Nissan Ariya: Rear Traction Motor

Nissan Ariya (FE0) 2023-2025 Service & Repair Manual / Electric Power Train / Traction Motor System / Rear Traction Motor

Preparation

Commercial Service Tools

Tool name		Description
Insulated gloves		Removing and installing high voltage components [Guaranteed insulation performance for 1000V/300A]
Leather gloves		Removing and installing high voltage components Protect insulated gloves [Use leather gloves that can fasten the wrist tight]
Insulated safety shoes		Removing and installing high voltage components
Safety glasses		Removing and installing high voltage components To protect eye from the spatter on the work to electric line [ANSI Z87.1]
Face shield		Removing and installing high voltage components To protect face from the spatter on the work to electric line
Insulated helmet		Removing and installing high voltage components
Insulation resistance tester (Multi tester)		Measuring insulation resistance, voltage, and resistance
Sling belt		Removing and installing rear traction motor NOTE: Withstand load over 500 kg (1102.5 lb)
Power tool		Loosening bolts and nuts

Lubricant or/and Sealant

Item	Use
Lithium-based grease including molybdenum disulphide	Application to O-ring of rear traction motor shaft
ATF (Genuine NISSAN Matic S)	Application to O-ring of rear traction motor stator temperature sensor joint connector

Ecu Diagnosis Information. Inverter (rear)

Physical Values

TERMINAL LAYOUT

PHYSICAL VALUES

CAUTION:

Disconnect the inverter (rear) connector and measure it using wiring harness connector on the Nissan Ariya vehicle side. While doing so, do not touch the connector terminals on the inverter (rear).

If the power switch is switched ON when the inverter (rear) connector is disconnected, the other control modules may detect that there is an error with the inverter (rear).

Terminal No. (Wire Color)		Item		Condition	Value (Approx.)
+	−	Signal name	Input/Output	Condition	Value (Approx.)
1 (BR)	11 (GR)	Motor oil temperature sensor	Input	—	Within ±50% of the temperature characteristics chart
3 (BG)	2 (V)	Motor temperature sensor	Input	—	Within ±50% of the temperature characteristics chart
4 (B)	Ground	Ground 2	—	Always	0 V
13 (R)	12 (L)	Motor resolver signal (S1 - S3)	Input	—	34.6 - 42.4 Ω
14 (B)	Ground	Ground 1	—	Always	0 V
18 (P)	Ground	12V battery power supply	Input	Always	9 – 16 V
22 (Y)	21 (W)	Motor resolver signal (S2 - S4)	Input	—	37.6 - 46.0 Ω
24 (G)	23 (BR)	Motor resolver signal (R1 - R2)	Output	—	8.5 - 12.7 Ω
25^* (R)	—	—	—	—	—
26 (G)	Ground	EV system CAN-L	Input/Output	—	—
27 (L)	Ground	EV system CAN-H	Input/Output	—	—
28 (P)	Ground	12V battery power supply	Input	Always	9 – 16 V
29 (Y)	19 (SB)	Motor oil pump communication signal	Input/Output	—	—
30 (LG)	Ground	Power switch ON signal	Input	Power switch: ON	9 – 16 V
30 (LG)	Ground	Power switch ON signal	Input	Power switch: OFF	0 V

*: Not used for control.

