2Assist limitation does not occur.Initialization
Assist limitation occurs.Actual current value
A25*Vehicle speed: rec.A2Assist limitation does not occur.Initialization
Assist limitation occurs.CAN vehicle speed
A31*Odometer: rec.A3Assist limitation does not occur.Initialization
Assist limitation occurs.Odometer value
A32*Motor current (target): rec.A3Assist limitation does not occur.Initialization
Assist limitation occurs.Current value: 82 Arms or less
A33*Motor cur. (unltd target): rec.A3Assist limitation does not occur.Initialization
Assist limitation occurs.Current value (before the assist limitation)
A34*Motor current: rec.A3Assist limitation does not occur.Initialization
Assist limitation occurs.Actual current value
A35*Vehicle speed: rec.A3Assist limitation does not occur.Initialization
Assist limitation occurs.CAN vehicle speed
A41*Odometer: rec.A4Assist limitation does not occur.Initialization
Assist limitation occurs.Odometer value
A42*Motor current (target): rec.A4Assist limitation does not occur.Initialization
Assist limitation occurs.Current value: 82 Arms or less
A43*Motor cur. (unltd target): rec.A4Assist limitation does not occur.Initialization
Assist limitation occurs.Current value (before the assist limitation)
A44*Motor current: rec.A4Assist limitation does not occur.Initialization
Assist limitation occurs.Actual current value
A45*Vehicle speed: rec.A4Assist limitation does not occur.Initialization
Assist limitation occurs.CAN vehicle speed
A51*Odometer: rec.A5Assist limitation does not occur.Initialization
Assist limitation occurs.Odometer value
A52*Motor current (target): rec.A5Assist limitation does not occur.Initialization
Assist limitation occurs.Current value: 82 Arms or less
A53*Motor cur. (unltd target): rec.A5Assist limitation does not occur.Initialization
Assist limitation occurs.Current value (before the assist limitation)
A54*Motor current: rec.A5Assist limitation does not occur.Initialization
Assist limitation occurs.Actual current value
A55*Vehicle speed: rec.A5Assist limitation does not occur.Initialization
Assist limitation occurs.CAN vehicle speed
B11*Odometer: rec.V1Battery voltage down does not occur.Initialization
Battery voltage down occurs.Odometer value when battery voltage down occurs.
B12*Power relay voltage: rec V1Battery voltage down does not occur.Initialization
Battery voltage down occurs.Relay contact voltage
B13*Vehicle speed: rec.V1Battery voltage down does not occur.Initialization
Battery voltage down occurs.Vehicle speed when battery voltage down occurs.
B21*Odometer: rec.V2Battery voltage down does not occur.Initialization
Battery voltage down occurs.Odometer value when battery voltage down occurs.
B22*Power relay voltage: rec V2Battery voltage down does not occur.Initialization
Battery voltage down occurs.Relay contact voltage
B23*Vehicle speed: rec.V2Battery voltage down does not occur.Initialization
Battery voltage down occurs.Vehicle speed when battery voltage down occurs.
B31*Odometer: rec.V3Battery voltage down does not occur.Initialization
Battery voltage down occurs.Odometer value when battery voltage down occurs.
B32*Power relay voltage: rec V3Battery voltage down does not occur.Initialization
Battery voltage down occurs.Relay contact voltage
B33*Vehicle speed: rec.V3Battery voltage down does not occur.Initialization
Battery voltage down occurs.Vehicle speed when battery voltage down occurs.
B41*Odometer: rec.V4Battery voltage down does not occur.Initialization
Battery voltage down occurs.Odometer value when battery voltage down occurs.
B42*Power relay voltage: rec V4Battery voltage down does not occur.Initialization
Battery voltage down occurs.Relay contact voltage
B43*Vehicle speed: rec.V4Battery voltage down does not occur.Initialization
Battery voltage down occurs.Vehicle speed when battery voltage down occurs.
B51*Odometer: rec.V5Battery voltage down does not occur.Initialization
Battery voltage down occurs.Odometer value when battery voltage down occurs.
B52*Power relay voltage: rec V5Battery voltage down does not occur.Initialization
Battery voltage down occurs.Relay contact voltage
B53*Vehicle speed: rec.V5Battery voltage down does not occur.Initialization
Battery voltage down occurs.Vehicle speed when battery voltage down occurs.
note*: The service data which begins with A or B must be used when the steering has become heavy without setting any diagnostic trouble code. If assist functions are not intervened or the battery voltage is not dropped, the scan tool (M.U.T.-III) displays an abnormal value. But there is no fault.

 
 
When the EPS-ECU shut off electric power steering system operation.
When the diagnosis system stops the EPS-ECU, the scan tool (M.U.T.-III) display data will be unreliable.