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Home >> Nissan-Datsun >> 2021 >> Leaf SL Plus >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Steering Control System >> Ecu Diagnosis Information >> EPS Control Unit >> Values On The Diagnosis Tool
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Values On The Diagnosis Tool

CAUTION: The output signal indicates the EPS control unit calculation data. The normal values will be displayed even in the event that the output circuit (harness) is open.
NOTE: The following table includes information (items) inapplicable to this vehicle. For information (items) applicable to this vehicle, refer to CONSULT display items.

Monitor item

Data monitor

Condition

Display value

BATTERY VOLT

Power switch: ON

Battery voltage

TORQUE SENSOR

Vehicle set to READY

Steering wheel: Not steering (There is no steering force)

Approx. 0 Nm

Steering wheel: Right turn

Positive value (Nm)

Steering wheel: Left turn

Negative value (Nm)

MOTOR CURRENT

Vehicle set to READY

Steering wheel: Not steering (There is no steering force)

Approx. 0 A

Steering wheel: Right or left turn

Displays consumption current of EPS motor (A) *1

MOTOR SIG

Vehicle set to READY

Steering wheel: Not steering (There is no steering force)

Approx. 0 A

Steering wheel: Right turn

Positive value (A)

Steering wheel: Left turn

Negative value (A)

ASSIST TORQUE

Vehicle set to READY

Steering wheel: Not steering (There is no steering force)

Approx. 0 Nm

Steering wheel: Right or left turn

Displays assist torque of EPS motor (Nm)

C/U TEMP

Power switch ON or vehicle set to READY

Displays temperature of inside of EPS control unit (deg.C) or (deg.F)

ASSIST LEVEL

Vehicle set to READY

100 % *2

VEHICLE SPEED

Vehicle stopped

0 km/h (0 mph)

While driving

Approximately equal to the indication on speedometer *3

(inside of +/-10%)

WARNING LAMP

EPS warning lamp: ON

On

EPS warning lamp: OFF

Off

*1: Almost in accordance with the value of "MOTOR SIG". It is not a malfunction though these values are not accorded when steering quickly.

*2: Normally displays 100%. In case of an excessive stationary steering, the assist curvature gradually falls. However, it returns to 100% when left standing.

*3: It is not a malfunction, though it might not be corresponding just after power switch is pressed ON.