2003 NISSAN X-TRAIL clutch

AT-6
TROUBLE DIAGNOSIS — INDEX

TROUBLE DIAGNOSIS — INDEXPFP:00000
Alphabetical & P No. Index for DTCECS003VK
ALPHABETICAL INDEX FOR DTC
NOTE:

Check if the vehicle is a model with Euro-OBD system or not by the “Type approval number” on
the identification plate. Refer to GI-44, "
IDENTIFICATION PLATE".

If DTC “U1000” is displayed with other DTC, first perform the trouble diagnosis for “DTC U1000
CAN COMMUNICATION LINE”. Refer to AT- 9 7 , "
DTC U1000 CAN COMMUNICATION LINE" .

*1: These numbers are prescribed by SAE J2012.Type approval number Model
Available With Euro-OBD system
Not available (blank) Without Euro-OBD system
Items
(CONSULT-II screen terms)DTC
Reference page
CONSULT-II
GST*1
A/T 1ST GR FNCTN P0731AT-125
A/T 2ND GR FNCTN P0732AT-130
A/T 3RD GR FNCTN P0733AT-135
A/T 4TH GR FNCTN P0734AT-140
ATF TEMP SEN/CIRC P0710AT-106
BATT/FLUID TEMP SEN —AT-184
CAN COMM CIRCUIT U1000AT- 9 7
CONTROL UNIT (RAM) —AT-198
CONTROL UNIT (ROM) —AT-198
CONT UNIT (EEP ROM) —AT-200
ENGINE SPEED SIG P0725AT- 11 9
INITIAL START — —
LINE PRESSURE S/V P0745AT-154
OVERRUN CLUTCH S/V P1760AT-178
PNP SW/CIRC P0705AT-100
SHIFT SOLENOID/V A P0750AT-161
SHIFT SOLENOID/V B P0755AT-167
T/C CLUTCH SOL/V P0740AT-148
THROTTLE POSI SEN P1705AT-173
VHCL SPEED SEN·A/T P0720AT- 11 2
VHCL SPEED SEN·MTR —AT-192

TROUBLE DIAGNOSIS — INDEX
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P NO. INDEX FOR DTC
NOTE:

Check if the vehicle is a model with Euro-OBD system or not by the “Type approval number” on
the identification plate. Refer to GI-44, "
IDENTIFICATION PLATE" .

If DTC “U1000” is displayed with other DTC, first perform the trouble diagnosis for “DTC U1000
CAN COMMUNICATION LINE”. Refer to AT- 9 7 , "
DTC U1000 CAN COMMUNICATION LINE" .

*1: These numbers are prescribed by SAE J2012.Type approval number Model
Available With Euro-OBD system
Not available (blank) Without Euro-OBD system
DTC
Items
(CONSULT-II screen terms)Reference page
CONSULT-II
GST*1
P0705 PNP SW/CIRCAT- 1 0 0
P0710 ATF TEMP SEN/CIRCAT- 1 0 6
P0720 VHCL SPEED SEN·A/TAT- 11 2
P0725 ENGINE SPEED SIGAT- 11 9
P0731 A/T 1ST GR FNCTNAT- 1 2 5
P0732 A/T 2ND GR FNCTNAT- 1 3 0
P0733 A/T 3RD GR FNCTNAT- 1 3 5
P0734 A/T 4TH GR FNCTNAT- 1 4 0
P0740 T/C CLUTCH SOL/VAT- 1 4 8
P0745 LINE PRESSURE S/VAT- 1 5 4
P0750 SHIFT SOLENOID/V AAT- 1 6 1
P0755 SHIFT SOLENOID/V BAT- 1 6 7
P1705 THROTTLE POSI SENAT- 1 7 3
P1760 OVERRUN CLUTCH S/VAT- 1 7 8
U1000 CAN COMM CIRCUITAT- 9 7
— BATT/FLUID TEMP SENAT- 1 8 4
— CONTROL UNIT (RAM)AT- 1 9 8
— CONTROL UNIT (ROM)AT- 1 9 8
— CONT UNIT (EEP ROM)AT- 2 0 0
— INITIAL START —
— VHCL SPEED SEN·MTRAT- 1 9 2

AT-10
PRECAUTIONS


After performing each TROUBLE DIAGNOSIS, perform
“DTC (Diagnostic Trouble Code) CONFIRMATION PROCE-
DURE”.
The DTC should not be displayed in the “DTC Confirmation
Procedure” if the repair is completed.

Before proceeding with disassembly, thoroughly clean the out-
side of the transaxle. It is important to prevent the internal parts
from becoming contaminated by dirt or other foreign matter.

Disassembly should be done in a clean work area.

Use lint-free cloth or towels for wiping parts clean. Common
shop rags can leave fibers that could interfere with the operation
of the transaxle.

Place disassembled parts in order for easier and proper assembly.

All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or
reassembly.

Gaskets, seals and O-rings should be replaced any time the transaxle is disassembled.

It is very important to perform functional tests whenever they are indicated.

