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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 rightApproximately 2.4 to 4.7 V
Steering wheel turned to leftApproximately 0.3 to 2.6 V
02Torque sensor(sub)
  • Start the engine.
  • Turn the steering wheel with a vehicle stationary.
Center positionApproximately 2.5 V
Steering wheel turned to rightApproximately 0.3 to 2.6 V
Steering wheel turned to leftApproximately 2.4 to 4.7 V
03Torque sensor(power supply)Start the engine.Approximately 5 V
04Motor current
  • Start the engine.
  • Turn the steering wheel to the left and right with a vehicle stationary.
Approximately 40 A or less
05Motor current(target)
  • Start the engine.
  • Turn the steering wheel to the left and right with a vehicle stationary.
Approximately 40 A or less
06Motor current (unlimited target)
  • Start the engine.
  • Turn the steering wheel to the left and right with a vehicle stationary.
Approximately 40 A 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 MB991958 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 MB991958 displayed value agree with each other.
11Ignition switchIgnition switch: "LOCK" (OFF)CAN communication error
Ignition switch: "ON"ON
19Motor terminal voltage (+)Start the engine.Approximately system voltage
20Motor terminal voltage (-)Start the engine.Approximately system voltage
22Power relay voltageIgnition switch: "ON"Initialization
Start the engine.Battery voltage
23Ignition voltageIgnition switch: "ON"Battery voltage
24Power relayIgnition switch: "ON"OFF
Start the engine.ON
25Motor relayIgnition switch: "ON"OFF
Start the engine.ON
A11Odometer :rec.A1Assist limitation does not occur.Initialization
Assist limitation occurs.Odometer value *1
A12Motor current(target) :rec.A1Assist limitation does not occur.Initialization
Assist limitation occurs.Current value: Approximately 40 A or less *1
A13Motor cur.(unltd target) :rec.A1Assist limitation does not occur.Initialization
Assist limitation occurs.Current value (before the assist limitation) *1
A14Motor current :rec.A1Assist limitation does not occur.Initialization
Assist limitation occurs.Actual current value *1
A15Vehicle speed :rec.A1Assist limitation does not occur.Initialization
Assist limitation occurs.CAN vehicle speed *1
A21Odometer :rec.A2Assist limitation does not occur.Initialization
Assist limitation occurs.Odometer value *1
A22Motor current(target) :rec.A2Assist limitation does not occur.Initialization
Assist limitation occurs.Current value: Approximately 40 A or less *1
A23Motor cur.(unltd target) :rec.A2Assist limitation does not occur.Initialization
Assist limitation occurs.Current value (before the assist limitation) *1
A24Motor current :rec.A2Assist limitation does not occur.Initialization
Assist limitation occurs.Actual current value *1
A25Vehicle speed :rec.A2Assist limitation does not occur.Initialization
Assist limitation occurs.CAN vehicle speed *1
A31Odometer :rec.A3Assist limitation does not occur.Initialization
Assist limitation occurs.Odometer value *1
A32Motor current(target) :rec.A3Assist limitation does not occur.Initialization
Assist limitation occurs.Current value: Approximately 40 A or less *1
A33Motor cur.(unltd target) :rec.A3Assist limitation does not occur.Initialization
Assist limitation occurs.Current value (before the assist limitation) *1
A34Motor current :rec.A3Assist limitation does not occur.Initialization
Assist limitation occurs.Actual current value *1
A35Vehicle speed :rec.A3Assist limitation does not occur.Initialization
Assist limitation occurs.CAN vehicle speed *1
A41Odometer :rec.A4Assist limitation does not occur.Initialization
Assist limitation occurs.Odometer value *1
A42Motor current(target) :rec.A4Assist limitation does not occur.Initialization
Assist limitation occurs.Current value: Approximately 40 A or less *1
A43Motor cur.(unltd target) :rec.A4Assist limitation does not occur.Initialization
Assist limitation occurs.Current value (before the assist limitation) *1
A44Motor current :rec.A4Assist limitation does not occur.Initialization
Assist limitation occurs.Actual current value *1
A45Vehicle speed :rec.A4Assist limitation does not occur.Initialization
Assist limitation occurs.CAN vehicle speed *1
A51Odometer :rec.A5Assist limitation does not occur.Initialization
Assist limitation occurs.Odometer value *1
A52Motor current(target) :rec.A5Assist limitation does not occur.Initialization
Assist limitation occurs.Current value: Approximately 40 A or less *1
A53Motor cur.(unltd target) :rec.A5Assist limitation does not occur.Initialization
Assist limitation occurs.Current value (before the assist limitation) *1
A54Motor current :rec.A5Assist limitation does not occur.Initialization
Assist limitation occurs.Actual current value *1
A55Vehicle speed :rec.A5Assist limitation does not occur.Initialization
Assist limitation occurs.CAN vehicle speed *1
B11Odometer :rec.V1Battery voltage down does not occur.Initialization
Battery voltage down occurs.Odometer value when battery voltage down occurs. *1
B12Power relay voltage :rec V1Battery voltage down does not occur.Initialization
Battery voltage down occurs.Relay contact voltage *1
B13Vehicle speed :rec.V1Battery voltage down does not occur.Initialization
Battery voltage down occurs.Vehicle speed when battery voltage down occurs. *1
B21Odometer :rec.V2Battery voltage down does not occur.Initialization
Battery voltage down occurs.Odometer value when battery voltage down occurs. *1
B22Power relay voltage :rec V2Battery voltage down does not occur.Initialization
Battery voltage down occurs.Relay contact voltage *1
B23Vehicle speed :rec.V2Battery voltage down does not occur.Initialization
Battery voltage down occurs.Vehicle speed when battery voltage down occurs. *1
B31Odometer :rec.V3Battery voltage down does not occur.Initialization
Battery voltage down occurs.Odometer value when battery voltage down occurs. *1
B32Power relay voltage :rec V3Battery voltage down does not occur.Initialization
Battery voltage down occurs.Relay contact voltage *1
B33Vehicle speed :rec.V3Battery voltage down does not occur.Initialization
Battery voltage down occurs.Vehicle speed when battery voltage down occurs. *1
B41Odometer :rec.V4Battery voltage down does not occur.Initialization
Battery voltage down occurs.Odometer value when battery voltage down occurs. *1
B42Power relay voltage :rec V4Battery voltage down does not occur.Initialization
Battery voltage down occurs.Relay contact voltage *1
B43Vehicle speed :rec.V4Battery voltage down does not occur.Initialization
Battery voltage down occurs.Vehicle speed when battery voltage down occurs. *1
B51Odometer :rec.V5Battery voltage down does not occur.Initialization
Battery voltage down occurs.Odometer value when battery voltage down occurs. *1
B52Power relay voltage :rec V5Battery voltage down does not occur.Initialization
Battery voltage down occurs.Relay contact voltage *1
B53Vehicle speed :rec.V5Battery voltage down does not occur.Initialization
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 scan tool (M.U.T.-III) display data will be unreliable.