Nissan Pathfinder: Transaxle & Transmission - 9at: Ge9f01a

Nissan Pathfinder (R53) 2022-2025 Service Manual / Transmission & Driveline :: Transaxle & Transmission / 9at: Ge9f01a

Precautions ➤
Preparation
Symptom Diagnosis. System Symptom
Periodic Maintenance. A/t Fluid
Unit Removal and Installation. Transaxle Assembly ➤
Unit Disassembly and Assembly. Torque Converter and Converter Housing Oil Seal
Service Data and Specifications (SDS)

Precautions ➤ Nissan Pathfinder Fifth generation

Preparation Nissan Pathfinder SUV

Special Service Tools

The actual shape of the tools may differ from those illustrated here.

Tool number (TechMate No.) Tool name		Description
KV311039S0 ( — ) Charging pipe set KV31103920* ( — ) O-ring		A/T fluid changing and adjustment
( — ) (NI-52584) A/T stand pipe adapter kit		A/T fluid changing and adjustment
KV38107900 (NI-52469–1) Differential side oil seal protector		Installing drive shaft A: 32 mm (1.26 in) dia B: Minimum 23 mm (0.91 in)
— (NI-52982) Lock nut chisel (Cape chisel)		Removing wheel hub lock nut
KV31103700 ( — ) Drift		Differential side oil seal (Transaxle case side) a: 53 mm (2.09 in) dia. b: 57 mm (2.24 in) dia. c: 70 mm (2.76 in) dia. d: 8 mm (0.31 in) dia.
(NI-51001) Transmission fill pump		Oil fill kit
— (NI-53124) Output seal installer		Installing differential side oil seal (LH)
— (NI-53125) Output seal installer		Installing differential side oil seal (RH)
— (NI-53126) Input seal installer		Installing converter housing oil seal

*: The O-ring as a unit part is set as a SST.

Commercial Service Tools

Tool name		Description
Power tool		Loosening nuts, screws and bolts
Drift		Installing differential side oil seal (Converter housing side) a: 47mm (1.85 in) dia. b: 51 mm (2.01 in) dia. c: 70 mm (2.76 in) dia. d: 8 mm (0.31 in) dia.
Drift		Installing converter housing oil seal a: 65 mm (2.56 in) dia. b: 60 mm (2.36 in) dia.
Lock nut crimp punch (Cold chisel)		Installing wheel hub lock nut a: 5 mm (0.20 in) b: 7 mm (0.28 in)
Drive shaft joint puller		Removing drive shaft
5/8" Disconnect tool		For removal of the A/T fluid cooler hoses.

Always Replace with New Parts

Never Reuse These Parts	Part # Prefix	For additional information:
Hose clamp	31088F	WATER HOSE EXPLODED VIEW
Differential side oil seal	38342P	WATER OUTLET AND WATER PIPING EXPLODED VIEW
Converter housing oil seal	31110	TORQUE CONVERTER AND CONVERTER HOUSING OIL SEAL EXPLODED VIEW
O-ring	—	CONTROL VALVE EXPLODED VIEW
Wheel hub lock nut	40262	FRONT WHEEL HUB EXPLODED VIEW
Nut	40040B	FRONT WHEEL HUB EXPLODED VIEW
O-ring	92471	COOLER PIPE AND HOSE EXPLODED VIEW
Gasket	20691	EXHAUST SYSTEM EXPLODED VIEW
Seal bearing	20695	EXHAUST SYSTEM EXPLODED VIEW
Bolt	20020B	EXHAUST SYSTEM EXPLODED VIEW
Nut	20020A	EXHAUST SYSTEM EXPLODED VIEW
Bolt	37010AA	REAR PROPELLER SHAFT EXPLODED VIEW
Nut	37050B	REAR PROPELLER SHAFT EXPLODED VIEW
Nut	54040B	FRONT COIL SPRING AND STRUT EXPLODED VIEW
Nut	54060B	FRONT STABILIZER EXPLODED VIEW
Bolt	14002B	EXHAUST MANIFOLD AND THREE WAY CATALYST EXPLODED VIEW
Gasket	14036M	EXHAUST MANIFOLD AND THREE WAY CATALYST EXPLODED VIEW

Symptom Diagnosis. System Symptom Nissan Pathfinder R53

Symptom Table

The diagnostics item numbers show the sequence for inspection. Inspect in order from item 1.

