2003 NISSAN X-TRAIL stop start

DTC P0734 A/T 4TH GEAR FUNCTION
AT-141
[EURO-OBD]
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Possible CauseECS00CU2
Check the following items.

Shift solenoid valve A

Shift solenoid valve B

Line pressure solenoid valve

Each clutch

Hydraulic control circuit
DTC Confirmation ProcedureECS00CU3
CAUTION:

Always drive vehicle at a safe speed.

If conducting this “DTC Confirmation Procedure” again, always turn ignition switch “OFF” and
wait at least 5 seconds before continuing.

Be careful not to rev engine into the red zone on the tachometer.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and
wait at least 5 seconds before conducting the next test.
TESTING CONDITION:
Always drive vehicle on a level road to improve the accuracy of test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Start engine and select “DATA MONITOR” mode for “A/T” with
CONSULT-II.
2. Make sure that output voltage of A/T fluid temperature sensor is
within the range below.
FLUID TEMP SEN: 0.4 - 1.5V
If out of range, drive the vehicle to decrease the voltage (warm
up the fluid) or stop engine to increase the voltage (cool down
the fluid).
3. Select “4TH GR FNCTN P0734” of “DTC WORK SUPPORT”
mode for “A/T” with CONSULT-II and touch “START”.
4. Accelerate vehicle to 55 to 65 km/h (34 to 40 MPH) under the
following condition and release the accelerator pedal com-
pletely.
THROTTLE POSI: Less than 5.5/8 (at all times during step 4)
Selector lever: D position (OD “ON”)
–Check that “GEAR” shows “3” after releasing pedal.
5. Depress accelerator pedal steadily with 1.0/8 - 2.0/8 of “THROT-
TLE POSI” from a speed of 55 to 65 km/h (34 to 40 MPH) until
“TESTING” has turned to “STOP VEHICLE” or “COMPLETED”.
(It will take approximately 3 seconds.)
If the check result NG appears on CONSULT-II screen, go to AT-
144, "Diagnostic Procedure" .
If “STOP VEHICLE” appears on CONSULT-II screen, go to following step.
–Check that “GEAR” shows “4” when depressing accelerator pedal with 1.0/8 - 2.0/8 of “THROTTLE
POSI”.
SAT014K
SCIA5358E

AT-256
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — BASIC INSPECTION

TROUBLE DIAGNOSIS — BASIC INSPECTIONPFP:00000
A/T Fluid CheckECS004VR
FLUID LEAKAGE CHECK
1. Clean area suspected of leaking. — for example, mating surface
of converter housing and transmission case.
2. Start engine, apply foot brake, place selector lever in D position
and wait a few minutes.
3. Stop engine.
4. Check for fresh leakage.
FLUID CONDITION CHECK
FLUID LEVEL CHECK
Refer to AT- 1 6 , "Checking A/T Fluid" .
SAT767B
SAT288G
Fluid color Suspected problem
Dark or black with burned odor Wear of frictional material
Milky pink Water contamination — Road water
entering through filler tube or breather
Varnished fluid, light to dark brown and
tackyOxidation — Over or under filling, —
Overheating
SAT638A

TROUBLE DIAGNOSIS — BASIC INSPECTION
AT-263
[EXC.F/EURO-OBD]
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1. CHECK BEFORE ENGINE IS STARTED
1. CHECK O/D OFF INDICATOR LAMP
1. Park vehicle on flat surface.
2. Move selector lever to P position.
3. Turn ignition switch to OFF position.
4. Wait 5 seconds.
5. Set overdrive control switch to ON position.
6. Turn ignition switch to ON. (Do not start engine.)
Does O/D OFF indicator lamp come on for about 2 seconds?
YES >> 1. Turn ignition switch to OFF position.
2. Perform self-diagnosis and note NG items.
Refer to AT- 2 4 6 , "
SELF-DIAGNOSTIC PROCEDURE
(WITHOUT CONSULT-II)" .
3. GO TO “2. CHECK AT IDLE”, AT- 2 6 4
.
NO >> Stop road test. GO TO “O/D OFF indicator Lamp Does
Not Come On”. AT- 2 9 1
.
SAT774B
SCIA5468E

AT-264
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — BASIC INSPECTION

2. CHECK AT IDLE
1. CHECK ENGINE START
1. Park vehicle on flat surface.
2. Move selector lever to P or N position.
3. Turn ignition switch to OFF position.
4. Turn ignition switch to START position.
Is engine started?
YES >> GO TO 2.
NO >>

Stop Road Test. Mark the box on the DIAGNOSTIC
WORKSHEET. Refer to AT- 2 5 2 , "
DIAGNOSTIC
WORKSHEET" .

GO TO AT- 2 9 3 , "Engine Cannot Be Started In “P” and
“N” Position" .
2. CHECK ENGINE START
1. Turn ignition switch to ON position. (Do not start engine.)
2. Move selector lever to D, 1, 2 or R position.
3. Turn ignition switch to START.
Is engine started?
YES >>
Stop Road Test. Mark the box on the DIAGNOSTIC
WORKSHEET. Refer to AT- 2 5 2 , "
DIAGNOSTIC
WORKSHEET" .

