Nissan Ariya: Diagnosis System (bcm)

Nissan Ariya (FE0) 2023-2025 Service & Repair Manual / Electrical & Power Control / Body Control System :: System Description / Diagnosis System (bcm)

Common Item
Bcm
Comb Sw
Signal Buffer

Common Item

CONSULT Function (BCM - COMMON ITEM)

APPLICATION ITEM

CONSULT performs the following functions via CAN communication with BCM.

Diagnosis mode	Function Description
Self Diagnostic Result	Displays the diagnosis results judged by BCM
Data Monitor	Displays BCM input/output data in real time
Work support	Displays causes of automatic system cancellation occurred during system control
Active Test	Enables an operational check of a load by transmitting a driving signal from the BCM to the load
ECU Identification	Displays BCM part number
Replace ECU	Write the Nissan Ariya vehicle specification when replacing BCM

SYSTEM APPLICATION

BCM can perform the following functions for each system.

NOTE:

It can perform the diagnosis modes except the following for all sub system selection items.

×: Applicable item

System	Sub system selection item	Diagnosis mode			Reference
System	Sub system selection item	Work Support	Data Monitor	Active Test	Reference
Door lock	DOOR LOCK	—	×	×	CONSULT Function (BCM - DOOR LOCK)
Rear window defogger	REAR DEFOGGER	—	—	×	CONSULT Function (BCM - REAR DEFOGGER)
Exterior lamp	HEAD LAMP	—	×	×	CONSULT Function (BCM - HEAD LAMP)
Interior room lamp	INT LAMP	—	×	×	CONSULT Function (BCM - INT LAMP)
Wiper and washer	WIPER	—	×	×	CONSULT Function (BCM - WIPER)
Turn signal and hazard warning lamps	FLASHER	—	×	×	CONSULT Function (BCM - FLASHER)
—	AIR CONDITONER*	—	—	×	—
Intelligent Key	INTELLIGENT KEY	—	×	×	CONSULT Function (BCM - INTELLIGENT KEY)
Combination switch	COMB SW	—	×	—	CONSULT Function (BCM - COMB SW)
Body control system	BCM	×	×	×	CONSULT Function (BCM - BCM)
Interior room lamp battery saver	BATTERY SAVER	—	×	—	CONSULT Function (BCM - BATTERY SAVER)
Back door	TRUNK	—	×	×	CONSULT Function (BCM - TRUNK)
Nissan Ariya Vehicle security	THEFT ALM	—	×	—	CONSULT Function (BCM - THEFT ALM)
—	MULTI REMOTE ENT*	—	×	—	—
Signal buffer	SIGNAL BUFFER	—	×	—	CONSULT Function (BCM - SIGNAL BUFFER)
Tire pressure monitoring	AIR PRESSURE MONITOR	×	×	—	CONSULT Function (BCM - AIR PRESSURE MONITOR)

NOTE:

*: This item is displayed, but not used.

FREEZE FRAME DATA (FFD)

The BCM records the following vehicle condition at the time a particular DTC is detected, and displays on CONSULT.