The valve body contains precision parts and requires extreme care when parts are removed and serviced.
Place disassembled valve body parts in order for easier and proper assembly. Care will also prevent
springs and small parts from becoming scattered or lost.

Properly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.

Before assembly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to protect O-rings
and seals, or hold bearings and washers in place during assembly. Do not use grease.

Extreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.

After overhaul, refill the transaxle with new ATF.

When the A/T drain plug is removed, only some of the fluid is drained. Old A/T fluid will remain in torque
converter and ATF cooling system.
Always follow the procedures under “Changing A/T Fluid” in the AT section when changing A/T fluid. Refer
to “Changing A/T Fluid”, AT- 1 6 , "
A/T FLUID" .
Service Notice or PrecautionsECS004Q3
FAIL -SAF E
The TCM has an electronic Fail-Safe (limp home mode). This allows the vehicle to be driven even if a major
electrical input/output device circuit is damaged.
Under Fail-Safe, the vehicle always runs in third gear, even with a shift lever position of “1”, “2” or “D”. The cus-
tomer may complain of sluggish or poor acceleration.
When the ignition key is turned “ON” following Fail-Safe operation, O/D OFF indicator lamp blinks for about 8
seconds. Refer to AT- 2 4 6 , "
SELF-DIAGNOSTIC PROCEDURE (WITHOUT CONSULT-II)" (EXCEPT FOR
EURO-OBD) or AT- 5 2 , "
TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)" (EURO-OBD).
The blinking of the O/D OFF indicator lamp for about 8 seconds will appear only once and be cleared. The
customer may resume normal driving conditions.
Always follow the “WORK FLOW”, refer to AT- 2 5 5 , "
Work Flow" (EXCEPT FOR Euro-OBD) or AT- 6 1 , "Work
Flow" (Euro-OBD).
The SELF-DIAGNOSIS results will be as follows:

The first SELF-DIAGNOSIS will indicate damage to the vehicle speed sensor or the revolution sensor.

During the next SELF-DIAGNOSIS, performed after checking the sensor, no damages will be indicated.
TORQUE CONVERTER SERVICE
The torque converter should be replaced under any of the following conditions:

External leaks in the hub weld area.

Converter hub is scored or damaged.

Converter pilot is broken, damaged or fits poorly into crankshaft.

Steel particles are found after flushing the cooler and cooler lines.

Pump is damaged or steel particles are found in the converter.

Vehicle has TCC shudder and/or no TCC apply. Replace only after all hydraulic and electrical diagnoses
have been made. (Converter clutch material may be glazed.)
SAT652J

PRECAUTIONS
AT-11
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Converter is contaminated with engine coolant containing antifreeze.

Internal failure of stator roller clutch.

Heavy clutch debris due to overheating (blue converter).

Steel particles or clutch lining material found in fluid filter or on magnet when no internal parts in unit are
worn or damaged — indicates that lining material came from converter.
The torque converter should not be replaced if:

The fluid has an odor, is discolored, and there is no evidence of metal or clutch facing particles.

The threads in one or more of the converter bolt holes are damaged.

Transaxle failure did not display evidence of damaged or worn internal parts, steel particles or clutch plate
lining material in unit and inside the fluid filter.

Vehicle has been exposed to high mileage (only). The exception may be where the torque converter
clutch dampener plate lining has seen excess wear by vehicles operated in heavy and/or constant traffic,
such as taxi, delivery or police use.
EURO-OBD SELF-DIAGNOSIS — EURO-OBD —

A/T self-diagnosis is performed by the TCM in combination with the ECM. The results can be read through
the blinking pattern of the O/D OFF indicator lamp or the malfunction indicator lamp (MIL). Refer to the
table on AT- 4 5 , "
SELF-DIAGNOSTIC RESULT TEST MODE" for the indicator used to display each self-
diagnostic result.

The self-diagnostic results indicated by the MIL are automatically stored in both the ECM and TCM mem-
ories.
Always perform the procedure “HOW TO ERASE DTC” on AT- 4 2 , "
HOW TO ERASE DTC" to com-
plete the repair and avoid unnecessary blinking of the MIL.

The following self-diagnostic items can be detected using ECM self-diagnostic results mode* only when
the O/D OFF indicator lamp does not indicate any malfunctions.
–PNP switch
–A/T 1st, 2nd, 3rd, or 4th gear function
*: For details of EURO-OBD, refer to EC-51, "
ON BOARD DIAGNOSTIC (OBD) SYSTEM" .