GO TO AT- 2 9 3 , "Engine Cannot Be Started In “P” and
“N” Position" .

Continue Road Test. Refer to AT- 2 6 2 , "Road Test" .
NO >> GO TO 3.
3. CHECK VEHICLE MOVE
1. Move selector lever to P position.
2. Turn ignition switch to OFF position.
3. Release parking brake.
4. Push vehicle forward or backward.
Does vehicle move when it is pushed forward or backward?
YES >>
Mark the box on the DIAGNOSTIC WORKSHEET.
Refer to AT- 2 5 2 , "
DIAGNOSTIC WORKSHEET" .

GO TO AT- 2 9 4 , "In “P” Position, Vehicle Moves For-
ward Or Backward When Pushed" .

Continue Road Test.
NO >> GO TO 4.
SAT769B
SAT770B
SAT768B
SAT796A

AT-268
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — BASIC INSPECTION

9. Touch “SETTING” to recording condition (“AUTO TRIG” or
“MANU TRIG”) and touch “BACK”.
10. Touch “Start”.
11. When performing cruise test, touch “RECORD”.
12. After finishing cruise test part 1, touch “STOP”.
13. Touch “STORE” and touch “BACK”.
SAT973J
SAT134K
SAT135K
SAT987J

AT-394
[ALL]
MAIN POWER SUPPLY AND GROUND CIRCUIT

MAIN POWER SUPPLY AND GROUND CIRCUITPFP:00100
DescriptionECS00CS1
When the power supply to the TCM is cut OFF, for example because the battery is removed, and the self-diag-
nostics memory function stops, malfunction is detected.
On Board Diagnosis LogicECS00CS2

Diagnostic trouble code “INITIAL START” with CONSULT-II is detected when TCM dose not receive the
voltage signal from the battery power supply.

This is not a malfunction message. (Whenever shutting “OFF” a power supply to the TCM, this message
appears on the screen.)
Possible CauseECS00CS3
Harness or connector
(Battery or ignition switch and TCM circuit is open or shorted.)
DTC Confirmation ProcedureECS00CS4
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Wait for at least 2 consecutive seconds.
4. If DTC is detected, go to AT- 3 9 6 , "
Diagnostic Procedure" .
SAT014K

REMOVAL AND INSTALLATION
AT-413
[ALL]
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REMOVAL AND INSTALLATIONPFP:00000
RemovalECS004NC
COMPONENTS
CAUTION:
Before separating transaxle from engine, remove the crankshaft position sensor (Euro-OBD) from
transaxle. Be careful not to damage sensor.
1. Remove battery and bracket, air cleaner and air duct.
2. Remove air breather hose.
3. Disconnect terminal cord assembly harness connector, PNP switch harness connector and revolution
sensor harness connector.
4. Remove crankshaft position sensor (Euro-OBD) from transaxle.
5. Disconnect control cable from transaxle.
6. Remove front exhaust tube. Refer to EX-2, "
Removal and Installation"
7. Disconnect A/T fluid cooler hoses.
8. Remove drive shafts. Refer to FAX-11, "
FRONT DRIVE SHAFT" , RAX-10, "REAR DRIVE SHAFT" .
9. Remove transfer assembly. Refer to TF-55, "
Removal and Installation" .
10. Remove starter motor from transaxle. Refer to SC-25, "
Removal and Installation" .
11. Support transaxle with a transmission jack.
1. Transfer assembly 2. A/T fluid level gauge 3. A/T fluid charging pipe
4. O-ring 5. Center member 6. Front engine mounting insulator
7. Grommet 8. Fluid cooler tube 9. Fluid cooler tube
10. Copper washer 11. Copper washer 12. Transaxle assembly
13. Stopper 14. LH engine mounting insulator
SCIA5739E

TRANSFER OIL
TF-9
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TRANSFER OILPFP:KLD30
ReplacementEDS001W2
DRAINING
CAUTION:
When draining oil, protect exhaust tube with cover.
1. Run the vehicle to warm up the transfer body sufficiently.
2. Stop engine, and remove drain plug to drain transfer oil.
3. Apply sealant to drain plug. Install drain plug on transfer and
tighten to the specified torque. Refer to TF-57, "
COMPO-
NENTS" .
FILLING
1. Remove filler plug and add gear oil until oil level reaches the
specified limit near filler plug mounting hole.
CAUTION:
Carefully fill the oil. (Fill up for approx. 3 minutes)
2. Leave the vehicle for 3 minutes, and check the oil level again.
3. Apply recommended sealant to filler plug. Install filler plug on
transfer and tighten to the specified torque. Refer to TF-57, "
COMPONENTS" .
InspectionEDS001W3
OIL LEAKAGE AND OIL LEVEL
1. Check oil level from filler plug mounting hole as shown in the fig-
ure.
CAUTION:
Do not start engine while checking oil level.
2. Before installing filler plug, apply sealant. Install filler plug on
transfer and tighten to the specified torque. Refer to TF-57,
"COMPONENTS" .
SDIA0512E
Oil grade and Viscosity
: Refer to MA-17, "
Fluids and Lubricants" .
Oil capacity
: Approx. 0.31 (1/2 lmp pt)
SDIA0513E
SDIA0513E