CONSULT screen item	Indication/Unit	Description
ODO/TRIP METER	Km	Displays the total mileage (odometer value) of the moment a particular.
DTC occurrence Counter	count	Displays the number of times DTC is detected.
Battery voltage	V	Battery voltage of the moment a particular DTC is detected.
Nissan Ariya Vehicle SPEED	km/h	Vehicle speed of the moment a particular DTC is detected.
External temperature	°C	External temperature of the moment a particular DTC is detected
Nissan Ariya Vehicle condition	—	NOTE: This item is displayed, but cannot be use this item.
Door lock status	—	NOTE: This item is displayed, but cannot be use this item.
Power supply counter	min	Displays the cumulative time from the time that the battery terminal is connected.
Battery voltage	—	Battery voltage of the moment a particular DTC is detected.
Air pressure-front left	mBar	Air pressure of front left tire of the moment a particular DTC is detected.
Set switch	OFF/ON	Status of set switch of the moment a particular DTC is detected.
Pressure sensor malfunction-front left	OFF/ON	Status of front left tire air pressure sensor malfunction of the moment a particular DTC is detected.
Temperature sensor malfunction-front left	OFF/ON	Status of front left tire temperature sensor malfunction of the moment a particular DTC is detected.
Gravity sensor malfunction-front left	OFF/ON	Status of front left tire G sensor malfunction of the moment a particular DTC is detected.
Communication error-front left	OFF/ON	Status of front left tire communication error of the moment a particular DTC is detected.
Communication error-front right	OFF/ON	Status of front right tire communication error of the moment a particular DTC is detected.
Set air pressure 2-front left	mBar	Standard air pressure of front left tire of the moment a particular DTC is detected.
Communication error-rear right	OFF/ON	Status of rear right tire communication error of the moment a particular DTC is detected.
Communication error-rear left	OFF/ON	Status of rear left tire communication error of the moment a particular DTC is detected.
Tire rotate detection-front left	No rotate/Rotate/Not detection	Status of front left tire rotate detection of the moment a particular DTC is detected.
Tire pressure monitoring system sensor power supply low voltage-front left	OFF/ON	Status of front left tire TPMS sensor power supply low voltage of the moment a particular DTC is detected.
Set air pressure 1-front left	mBar	Standard air pressure of front left tire of the moment a particular DTC is detected.
Warning air pressure-front left	mBar	Warning air pressure of front left tire of the moment a particular DTC is detected.
Tire internal temperature-front left	°C	Internal temperature of front left tire of the moment a particular DTC is detected.
Set temperature-front left	°C	Standard temperature of front left tire of the moment a particular DTC is detected.
Nissan Ariya Vehicle speed	km/h	Vehicle speed of the moment a particular DTC is detected.
Air pressure-front right	mBar	Air pressure of front right tire of the moment a particular DTC is detected.
Pressure sensor malfunction-front right	OFF/ON	Status of front right tire air pressure sensor malfunction of the moment a particular DTC is detected.
Temperature sensor malfunction-front right	OFF/ON	Status of front right tire temperature sensor malfunction of the moment a particular DTC is detected.
Gravity sensor malfunction-front right	OFF/ON	Status of front right tire G sensor malfunction of the moment a particular DTC is detected.
Set air pressure 2-front right	mBar	Standard air pressure of front right tire of the moment a particular DTC is detected.
Tire rotate detection-front right	No rotate/Rotate/Not detection	Status of front right tire rotate detection of the moment a particular DTC is detected.
Tire pressure monitoring system sensor power supply low voltage-front right	OFF/ON	Status of front right tire TPMS sensor power supply low voltage of the moment a particular DTC is detected.
Set air pressure 1-front right	mBar	Standard air pressure of front right tire of the moment a particular DTC is detected.
Warning air pressure-front right	mBar	Warning air pressure of front right tire of the moment a particular DTC is detected.
Tire internal temperature-front right	°C	Internal temperature of front right tire of the moment a particular DTC is detected.
Set temperature-front right	°C	Standard temperature of front right tire of the moment a particular DTC is detected.
Air pressure-rear right	mBar	Air pressure of rear right tire of the moment a particular DTC is detected.
Pressure sensor malfunction-rear right	OFF/ON	Status of rear right tire air pressure sensor malfunction of the moment a particular DTC is detected.
Temperature sensor malfunction-rear right	OFF/ON	Status of rear right tire temperature sensor malfunction of the moment a particular DTC is detected.
Gravity sensor malfunction-rear right	OFF/ON	Status of rear right tire G sensor malfunction of the moment a particular DTC is detected.
Set air pressure 2-rear right	mBar	Standard air pressure of rear right tire of the moment a particular DTC is detected.
Tire rotate detection-rear right	No rotate/Rotate/Not detection	Status of rear right tire rotate detection of the moment a particular DTC is detected.
Tire pressure monitoring system sensor power supply low voltage-rear right	OFF/ON	Status of rear right tire TPMS sensor power supply low voltage of the moment a particular DTC is detected.
Set air pressure 1-rear right	mBar	Standard air pressure of rear right tire of the moment a particular DTC is detected.
Warning air pressure-rear right	mBar	Warning air pressure of rear right tire of the moment a particular DTC is detected.
Tire internal temperature-rear right	°C	Internal temperature of rear right tire of the moment a particular DTC is detected.
Set temperature-rear right	°C	Standard temperature of rear right tire of the moment a particular DTC is detected.
Air pressure-rear left	mBar	Air pressure of rear left tire of the moment a particular DTC is detected.
Pressure sensor malfunction-rear left	OFF/ON	Status of rear left tire air pressure sensor malfunction of the moment a particular DTC is detected.
Temperature sensor malfunction-rear left	OFF/ON	Status of rear left tire temperature sensor malfunction of the moment a particular DTC is detected.
Gravity sensor malfunction-rear left	OFF/ON	Status of rear left tire G sensor malfunction of the moment a particular DTC is detected.
Set air pressure 2-rear left	mBar	Standard air pressure of rear left tire of the moment a particular DTC is detected.
Tire rotate detection-rear left	No rotate/Rotate/Not detection	Status of rear left tire rotate detection of the moment a particular DTC is detected.
Tire pressure monitoring system sensor power supply low voltage-rear left	OFF/ON	Status of rear left tire TPMS sensor power supply low voltage of the moment a particular DTC is detected.
Set air pressure 1-rear left	mBar	Standard air pressure of rear left tire of the moment a particular DTC is detected.
Warning air pressure-rear left	mBar	Warning air pressure of rear left tire of the moment a particular DTC is detected.
Tire internal temperature-rear left	°C	Internal temperature of rear left tire of the moment a particular DTC is detected.
Set temperature-rear left	°C	Standard temperature of rear left tire of the moment a particular DTC is detected.
Immobilizer verification (EPS C/U)	OFF/ON	Immobilizer verification status (EPS C/U) of the moment a particular DTC is detected.
Engine start blocking status	OFF/ON	Engine start blocking status of the moment a particular DTC is detected.
Nissan Ariya Vehicle speed (ABS)	km/h	Vehicle speed of the moment a particular DTC is detected.
Immobilizer	Normal/NG (Shift)/NG (Key ID)/NG (Electric Power Steering Control Unit)/NG (Telematics communication unit)/Erase	Immobilizer status of the moment a particular DTC is detected.
Immobilizer verification (ECM/inverter)	OFF/ON	Immobilizer verification status (ECM/inverter) of the moment a particular DTC is detected.
Immobilizer verification (Key ID)	OFF/ON	Immobilizer verification status (Key ID) of the moment a particular DTC is detected.

