Nissan Murano: Steering Control System :: System Description / Diagnosis System (power Steering Control Module)

Nissan Murano (Z52) 2015-2024 Service Manual / Steering / Steering Control System :: System Description / Diagnosis System (power Steering Control Module)

CONSULT Function

CAUTION:

After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go to "sleep mode", potentially causing a discharged battery and a no-start condition.

FUNCTION

CONSULT can display each diagnostic item using the diagnostic test modes shown as per the following:

Diagnostic test mode	Function
ECU Identification	The part number stored in the control unit can be read.
Self Diagnostic Result	Self diagnostic results and freeze frame data can be read and erased quickly.
Data Monitor	Input/Output data in the power steering control module can be read.

ECU IDENTIFICATION

Displays the part number stored in the control unit.

SELF DIAGNOSTIC RESULT MODE

Refer to DTC Index.

When “CRNT” is displayed on "Self Diagnostic Result"

The system is presently malfunctioning.

When “PAST” is displayed on "Self Diagnostic Result"

System malfunction from the past is detected, but the system is presently normal.

DATA MONITOR MODE

NOTE:

The following table includes information (items) inapplicable to this Nissan Murano vehicle: For information (items) applicable to this vehicle, refer to CONSULT display items.

Monitor item (Unit)	Remarks
BATTERY VOLT (V)	Displays the power supply voltage for power steering control module.
STEERING ANGLE (deg)	Displays the steering angle based on the steering angle signal transmitted via CAN communications.
STR ANG SPD (deg/s)	Displays the steering angle speed based on the steering angle signal transmitted via CAN communications.
MOTOR CURRENT (A)	Displays the current value consumed by power steering control module.
MTR REV SPD COMM (rpm)	Displays the power steering motor speed command value.
MTR REV SPD (rpm)	Displays the power steering motor speed.
C/U TEMP (°F or °C)	Displays the temperature of the power steering control module.
C/U TEMP A (°F or °C)	Displays the temperature of the power steering control module.
MTR ASSIST (%)	Displays the current percentage of the allowable assist ratio power steering motor.
ESTM VHCL SPD (mph or km/h)	Displays the Nissan Murano vehicle speed calculated by the power steering control module.
WARNING LAMP (On/Off)	Hydraulic pump electric power steering system warning lamp control status is displayed.
ENGINE STATUS (STOP/RUN/CRANK)	Engine speed is displayed from engine condition signal via CAN communication
VHCL SPD JUDGE (OK/NG)	Displays the receiving status of the Nissan Murano vehicle speed signal transmitted via CAN communications.

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Steering Control System :: Ecu Diagnosis Information. Power Steering Control Module

Values on the Diagnosis Tool NOTE: The following table includes information (items) inapplicable to this Nissan Murano vehicle: For information (items) applicable to this vehicle, refer to CONSULT display items...

Other information:

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