Values On The Diagnosis Tool

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	Condition	Value/Status
Motor speed 1	READY state (Nissan Ariya vehicle is stopped)	Approx. 0 rpm
Motor speed 1	During driving	The value changes depending on the Nissan Ariya vehicle speed.
Inverter input voltage (High voltage)	READY (stop the Nissan Ariya vehicle) and during driving	Approximately the same as the Li-ion battery voltage
Rotor current value 1	READY state (Nissan Ariya vehicle is stopped)	Approx. 0 rpm
Rotor current value 1	During driving	0 - 17.5 A (The value changes depending on the Nissan Ariya vehicle speed.)
Rotor current value 2	READY state (Nissan Ariya vehicle is stopped)	Approx. 0 rpm
Rotor current value 2	During driving	0 - 17.5 A (The value changes depending on the Nissan Ariya vehicle speed.)
Ignition signal	Power switch ON	Ignition power supply on
Inverter power module temperature	READY state (Nissan Ariya vehicle is stopped)	Same as the cooling water temperature once the temperature is saturated
Inverter power module temperature	During driving	The temperature changes depending on the Nissan Ariya vehicle running
Resolver offset value	―	―
Rotor resistance value	―	―
Inverter initial diagnosis	READY state (Nissan Ariya vehicle is stopped)	Not diagnosed
Inverter high voltage circuit diagnosis result	READY state	OK
Inverter torque control function diagnosis result	READY state	OK
Inverter abnormality judgement 1	READY state	OK
Inverter abnormality judgement 2	READY state	OK
Rotor current diagnosis result	READY state	OK
Stator current diagnosis result	READY state	OK
Inverter over voltage malfunction (High voltage)	READY state	OK
Inverter control status 1	READY state (Nissan Ariya vehicle is stopped)	Traction
Inverter control status 1	During driving	Traction
12V battery voltage	Power switch ON	9 – 16 V
Re-programming judgement result	―	―
Key available	―	―
Inverter temperature	READY state	The temperature changes depending on the Nissan Ariya vehicle running (including when stopped).
Inverter power module high arm IGBT status	READY state	OK
Inverter power module low arm IGBT status	READY state	OK
Li-ion battery abnormality state	READY state	OK
Li-ion battery voltage	Power switch ON	269 – 402 V
Discharge request	READY state	Off
Torque request	READY state (Nissan Ariya vehicle is stopped)	Approx. 0.0 Nm
Torque request	During driving	Changes depending on the Nissan Ariya vehicle acceleration or deceleration
Inverter activation request	Power switch ON	Off
Inverter activation request	READY state	On
Sleep/wake up request	Power switch ON	Wake up request
Ignition signal (CAN)	Power switch ON	Ignition power on
Communication diagnosis permission status	READY state	Permit
Coolant flow	READY state	Changes depending on the Nissan Ariya vehicle state.
ODO	Power switch ON	Approximately the same as the combination meter ODO
Safety maximum torque	During driving	Changes depending on the Nissan Ariya vehicle acceleration or deceleration
High voltage relay status	Power switch ON	Close
OTA status	Power switch ON (no OTA request)	No request
Drive prohibition signal	Power switch ON	OK
Safety minimum torque	During driving	Changes depending on the Nissan Ariya vehicle acceleration or deceleration
Oil pump status	Power switch ON	OK
Stator temperature	READY state (Nissan Ariya vehicle is stopped)	Same as the cooling water temperature once the temperature is saturated
Stator temperature	During driving	The temperature changes depending on the Nissan Ariya vehicle running
Rotor temperature	READY state (Nissan Ariya vehicle is stopped)	It is an estimated value and declines gradually when Nissan Ariya vehicle is stopped.
Rotor temperature	During driving	The temperature changes depending on the Nissan Ariya vehicle running
Command oil pump speed	READY state (Nissan Ariya vehicle is stopped)	500 - 3800 rpm (Changes depending on the rear traction motor temperature and oil temperature.)
Oil pump speed	READY state (Nissan Ariya vehicle is stopped)	500 - 3800 rpm (Changes depending on the rear traction motor temperature and oil temperature.)
Motor speed 2	READY state (Nissan Ariya vehicle is stopped)	Approx. 0 rpm
Motor speed 2	During driving	The value changes depending on the Nissan Ariya vehicle speed.
Inverter high voltage	READY (stop the Nissan Ariya vehicle) and during driving	Approximately the same as the Li-ion battery voltage
Motor oil temperature	READY state (Nissan Ariya vehicle is stopped)	Same as the cooling water temperature once the temperature is saturated
Motor oil temperature	During driving	The temperature changes depending on the Nissan Ariya vehicle running
Inverter direct current value	READY state (Nissan Ariya vehicle is stopped)	Approx. 0.0 A
Inverter direct current value	During driving	The temperature changes depending on the Nissan Ariya vehicle running
Motor maximum power	READY state (Nissan Ariya vehicle is stopped)	Approx. 0.0 kw
Motor maximum power	During driving	The value changes depending on the Nissan Ariya vehicle speed.
Motor power/regeneration status	READY state (Nissan Ariya vehicle is stopped)	Power mode
	During driving (accelerator pedal ON)	Power mode
	During driving (accelerator pedal OFF)	Regeneration mode
Inverter discharge status	Inverter (rear) discharging	Discharging
Inverter discharge status	Except above	Not discharged
Inverter control status 2	READY state	OK
Motor estimated torque	READY state (Nissan Ariya vehicle is stopped)	Approx. 0.0 Nm
Motor estimated torque	During driving (accelerator pedal ON)	Changes depending on the Nissan Ariya vehicle speed.
Motor regeneration maximum torque	READY state (Nissan Ariya vehicle is stopped)	Approx. 0.0 Nm
Motor regeneration maximum torque	During driving (accelerator pedal OFF)	Changes depending on the Nissan Ariya vehicle speed.
Motor power maximum torque	READY state (Nissan Ariya vehicle is stopped)	Approx. 0.0 Nm
Motor power maximum torque	During driving (accelerator pedal ON)	Changes depending on the Nissan Ariya vehicle speed.
Inverter sleep permission	Power switch ON	Prohibit
Motor normalization temperature	Power switch ON	0 - 100% (Changes depending on the rear traction motor temperature.)
Inverter abnormality state	Power switch ON	OK
Inverter status (CAN)	READY state (Nissan Ariya vehicle is stopped)	Power on 2
Inverter normalization temperature	Power switch ON	0 - 100% [Changes depending on the inverter (rear) temperature.]
Lamp lighting request 2	EV system warning (EV system stopped)When displayed	Request present
Lamp lighting request 2	Except above	No request
Lamp lighting request 1	EV system warning (EV system malfunction)When displayed	Request present
Lamp lighting request 1	Except above	No request
Inverter coolant temperature	READY state (Nissan Ariya vehicle is stopped)	Same as the cooling water temperature once the temperature is saturated
Inverter coolant temperature	During driving	The temperature changes depending on the Nissan Ariya vehicle running
U current sensor offset value	―	―
V current sensor offset value	―	―
W current sensor offset value	―	―
Rotor current sensor 1 offset value	―	―
Rotor current sensor 2 offset value	―	―