Bcm

CONSULT Function (BCM - BCM)

DATA MONITOR

NOTE:

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

Monitor item [UNIT]	Description
Door switch assist [ON/OFF]	Indicated [ON/OFF] condition of front door switch (passenger side)
ECO mode switch [ON/OFF]	Indicated [ON/OFF] condition of ECO mode position in drive mode select switch
Battery voltage (door lock 1) [ON/OFF]	Indicated [ON/OFF] condition of battery power supply (front door lock actuator) status
Battery voltage (door lock 2) [ON/OFF]	Indicated [ON/OFF] condition of battery power supply (rear door lock actuator) status
Battery voltage (electric control unit)	Indicated of battery power supply (fuse) value
Battery voltage (flasher) [ON/OFF]	Indicated [ON/OFF] condition of battery power supply (turn signal lamp) status
Battery voltage (stop lamp) [ON/OFF]	Indicated [ON/OFF] condition of battery power supply (stop lamp) status
Battery voltage (wiper) [ON/OFF]	Indicated [ON/OFF] condition of battery power supply (wiper) status
Seat belt switch (driver) [ON/OFF]	Indicated [ON/OFF] condition of front seat belt buckle switch (driver side)
Sport mode switch [ON/OFF]	Indicated [ON/OFF] condition of SPORT mode position in drive mode select switch
Rear wiper auto stop switch [ON/OFF]	Indicated [ON/OFF] condition of rear wiper auto stop status
High beam assist switch [ON/OFF]	Indicated [ON/OFF] condition of high beam assist switch in combination switch judged by BCM with the combination switch reading function
Back-up lamp output [ON/OFF]	NOTE: This item is displayed, but cannot be monitored.
Back door/trunk status [ON/OFF]	NOTE: This item is displayed, but cannot be monitored.
Power window request FL [No request/0 - 100/STOP]	NOTE: This item is displayed, but cannot be monitored.
Power window request FR [No request/0 - 100/STOP]	NOTE: This item is displayed, but cannot be monitored.
Power window request RL [No request/0 - 100/STOP]	NOTE: This item is displayed, but cannot be monitored.
Power window request RR [No request/0 - 100/STOP]	NOTE: This item is displayed, but cannot be monitored.
Power window operation FR [Active/Inactive]	NOTE: This item is displayed, but cannot be monitored.
Drive mode select switch communication [NO ERROR/ERROR]	NOTE: This item is displayed, but cannot be monitored.

WORK SUPPORT

Item	Description
VIN registration	Register of the Nissan Ariya vehicle identification number when replacing BCM.
MAC key writing	Write MAC key to BCM.
OTA status reset	NOTE: This item is displayed, but cannot be used.

Item

Description

VIN registration

MAC key writing

Write MAC key to BCM.

OTA status reset

NOTE:

This item is displayed, but cannot be used.