Certain systems and components, especially those related to EURO-OBD, may use a new style
slide-locking type harness connector.
For description and how to disconnect, refer to PG-70, "
HARNESS CONNECTOR" .
Wiring Diagrams and Trouble DiagnosisECS004Q4
When you read wiring diagrams, refer to the following:

GI-14, "How to Read Wiring Diagrams"

PG-2, "POWER SUPPLY ROUTING"
When you perform trouble diagnosis, refer to the following:

GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES"

GI-23, "How to Perform Efficient Diagnosis for an Electrical Incident"

PREPARATION
AT-13
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ST25710000
Pin punch
Aligning groove of manual shaft and hole of
transmission case
a: 2 mm (0.08 in) dia.
KV32101000
Pin punch

Removing and installing manual shaft retaining pin

Removing and installing pinion mate shaft lock pin
a: 4 mm (0.16 in) dia.
KV31102400
Clutch spring compressor

Removing and installing clutch return springs

Installing low and reverse brake piston
a: 320 mm (12.60 in)
b: 174 mm (6.85 in)
KV40100630
Drift

Installing reduction gear bearing inner race

Installing idler gear bearing inner race
a: 67.5 mm (2.657 in) dia.
b: 44 mm (1.73 in) dia.
c: 38.5 mm (1.516 in) dia.
ST30720000
Bearing installer

Installing idler gear bearing outer race
a: 77 mm (3.03 in) dia.
b: 55.5 mm (2.185 in) dia.
ST35321000
Drift

Installing output shaft bearing
a: 49 mm (1.93 in) dia.
b: 41 mm (1.61 in) dia.
ST33230000
Drift

Installing differential side bearing inner race
a: 51 mm (2.01 in) dia.
b: 28.5 mm (1.122 in) dia. Tool number
Tool nameDescription
NT410
NT410
NT423
NT107
NT115
NT073
NT084

A/T FLUID
AT-17
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6. Check A/T fluid condition.

If A/T fluid is very dark or smells burned, checking operation
of A/T. Flush cooling system after repair of A/T.

If A/T fluid contains frictional material (clutches, bands, etc.),
replace radiator and flush cooler line using cleaning solvent
and compressed air after repair of A/T. Refer to CO-12,
"RADIATOR" , CO-14, "RADIATOR (ALUMINUM TYPE)" .
7. Install the removed A/T fluid level gauge in the A/T fluid charging
pipe.
CAUTION:
Firmly fix the A/T fluid level gauge to the A/T fluid charging
pipe using a stopper attached.
Changing A/T FluidECS004Q8
1. Warm up A/T fluid.
2. Stop engine.
3. Drain A/T fluid from drain plug and refill with new A/T fluid. Always refill same volume with drained fluid.
Refer to MA-17, "
RECOMMENDED FLUIDS AND LUBRICANTS" .
CAUTION:
Do not reuse drain plug gasket.
4. Run engine at idle speed for five minutes.
5. Check A/T fluid level and condition. Refer to AT- 1 6 , "
Checking
A/T Fluid" . If A/T fluid is still dirty, repeat steps 2 through 5.
SAT638A
Fluid capacity (With torque converter):
Approx. 8.5 (7-1/2 lmp qt)
Drain plug:
: 34 N·m (3.5 kg-m, 25 ft-lb)
SMA027D

AT-18
OVERALL SYSTEM

OVERALL SYSTEMPFP:00000
Cross-Sectional View ECS00CTA
SCIA0688E
1. Band servo piston 2. Reverse clutch drum 3. Converter housing
4. Oil pump 5. Brake band 6. Reverse clutch
7. High clutch 8. Front planetary gear 9. Low one-way clutch
10. Rear planetary gear 11. Forward clutch 12. Overrun clutch
13. Low & reverse brake 14. Output gear 15. Idler gear
16. Forward one-way clutch 17. Pinion reduction gear 18. Final gear
19. Differential case 20. Input shaft 21. Torque converter
22. Side cover

AT-22
OVERALL SYSTEM

Shift MechanismECS004QD
CONSTRUCTION
FUNCTION OF CLUTCH AND BRAKE
1. Torque converter 2. Oil pump 3. Input shaft
4. Brake band 5. Reverse clutch 6. High clutch
7. Front sun gear 8. Front pinion gear 9. Front internal gear
10. Front planetary carrier 11. Rear sun gear 12. Rear pinion gear
13. Rear internal gear 14. Rear planetary carrier 15. Forward clutch
16. Forward one-way clutch 17. Overrun clutch 18. Low one-way clutch
19. Low & reverse brake 20. Parking pawl 21. Parking gear
22. Output shaft 23. Idle gear 24. Output gear
SAT998I
Clutch and brake components Abbr. Function
5 Reverse clutch R/C To transmit input power to front sun gear 7 .
6 High clutch H/C To transmit input power to front planetary carrier 10 .
15 Forward clutch F/C To connect front planetary carrier 10 with forward one-way clutch 16 .
17 Overrun clutch O/C To connect front planetary carrier 10 with rear internal gear 13 .
4 Brake band B/B To lock front sun gear 7 .
16 Forward one-way clutch F/O.C When forward clutch 15 is engaged, to stop rear internal gear 13 from rotating in
opposite direction against engine revolution.
18 Low one-way clutch L/O.C To stop front planetary carrier 10 from rotating in opposite direction against
engine revolution.
19 Low & reverse brake L & R/B To lock front planetary carrier 10 .