Nissan Sentra B18 (2020-2025) Service Manual: Consult Function

Nissan Sentra B18 (2020-2025) Service Manual / Steering / Steering Control System :: System Description / Diagnosis System (eps Control Unit) / Consult Function

CONSULT Function

APPLICATION ITEMS

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

Diagnosis mode	CGW Status			Description
Diagnosis mode	Restricted Mode	Diag Test Mode	Open Mode	Description
Self Diagnostic Result	Display	Display	Display	Display non-network DTC which EPS control unit memorizes
CGW Information	Display	Display	Display	Display the current CGW mode Enables CGW to switch mode
Data Monitor	Display	Display	Display	Displays EPS control unit input/output data in real time
ECU Identification	Display	Display	Display	Displays EPS control unit part number
Configuration	Display	Display	Display	The Nissan Sentra vehicle specification that is written in EPS control unit can be displayed or stored The vehicle specification can be written when EPS control unit is replaced
Network-DTC	Display	Display	Display	Display network DTC which EPS control unit memorizes when performing "Diagnosis (All System)".
CAN Diag Support Monitor^*	Display	Display	Display	Note: The mode is indicated, but not monitored

*: Displays when performing "Diagnosis (All System)".

CGW INFORMATION

Display the diagnosis mode which a user can perform in Diag Test mode/Open Mode by switching the CGW status from Restricted mode to Diag Test Mode/Open Mode.

For the method of switching CAN Gateway status, refer to CONSULT Function.

SELF DIAGNOSTIC RESULT

Refer to DTC Index.

When “CRNT” is displayed on self-diagnosis result.

The system is presently malfunctioning.

When “PAST” is displayed on self-diagnosis result.

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

Freeze frame data (FFD)

The following Nissan Sentra vehicle status is recorded when DTC is detected and is displayed on CONSULT:

Freeze Frame Data Item	Unit	Description
Ignition switch counter	(0 – 255)	The number of times that ignition switch is ON after the DTC is detected is displayed. When “0” is displayed: It indicates that the system is presently malfunctioning. When except “0” is displayed: It indicates that system malfunction in the past is detected, but the system is presently normal. Note: Each time when ignition switch is OFF to ON, numerical number increases in 1→2→3...38→255. When the operation number of times exceeds 255, the number do not increase and “255” is displayed until self-diagnosis is erased.
Mileage	km	-

Freeze Frame Data Item

Unit

Description

Ignition switch counter

(0 – 255)

The number of times that ignition switch is ON after the DTC is detected is displayed.

When “0” is displayed: It indicates that the system is presently malfunctioning.
When except “0” is displayed: It indicates that system malfunction in the past is detected, but the system is presently normal.
Note:
Each time when ignition switch is OFF to ON, numerical number increases in 1→2→3...38→255. When the operation number of times exceeds 255, the number do not increase and “255” is displayed until self-diagnosis is erased.

Mileage

DATA MONITOR

Note:

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

Monitor item	Unit	Remarks
Steering torque	Nm	Displays steering torque detected by torque sensor.
Assist level	%	Displays the current percentage of the allowable assist ratio EPS motor.
EPS warning	No error / Error1 / Error2 / not used	EPS warning status is displayed.
Demanded assistance torque	Nm	Displays the assist torque of EPS motor being output by the EPS control unit.
Measured motor current	A	Displays the current value consumed by EPS motor.
ECU temperature	°C	Displays the temperature of the EPS control unit.
Battery voltage	V	Displays the power supply voltage.
Nissan Sentra Vehicle speed	KPH	Display the Nissan Sentra vehicle speed from vehicle speed signal via CAN communication.
ENGINE STATUS	Status1 / Status2 / Status3	Displays the engine status based on the engine status.

ECU IDENTIFICATION

Displays the part number stored in the control unit.

CONFIGURATION

Programming includes the following functions:

Function		Description
Configuration	Before replacing ECU	Allows the reading of Nissan Sentra vehicle specification (parts number) written in EPS control unit to store the specification in CONSULT. Allows the saving of Nissan Sentra vehicle specification (parts number) written in EPS control unit to store the specification in CONSULT.
Configuration	After replacing ECU	Allows the writing of Nissan Sentra vehicle information (parts number) stored in CONSULT into the EPS control unit.

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