Fail-safe

Refer to Fail-safe.

Protection Function

Refer to Protection Function.

DTC Inspection Priority Chart

If some DTCs are displayed at the same time, perform inspections one by one based on the priority as per the following list. For DTC, refer to DTC Index.

Priority	Detected items (DTC)
1	P0A8B-A2 14 Volt Power Module System Voltage
2	P030A-62 Ignition A Control Signal
	P0A30-11 Drive Motor B Temperature Sensor
	P0A30-13 Drive Motor B Temperature Sensor
	P0A30-4B Drive Motor B Temperature Sensor
	P0A79-48 Drive Motor B Inverter
	P0A79-62 Drive Motor B Inverter
	P0DA3-17 Drive Motor B Inverter Voltage Sensor A
	P0DA9-00 Hybrid/EV Battery Voltage/Drive Motor B Inverter Voltage Correlation
	P161D-61 Immobilizer
	P161E-68 Immobilizer
	P161F-64 Immobilizer
	P30D0-11 Drive Motor B Coolant Temperature Sensor
	P30D0-13 Drive Motor B Coolant Temperature Sensor
	P30D0-4B Drive Motor B Coolant Temperature Sensor
	P30E5-04 Drive Motor B Coolant Pump Control
	P30E5-81 Drive Motor B Coolant Pump Control
	P30E5-87 Drive Motor B Coolant Pump Control
	U2143-82 CAN communication error (VCM/HCM)
	U2143-83 CAN communication error (VCM/HCM)
	U2143-87 CAN communication error (VCM/HCM)
	U2144-82 CAN communication error (Li-ion battery)
	U2144-83 CAN communication error (Li-ion battery)
	U2144-87 CAN communication error (Li-ion battery)
	U2150-87 CAN communication error (AIRBAG)
3	P0A1C-01 Drive Motor B Control Module
	P0A1C-03 Drive Motor B Control Module
	P0A1C-04 Drive Motor B Control Module
	P0A1C-05 Drive Motor B Control Module
	P0A1C-44 Drive Motor B Control Module
	P0A45-04 Drive Motor B Position Sensor
	P0A45-1C Drive Motor B Position Sensor
	P0A55-01 Drive Motor B Current Sensor
	P0AF2-11 Drive Motor Inverter Temperature Sensor B
	P0AF2-13 Drive Motor Inverter Temperature Sensor B
	P0AF2-1C Drive Motor Inverter Temperature Sensor B
	P0AF2-4B Drive Motor Inverter Temperature Sensor B
	P0BF1-1C Drive Motor B Phase U Current Sensor
	P0BF5-1C Drive Motor B Phase V Current Sensor
	P0BF9-1C Drive Motor B Phase W Current Sensor
	P0C02-11 Drive Motor B Current
	P0C02-12 Drive Motor B Current
	P0C0E-01 Drive Motor B Inverter Power Supply
	P0C0E-04 Drive Motor B Inverter Power Supply
	P0C0E-1C Drive Motor B Inverter Power Supply
	P0C0E-A2 Drive Motor B Inverter Power Supply
	P2BD8-11 Motor Electronics Coolant Temperature Sensor B
	P2BD8-13 Motor Electronics Coolant Temperature Sensor B
	P3081-44 Resolver Offset Value Error
	P3082-44 Rotor Resistance Value Error
	P3083-44 Immobilizer
	P30E6-11 Drive Motor B Excitation Current
	P30E6-12 Drive Motor B Excitation Current
	P30E6-1C Drive Motor B Excitation Current
	P30E7-01 Drive Motor B Excitation Current Sensor
	P30E7-18 Drive Motor B Excitation Current Sensor
	P30E7-1D Drive Motor B Excitation Current Sensor
4	P0C02-18 Drive Motor B Current
4	P2D3B-92 Hybrid/EV Discharge System

DTC Index

NOTE:

If some DTCs are displayed at the same time, perform inspections one by one based on the priority as per the following list. Refer to DTC Inspection Priority Chart.