Diagnostic item	Reference	Symptom
		Poor performance											Function trouble
		Driving performance							Strange noise				Gear does no change		Poor shifting	Poor power transmission
		Shift point is high in “D” position.	Shift point is low in “D” position.	Large shock				Judder							Slip	Slip
				When shifting gears				Judder							Slip	Slip
				→“D” position	→“R” position	Downshift when accelerator pedal is depressed	Upshift when accelerator pedal is released	Lock-up	In “R” position	In “N” position	In “D” position	Engine at idle	In “D” position	In “M” position	When shifting gears	With selector lever in “D” position, acceleration is extremely poor.	With selector lever in “R” position, acceleration is extremely poor.	No creep at all.	Extremely large creep.
Nissan Pathfinder Vehicle speed signal	Diagnosis Procedure	2	2	2	2	1	1	1	1	2	1	1	1	1	2	3	3	3	3
Accelerator pedal position signal	DTC Index	1	1	2	2	1	1	2	2	2	2	2	1	1	1	2	2	2	2
Engine speed signal	DTC Index	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Battery voltage	Diagnosis Procedure			3	3	3	3
Electric shift selector	DTC Index	1	1			1	1	2	3	3	3	3	1	1		1	1	1	1
Paddle shifters	Diagnosis Procedure	1	1			1	1	3	3	3	3	3	1	1	3
Stop lamp switch	Diagnosis Procedure	1	1	1	1	1	1	2	2	2	2	2	1	1	1	1	1	1	1
CAN communication	Trouble Diagnosis Flow Chart	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
TCM	Removal and Installation	2	2	2	2	2	2	2	3	3	3	3	1	1	1	1	1
Sensor unit (Dual speed sensor, A/T fluid temperautre sensor, Park position sensor) Dog clutch A position sensor	Sensor unit: Removal and Installation Dog clutch A positoin sensor: Removal and Installation	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Control valve (Each pressure regulator, parking lock valve, parking lock actuator)	Removal and Installation	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Transaxle assembly (Dog clutch F position sensor, Oil pump, Each clutch/brake, Planetary gear, Parking component)	Removal and Installation	3	3	3	3	3	3	3	3	3	3	3	2	2	3	3	3	3	3
Torque converter	Disassembly	3	3	3	3	3	3	3	3	3	3	3	2	2	3	3	3	3	3
Insufficient shift control learning	Refer to following.	3	3	1	1	1	1	1					2	2	1	3	3	3	3

Shifting control learning

This transmission learns to achieve optimum shifting by repeatedly shifting gears up and down while driving.

When a shift shock or lag occurs during driving, the following driving is performed to make the transmission learn shift control.

Reproduce the phenomenon complained by the customer.
The same conditions as the complaint phenomenon (gear position / engine speed / accelerator opening angle) are repeated about 10 times.

Periodic Maintenance. A/t Fluid Nissan Pathfinder R53

Inspection

FLUID LEAKAGE

Check transaxle surrounding area (oil seal and plug etc.) for fluid leakage.
If anything is found, repair or replace damaged parts and adjust A/T fluid level. Refer to Adjustment.

Replacement

A/T fluid	: Refer to General Specification.
Fluid capacity	: Refer to General Specification.

CAUTION:

Always use shop paper. Never use shop cloth.

Use caution when looking into the drain hole as there is a risk of dripping fluid entering the eye.

After replacement, always perform A/T fluid leak check.

Select “Data Monitor” in “TRANSMISSION” using CONSULT.

Select “FLUID TEMP” and confirm that the A/T fluid temperature is between 35°C and 45°C (95°F to 113°F).

Check that the selector lever is in the “P” position, then completely engage the parking brake.

Lift up the Nissan Pathfinder vehicle.

Remove the drain plug (1) and drain the A/T fluid from A/T case.

