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DATA LIST REFERENCE TABLE
The following items can be read by the scan tool MB991958 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
(When the steering wheel is not operated, approximately battery voltage)
07Engine speed
  • Start the engine.
  • Turn the steering wheel to the left and right with a vehicle stationary.
Tachometer displayed value and scan tool 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 displayed value agree with each other.
09*Add torque indication status--
11IG/Electric motor switchIgnition switch: LOCK (OFF)CAN communication error
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: ONFFh
Start the engine.Battery voltage
23Ignition voltageIgnition switch: ONBattery voltage
24Power relayIgnition switch: ONOFF
Start the engine.ON
25Motor relayIgnition switch: ONOFF
Start the engine.ON
A11Odometer :rec.A1Assist limitation does not occur.FFh
Assist limitation occurs.Odometer value
A12Motor current (target) :rec.A1Assist limitation does not occur.FFh
Assist limitation occurs.Current value: 82 Arms or less
A13Motor cur. (unltd target) :rec.A1Assist limitation does not occur.FFh
Assist limitation occurs.Current value (before the assist limitation)
A14Motor current :rec.A1Assist limitation does not occur.FFh
Assist limitation occurs.Actual current value
A15Vehicle speed :rec.A1Assist limitation does not occur.FFh
Assist limitation occurs.CAN vehicle speed
A21Odometer :rec.A2Assist limitation does not occur.FFh
Assist limitation occurs.Odometer value
A22Motor current (target) :rec.A2Assist limitation does not occur.FFh
Assist limitation occurs.Current value: 82 Arms or less
A23Motor cur. (unltd target) :rec.A2Assist limitation does not occur.FFh
Assist limitation occurs.Current value (before the assist limitation)
A24Motor current :rec.A2Assist limitation does not occur.FFh
Assist limitation occurs.Actual current value
A25Vehicle speed :rec.A2Assist limitation does not occur.FFh
Assist limitation occurs.CAN vehicle speed
A31Odometer :rec.A3Assist limitation does not occur.FFh
Assist limitation occurs.Odometer value
A32Motor current (target) :rec.A3Assist limitation does not occur.FFh
Assist limitation occurs.Current value: 82 Arms or less
A33Motor cur. (unltd target) :rec.A3Assist limitation does not occur.FFh
Assist limitation occurs.Current value (before the assist limitation)
A34Motor current :rec.A3Assist limitation does not occur.FFh
Assist limitation occurs.Actual current value
A35Vehicle speed :rec.A3Assist limitation does not occur.FFh
Assist limitation occurs.CAN vehicle speed
A41Odometer :rec.A4Assist limitation does not occur.FFh
Assist limitation occurs.Odometer value
A42Motor current (target) :rec.A4Assist limitation does not occur.FFh
Assist limitation occurs.Current value: 82 Arms or less
A43Motor cur. (unltd target) :rec.A4Assist limitation does not occur.FFh
Assist limitation occurs.Current value (before the assist limitation)
A44Motor current :rec.A4Assist limitation does not occur.FFh
Assist limitation occurs.Actual current value
A45Vehicle speed :rec.A4Assist limitation does not occur.FFh
Assist limitation occurs.CAN vehicle speed
A51Odometer :rec.A5Assist limitation does not occur.FFh
Assist limitation occurs.Odometer value
A52Motor current (target) :rec.A5Assist limitation does not occur.FFh
Assist limitation occurs.Current value: 82 Arms or less
A53Motor cur. (unltd target) :rec.A5Assist limitation does not occur.FFh
Assist limitation occurs.Current value (before the assist limitation)
A54Motor current :rec.A5Assist limitation does not occur.FFh
Assist limitation occurs.Actual current value
A55Vehicle speed :rec.A5Assist limitation does not occur.FFh
Assist limitation occurs.CAN vehicle speed
B11Odometer :rec.V1Battery voltage down does not occur.FFh
Battery voltage down occurs.Odometer value when battery voltage down occurs.
B12Power relay voltage :rec V1Battery voltage down does not occur.FFh
Battery voltage down occurs.Relay contact voltage
B13Vehicle speed :rec.V1Battery voltage down does not occur.FFh
Battery voltage down occurs.Vehicle speed when battery voltage down occurs.
B21Odometer :rec.V2Battery voltage down does not occur.FFh
Battery voltage down occurs.Odometer value when battery voltage down occurs.
B22Power relay voltage :rec V2Battery voltage down does not occur.FFh
Battery voltage down occurs.Relay contact voltage
B23Vehicle speed :rec.V2Battery voltage down does not occur.FFh
Battery voltage down occurs.Vehicle speed when battery voltage down occurs.
B31Odometer :rec.V3Battery voltage down does not occur.FFh
Battery voltage down occurs.Odometer value when battery voltage down occurs.
B32Power relay voltage :rec V3Battery voltage down does not occur.FFh
Battery voltage down occurs.Relay contact voltage
B33Vehicle speed :rec.V3Battery voltage down does not occur.FFh
Battery voltage down occurs.Vehicle speed when battery voltage down occurs.
B41Odometer :rec.V4Battery voltage down does not occur.FFh
Battery voltage down occurs.Odometer value when battery voltage down occurs.
B42Power relay voltage :rec V4Battery voltage down does not occur.FFh
Battery voltage down occurs.Relay contact voltage
B43Vehicle speed :rec.V4Battery voltage down does not occur.FFh
Battery voltage down occurs.Vehicle speed when battery voltage down occurs.
B51Odometer :rec.V5Battery voltage down does not occur.FFh
Battery voltage down occurs.Odometer value when battery voltage down occurs.
B52Power relay voltage :rec V5Battery voltage down does not occur.FFh
Battery voltage down occurs.Relay contact voltage
B53Vehicle speed :rec.V5Battery voltage down does not occur.FFh
Battery voltage down occurs.Vehicle speed when battery voltage down occurs.
note*: Not used.

 
 
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.