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.

Scan tool (M.U.T.-III) display

Check condition

Normal condition

01

Torque sensor (main)

Start the engine.
Turn the steering wheel with a vehicle stationary.

Center 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

02

Torque sensor (sub)

Start the engine.
Turn the steering wheel with a vehicle stationary.

Center 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

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 scan tool (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 scan tool (M.U.T.-III) displayed value agree with each other.

11

Ignition switch

Ignition switch: "LOCK" (OFF)

OFF

Ignition switch: "ON"

ON

19

Motor terminal voltage (+)

Start the engine.

Approximately battery positive voltage

20

Motor terminal voltage (-)

Start the engine.

Approximately battery positive voltage

22

Power relay voltage

Ignition switch: "ON"

Invalid

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.

Invalid

Assist limitation occurs.

Odometer value ⁽¹⁾

A12

Motor current (target): rec.A1

Assist limitation does not occur.

Invalid

Assist limitation occurs.

Current value: Approximately 40 A or less ⁽¹⁾

A13

Motor cur. (unltd target): rec.A1

Assist limitation does not occur.

Invalid

Assist limitation occurs.

Current value (before the assist limitation) ⁽¹⁾

A14

Motor current: rec.A1

Assist limitation does not occur.

Invalid

Assist limitation occurs.

Actual current value ⁽¹⁾

A15

Vehicle speed: rec.A1

Assist limitation does not occur.

Invalid

Assist limitation occurs.

CAN vehicle speed ⁽¹⁾

A21

Odometer: rec.A2

Assist limitation does not occur.

Invalid

Assist limitation occurs.

Odometer value ⁽¹⁾

A22

Motor current (target): rec.A2

Assist limitation does not occur.

Invalid

Assist limitation occurs.

Current value: Approximately 40 A or less ⁽¹⁾

A23

Motor cur. (unltd target): rec.A2

Assist limitation does not occur.

Invalid

Assist limitation occurs.

Current value (before the assist limitation) ⁽¹⁾

A24

Motor current: rec.A2

Assist limitation does not occur.

Invalid

Assist limitation occurs.

Actual current value ⁽¹⁾

A25

Vehicle speed: rec.A2

Assist limitation does not occur.

Invalid

Assist limitation occurs.

CAN vehicle speed ⁽¹⁾

A31

Odometer: rec.A3

Assist limitation does not occur.

Invalid

Assist limitation occurs.

Odometer value ⁽¹⁾

A32

Motor current (target): rec.A3

Assist limitation does not occur.

Invalid

Assist limitation occurs.

Current value: Approximately 40 A or less ⁽¹⁾

A33

Motor cur. (unltd target): rec.A3

Assist limitation does not occur.

Invalid

Assist limitation occurs.

Current value (before the assist limitation) ⁽¹⁾

A34

Motor current: rec.A3

Assist limitation does not occur.

Invalid

Assist limitation occurs.

Actual current value ⁽¹⁾

A35

Vehicle speed: rec.A3

Assist limitation does not occur.

Invalid

Assist limitation occurs.

CAN vehicle speed ⁽¹⁾

A41

Odometer: rec.A4

Assist limitation does not occur.

Invalid

Assist limitation occurs.

Odometer value ⁽¹⁾

A42

Motor current (target): rec.A4

Assist limitation does not occur.

Invalid

Assist limitation occurs.

Current value: Approximately 40 A or less ⁽¹⁾

A43

Motor cur. (unltd target): rec.A4

Assist limitation does not occur.

Invalid

Assist limitation occurs.

Current value (before the assist limitation) ⁽¹⁾

A44

Motor current: rec.A4

Assist limitation does not occur.

Invalid

Assist limitation occurs.

Actual current value ⁽¹⁾

A45

Vehicle speed: rec.A4

Assist limitation does not occur.

Invalid

Assist limitation occurs.

CAN vehicle speed ⁽¹⁾

A51

Odometer: rec.A5

Assist limitation does not occur.

Invalid

Assist limitation occurs.

Odometer value ⁽¹⁾

A52

Motor current (target): rec.A5

Assist limitation does not occur.

Invalid

Assist limitation occurs.

Current value: Approximately 40 A or less ⁽¹⁾

A53

Motor cur. (unltd target): rec.A5

Assist limitation does not occur.

Invalid

Assist limitation occurs.

Current value (before the assist limitation) ⁽¹⁾

A54

Motor current: rec.A5

Assist limitation does not occur.

Invalid

Assist limitation occurs.

Actual current value ⁽¹⁾

A55

Vehicle speed: rec.A5

Assist limitation does not occur.

Invalid

Assist limitation occurs.

CAN vehicle speed ⁽¹⁾

B11

Odometer: rec.V1

Battery voltage down does not occur.

Invalid

Battery voltage down occurs.

Odometer value when battery voltage down occurs. ⁽¹⁾

B12

Power relay voltage: rec V1

Battery voltage down does not occur.

Invalid

Battery voltage down occurs.

Relay contact voltage ⁽¹⁾

B13

Vehicle speed: rec.V1

Battery voltage down does not occur.

Invalid

Battery voltage down occurs.

Vehicle speed when battery voltage down occurs. ⁽¹⁾

B21

Odometer: rec.V2

Battery voltage down does not occur.

Invalid

Battery voltage down occurs.

Odometer value when battery voltage down occurs. ⁽¹⁾

B22

Power relay voltage: rec V2

Battery voltage down does not occur.

Invalid

Battery voltage down occurs.

Relay contact voltage ⁽¹⁾

B23

Vehicle speed: rec.V2

Battery voltage down does not occur.

Invalid

Battery voltage down occurs.

Vehicle speed when battery voltage down occurs. ⁽¹⁾

B31

Odometer: rec.V3

Battery voltage down does not occur.

Invalid

Battery voltage down occurs.

Odometer value when battery voltage down occurs. ⁽¹⁾

B32

Power relay voltage: rec V3

Battery voltage down does not occur.

Invalid

Battery voltage down occurs.

Relay contact voltage ⁽¹⁾

B33

Vehicle speed: rec.V3

Battery voltage down does not occur.

Invalid

Battery voltage down occurs.

Vehicle speed when battery voltage down occurs. ⁽¹⁾

B41

Odometer: rec.V4

Battery voltage down does not occur.

Invalid

Battery voltage down occurs.

Odometer value when battery voltage down occurs. ⁽¹⁾

B42

Power relay voltage: rec V4

Battery voltage down does not occur.

Invalid

Battery voltage down occurs.

Relay contact voltage ⁽¹⁾

B43

Vehicle speed: rec.V4

Battery voltage down does not occur.

Invalid

Battery voltage down occurs.

Vehicle speed when battery voltage down occurs. ⁽¹⁾

B51

Odometer: rec.V5

Battery voltage down does not occur.

Invalid

Battery voltage down occurs.

Odometer value when battery voltage down occurs. ⁽¹⁾

B52

Power relay voltage: rec V5

Battery voltage down does not occur.

Invalid

Battery voltage down occurs.

Relay contact voltage ⁽¹⁾

B53

Vehicle speed: rec.V5

Battery voltage down does not occur.

Invalid

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.