: Nissan Pathfinder Vehicle front

Install the drain plug to specified torque. Refer to Exploded View.

Remove the fill plug (1).

: Nissan Pathfinder Vehicle front

Install the charging pipe set (A/T stand pipe adapter kit) KV311039S0 (NI-52584) into the overflow plug hole.

CAUTION:

Tighten the charging pipe by hand.

Install the ATF changer hose to the charging pipe.

CAUTION:

Press the ATF changer hose all the way onto the charging pipe until it stops.

Fill approximately 7 liter (7-1/2 US qt, 6-1/4 lmp qt) of the A/T fluid.

Remove the ATF changer hose and charging pipe, then install and finger tighten the fill plug.

NOTE:

Perform this work quickly because A/T fluid leaks.

Start the engine.

Park the Nissan Pathfinder vehicle on a level surface with the engine running and parking brake set.

Using CONSULT-III plus, ensure that the A/T fluid temperature is between 95°F to 113°F (35°C to 45°C).

With Nissan Pathfinder vehicle in PARK and A/T fluid temperature in correct range, let engine run at 2000 rpm for about 10 seconds.

Shift the transmission into REVERSE for 10 seconds.

Shift the transmission into DRIVE for 10 seconds.

Shift the transmission into 1st for 10 seconds.

Shift the transmission into 2nd for 10 seconds.

Shift the transmission into 3rd for 10 seconds.

Shift the transmission into 4th for 10 seconds.

CAUTION:

Do not exceed 4th gear or transmission damage can occur.

Shift the transmission into NEUTRAL until wheels come to a complete stop.

Shift the transmission into PARK.

Lift up the Nissan Pathfinder vehicle.

Remove the fill plug (1).

: Nissan Pathfinder Vehicle front

If A/T fluid flows out of fill hole, let A/T fluid flow out until flow is reduced to a thin stream and then install fill plug and tighten to specification. If A/T fluid does not run out of fill hole repeat steps 1–18 adding small quantities of A/T fluid at a time.

Adjustment

A/T fluid	: Refer to General Specification.
Fluid capacity	: Refer to General Specification.

CAUTION:

During adjustment of the A/T fluid level, check CONSULT so that the oil temperature may be maintained from 35°C to 45°C (95°F to 113°F)

Use caution when looking into the drain hole as there is a risk of dripping fluid entering the eye.

After replacement, always perform A/T fluid leak check.

Remove the fill plug (1).

: Nissan Pathfinder Vehicle front

Install the charging pipe set (A/T stand pipe adapter kit) KV311039S0 (NI-52584) into the overflow plug hole.

CAUTION:

Tighten the charging pipe by hand.

Install the ATF changer hose to the charging pipe.

CAUTION:

Press the ATF changer hose all the way onto the charging pipe until it stops.

Fill A/T with small amount of the A/T fluid.

Remove the ATF changer hose and charging pipe, then install and finger tighten the fill plug.

NOTE:

Perform this work quickly because A/T fluid leaks.

Start the engine.

Park the Nissan Pathfinder vehicle on a level surface with the engine running and parking brake set.

Using CONSULT-III plus, ensure that the A/T fluid temperature is between 95°F to 113°F (35°C to 45°C).

With Nissan Pathfinder vehicle in PARK and A/T fluid temperature in correct range, let engine run at 2000 rpm for about 10 seconds.

Shift the transmission into REVERSE for 10 seconds.

Shift the transmission into DRIVE for 10 seconds.

Shift the transmission into 1st for 10 seconds.

Shift the transmission into 2nd for 10 seconds.

Shift the transmission into 3rd for 10 seconds.

Shift the transmission into 4th for 10 seconds.

CAUTION:

Do not exceed 4th gear or transmission damage can occur.

Shift the transmission into NEUTRAL until wheels come to a complete stop.

Shift the transmission into PARK.

Lift up the Nissan Pathfinder vehicle.

Remove the fill plug (1).