ACTIVE TEST

Item	Operation	Description
Front window defogger (passenger side)	On	NOTE: This item is displayed, but cannot be tested.
Front window defogger (passenger side)	Off	NOTE: This item is displayed, but cannot be tested.
Front window defogger (driver side)	On	NOTE: This item is displayed, but cannot be tested.
Front window defogger (driver side)	Off	NOTE: This item is displayed, but cannot be tested.

Comb Sw

CONSULT Function (BCM - COMB SW)

DATA MONITOR

NOTE:

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

Monitor item [UNIT]	Description
Optical sensor [–]	Displays the value of the optical sensor.
Check diode 1 [On/Off]	Displays the status of the check diode 1 in combination switch.
High beam switch [On/Off]	Displays the status of the high beam switch in combination switch judged by BCM with the combination switch reading function.
Passing switch [On/Off]	Displays the status of the passing switch in combination switch judged by BCM with the combination switch reading function.
Rear fog switch [On/Off]	NOTE: This item is displayed, but cannot be monitored.
Front fog switch [On/Off]	Displays the status of the front fog switch in combination switch judged by BCM with the combination switch reading function.
INT volume 1 [On/Off]	Displays the status of the INT volume 1 in combination switch judged by BCM with the combination switch reading function.
Check diode 2 [On/Off]	Displays the status of the check diode 2 in combination switch judged by BCM with the combination switch reading function.
Low beam switch [On/Off]	Displays the status of the low beam switch in combination switch judged by BCM with the combination switch reading function.
AUTO light switch [On/Off]	Displays the status of the AUTO light switch in combination switch judged by BCM with the combination switch reading function. (With lighting switch OFF position) NOTE: This item is displayed, but cannot be monitored. (Without lighting switch OFF position)
Tail lamp switch [On/Off]	Displays the status of the tail lamp switch in combination switch judged by BCM with the combination switch reading function.
Front washer switch [On/Off]	Displays the status of the front washer switch in combination switch judged by BCM with the combination switch reading function.
Rear washer switch [On/Off]	Displays the status of the rear washer switch in combination switch judged by BCM with the combination switch reading function.
Check diode 3 [On/Off]	Displays the status of the check diode 3 in combination switch judged by BCM with the combination switch reading function.
Turn signal LH [On/Off]	Displays the status of the turn signal LH in combination switch judged by BCM with the combination switch reading function.
Turn signal RH [On/Off]	Displays the status of the turn signal RH in combination switch judged by BCM with the combination switch reading function.
Front wiper LO [On/Off]	Displays the status of the front wiper LO in combination switch judged by BCM with the combination switch reading function.
Front wiper HI [On/Off]	Displays the status of the front wiper HI in combination switch judged by BCM with the combination switch reading function.
Front wiper INT [On/Off]	Displays the status of the front wiper INT in combination switch judged by BCM with the combination switch reading function.
Check diode 4 [On/Off]	Displays the status of the check diode 4 in combination switch judged by BCM with the combination switch reading function.
Light OFF switch [On/Off]	Displays the status of the light OFF switch in combination switch judged by BCM with the combination switch reading function.
INT volume 2 [On/Off]	Displays the status of the INT volume 2 in combination switch judged by BCM with the combination switch reading function.
INT volume 3 [On/Off]	Displays the status of the INT volume 3 in combination switch judged by BCM with the combination switch reading function.
Rear wiper INT [On/Off]	Displays the status of the rear wiper INT in combination switch judged by BCM with the combination switch reading function.
Rear wiper ON [On/Off]	Displays the status of the rear wiper ON in combination switch judged by BCM with the combination switch reading function.
Check diode 5 [On/Off]	Displays the status of the check diode 5 in combination switch judged by BCM with the combination switch reading function.
Front wiper OFF [On/Off]	Displays the status of the front wiper OFF in combination switch judged by BCM with the combination switch reading function.
Front wiper MIST [On/Off]	Displays the status of the front wiper MIST in combination switch judged by BCM with the combination switch reading function.

Signal Buffer

CONSULT Function (BCM - SIGNAL BUFFER)

DATA MONITOR

NOTE:

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

Monitor item [UNIT]	Description
Brake switch 1 [On/Off]	Indicates [On/Off] condition of stop lamp switch 1
Brake switch 2 [On/Off]	Indicates [On/Off] condition of stop lamp switch 2
Clutch end SW [On/Off]	NOTE: This item is displayed, but cannot be monitored.
Clutch start SW [On/Off]	NOTE: This item is displayed, but cannot be monitored.
Detention/Cancel switch [On/Off]	NOTE: This item is displayed, but cannot be monitored.