DTC^*1		Items (CONSULT screen terms)	EV system warning lamp	Reference
P030A	62	Ignition A Control Signal	—	DTC Description
P0A1C	01	Drive Motor B Control Module	ON	DTC Description
	03		ON	DTC Description
	04		ON	DTC Description
	05		ON	DTC Description
	44		—	DTC Description
P0A30	11	Drive Motor B Temperature Sensor	ON	DTC Description
	13		ON	DTC Description
	4B		ON	DTC Description
P0A45	04	Drive Motor B Position Sensor	ON	DTC Description
P0A45	1C	Drive Motor B Position Sensor	ON	DTC Description
P0A55	01	Drive Motor B Current Sensor	ON	DTC Description
P0A79	48	Drive Motor B Inverter	ON	DTC Description
P0A79	62	Drive Motor B Inverter	ON	DTC Description
P0A8B	A2	14 Volt Power Module System Voltage	ON	DTC Description
P0AF2	11	Drive Motor Inverter Temperature Sensor B	—	DTC Description
	13		—	DTC Description
	1C		—	DTC Description
	4B		ON	DTC Description
P0BF1	1C	Drive Motor B Phase U Current Sensor	ON	DTC Description
P0BF5	1C	Drive Motor B Phase V Current Sensor	ON	DTC Description
P0BF9	1C	Drive Motor B Phase W Current Sensor	ON	DTC Description
P0C02	11	Drive Motor B Current	ON	DTC Description
	12		ON	DTC Description
	18		ON	DTC Description
P0C0E	01	Drive Motor B Inverter Power Supply	ON	DTC Description
	04		ON	DTC Description
	1C		ON	DTC Description
	A2		ON	DTC Description
P0DA3	17	Drive Motor B Inverter Voltage Sensor A	ON	DTC Description
P0DA9	00	Hybrid/EV Battery Voltage/Drive Motor B Inverter Voltage Correlation	ON	DTC Description
P161D^*2	61	Immobilizer	—	DTC Description
P161E^*2	68	Immobilizer	—	DTC Description
P161F^*2	64	Immobilizer	—	DTC Description
P2BD8	11	Motor Electronics Coolant Temperature Sensor B	—	DTC Description
P2BD8	13	Motor Electronics Coolant Temperature Sensor B	—	DTC Description
P2D3B	92	Hybrid/EV Discharge System	ON	DTC Description
P3081	44	Resolver Offset Value Error	ON	DTC Description
P3082	44	Rotor Resistance Value Error	ON	DTC Description
P3083	44	Immobilizer	—	DTC Description
P30D0	11	Drive Motor B Coolant Temperature Sensor	ON	DTC Description
	13		ON	DTC Description
	4B		ON	DTC Description
P30E5	04	Drive Motor B Coolant Pump Control	ON	DTC Description
	81		ON	DTC Description
	87		ON	DTC Description
P30E6	11	Drive Motor B Excitation Current	ON	DTC Description
	12		ON	DTC Description
	1C		ON	DTC Description
P30E7	01	Drive Motor B Excitation Current Sensor	ON	DTC Description
	18		ON	DTC Description
	1D		ON	DTC Description
U2143	82	CAN communication error (VCM/HCM)	May turn ON	DTC Description
	83		May turn ON	DTC Description
	87		May turn ON	DTC Description
U2144	82	CAN communication error (Li-ion battery)	May turn ON	DTC Description
	83		May turn ON	DTC Description
	87		May turn ON	DTC Description
U2150	87	CAN communication error (AIRBAG)	—	DTC Description

*1: These numbers are rescribed by SAE J2012/ISO 15031-6.

*2: These DTCs are the immobilizer-related DTCs.

Symptom Diagnosis

Symptom Description

The electromagnetic noise of the rear traction motor may become more noticeable when accelerating on a steep slope (large output torque).

This occurs when the IGBT switching frequency is lowered by the inverter (rear) due to high temperature of the IGBT inside the inverter (rear). This does not indicate a problem with the inverter (rear) characteristics or control.

This phenomenon is one of the protective controls. Refer to Protection Function.

Periodic Maintenance. Rear Traction Motor Oil

REAR TRACTION MOTOR OIL : Inspection

Oil Leakage Inspection

Check that there is no oil leakage around the rear traction motor.
If an abnormality is found, replace the rear traction motor. Refer to Removal and Installation.