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Home >> Infiniti >> 2020 >> QX50 Essential, 4WD >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Steering Control System (Electric Power Steering) >> Ecu Diagnosis Information >> EPS Control Unit >> Reference Value >> Values On The Diagnosis Tool
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Values On The Diagnosis Tool

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

Engine running

10.5 V - 16 V

STEERING TORQUE

Engine running

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

Approx. 0.0 Nm

Steering wheel: Right turn

Positive value (Nm)

Steering wheel: Left turn

Negative value (Nm)

STEERING ANGLE SIGNAL

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

Approx. 0 deg

Steering wheel: Right turn

Positive value (deg)

Steering wheel: Left turn

Negative value (deg)

STEERING ANGLE SPEED

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

Approx. 0 deg/s

Steering wheel: Right turn

Positive value (deg/s)

Steering wheel: Left turn

Negative value (deg/s)

MOTOR CURRENT

Engine running

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

Target motor current

Engine running

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)

C/U TEMP

Engine running

Displays temperature of inside of EPS control unit [ deg.C]

Assist level

Engine running

100% *2

VEHICLE SPEED

Vehicle stopped

0.00 km/h

While driving

Approximately equal to the indication on speedometer *3

(inside of +/-10%)

WARNING LAMP

Power steering warning lamp: ON

On

Power steering warning lamp: OFF

OFF

STEERING ANGLE SENSOR STATUS

Malfunction in steering angle sensor.

ABNORMAL

No Malfunction in steering angle sensor.

NORMAL

ENGINE STATUS

Engine not running

STOP

Engine running

RUN

Engine cranking

CRANK

HEAT PROTCT STATUS

Ignition switch ON or Engine running

No over heat.

NORMAL

Over heat.

PRTECT

MOTOR REVOLUTION SPEED

Engine running

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

Displays an almost constant value (rpm)

Steering wheel: Right turn

The positive value changes as a steering speed (rpm)

Steering wheel: Left turn

The negative value changes as a steering speed (rpm)

CONTROL MODULE ESTM TEMP

Engine running

Displays temperature of inside of EPS control unit [ deg.C]

Steering mode status

Steering mode: Standard

Standard

Steering mode: Sport

Sport

Steering mode: Touring

Touring

*1: Almost in accordance with the value of "Target motor current". 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 ignition switch in turned ON.