: Nissan Pathfinder Vehicle front

Unit Removal and Installation. Transaxle Assembly ➤ Nissan Pathfinder 5th Gen

Unit Disassembly and Assembly. Torque Converter and Converter Housing Oil Seal Nissan Pathfinder 5th Gen

Exploded View

Torque converter

Converter housing oil seal

Transaxle assembly

Disassembly

Never Reuse These Parts	Part # Prefix	For additional information:
Converter housing oil seal	31110	Exploded View

Remove transaxle assembly. Refer to Removal and Installation.

Remove torque converter from transaxle assembly.

CAUTION:

Do not damage the bushing on the inside of torque converter sleeve when removing torque converter.

Remove converter housing oil seal using suitable tool.

CAUTION:

Be careful not to scratch converter housing.

Assembly

Assembly is in the reverse order of disassembly.

CAUTION:

Do not reuse converter housing oil seal.

NOTE:

Lubricate converter housing oil seal prior to installation.

Drive converter housing oil seal (1) evenly using Tool (A) until converter housing oil seal is flush with transaxle assembly (2).

Tool (A) : — (J-53126)

Unit: mm (in)

Dimension (B) 1.0 ± 0.5 (0.039 ± 0.020)

NOTE:
Converter housing oil seal pulling direction is used as the reference.
Align grooves (A) of the torque converter to the drive sprocket hole gooves (B) on the transaxle assembly side.

CAUTION:

Inspection

INSPECTION AFTER INSTALLATION

After inserting torque converter to the A/T, check dimension (A) within the reference value limit.

B : Scale

C : Straightedge

Dimension (A) : Refer to Torque Converter.

Service Data and Specifications (SDS) Nissan Pathfinder 2022

General Specification

Applied model	Engine	VQ35DD
	Axle	2WD/4WD
Transmission model		GE9F01A
Transmission gear ratio	1st	4.713
	2nd	2.842
	3rd	1.909
	4th	1.382
	5th	1.000
	6th	0.808
	7th	0.699
	8th	0.580
	9th	0.480
	Reverse	3.830
	Final gear	4.334
A/T fluid	Recommended fluid	Nissan Matic R^*1
	Capacity (Approx.)	Without Tow Package	With Tow Package
		7.2 L (7-5/8 US qt, 6-3/8 lmp qt)^*2	7.5 L (7-7/8 US qt, 6-5/8 lmp qt)^*2

*1: Always use the designated stock of A/T fluid. Using or mixing A/T fluid other than the designated stock or using it incorrectly could result in an inability to achieve original performance, or may cause a serious accident.

*2: The A/T fluid amount is only a guide.

Vehicle Speed at Which Gear Shifting Occurs

STANDARD/SPORT/ECO

Unit: km/h (MPH)

Gear position	Accelerator pedal
Gear position	100%	50%
D1 → D2	41 – 46 (25 – 29)	26 – 36 (16 – 22)
D2 → D3	70– 75 (43– 47)	45 – 66 (28 – 41)
D3 → D4	103– 108 (64– 67)	70 – 108 (43 – 67)
D4 → D5	143– 148 (89– 92)	97 – 148 (60 – 92)
D5 → D6	187– 192 (116– 119)	127 – 193 (79 – 120)
D6 → D7	232– 237 (144– 147)	151 – 237 (94 – 147)
D7 → D8	262 – 267 (163 – 166)	171 – 267 (106 – 166)
D8 → D9	262 – 267 (163– 166)	198 – 267 (123 – 166)
D9 → D8	234 – 307 (145 – 191)	178 – 248 (111 – 154)
D8 → D7	243 – 255 (151 – 158)	155 – 248 (96 – 154)
D7 → D6	209 – 221 (130 – 137)	133 – 184 (83 – 114)
D6 → D5	168 – 179 (104 – 111)	108 – 148 (67 – 92)
D5 → D4	121 – 130 (75 – 81)	71 – 109 (44 – 68)
D4 → D3	93 – 97 (58 – 60)	53 – 73 (33 – 45)
D3 → D2	53 – 64 (33 – 40)	36 – 46 (22 – 29)
D2 → D1	16 – 35 (10 – 22)	1 – 20 (1 – 12)