2001 NISSAN X-TRAIL check engine

CAN COMMUNICATION LINE
AT-405
[ALL]
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Diagnostic ProcedureECS004UN
1.CHECK CAN COMMUNICATION CIRCUIT
With CONSULT-II
1. Turn ignition switch to “ON” position. (Do not start engine.)
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. The “CON COMM CIRCUIT” is detected.
Ye s o r N o ?
Yes >> Print out CONSULT-II screen, GO TO 2.
NG >>INSPECTION END
2.CHECK CAN COMMUNICATION SIGNALS
With CONSULT-II
1. Turn ignition switch to “ON” position. (Do not start engine.)
2. Select “CAN COMM SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
>> Print out CONSULT-II screen, go to LAN-5, "
CAN SYSTEM (FOR A/T MODELS)"
CAN Communication Signals
PCIA0061E
Normal conditions Abnormal conditions (examples)
CAN COMM: OK CAN COMM: OK
CAN CIRC 1: OK CAN CIRC 1: UNKWN
CAN CIRC 2: OK CAN CIRC 2: UNKWN
CAN CIRC 3: OK CAN CIRC 3: UNKWN
CAN CIRC 4: OK CAN CIRC 4: UNKWN
CAN CIRC 5: UNKWN CAN CIRC 5: UNKWN

AT-408
[ALL]
A/T SHIFT LOCK SYSTEM
Diagnostic Procedure
ECS00408
SYMPTOM 1:
●Selector lever cannot be moved from “P” position with key in ON position and brake pedal
applied.
●Selector lever can be moved from “P” position with key in ON position and brake pedal released.
●Selector lever can be moved from “P” position when key is removed from key cylinder.
SYMPTOM 2:
●Ignition key cannot be removed when selector lever is set to “P” position.
●Ignition key can be removed when selector lever is set to any position except “P”.
1. CHECK KEY INTERLOCK CABLE
Check key interlock cable for damage.
OK or NG
OK >> GO TO 2.
NG >> Repair key interlock cable. Refer to AT- 4 1 2 , "
KEY INTERLOCK CABLE" .
2. CHECK SELECTOR LEVER POSITION
Check selector lever position for damage.
OK or NG
OK >> GO TO 3.
NG >> Check selector lever. Refer to AT- 4 1 6 , "
Park/Neutral Position (PNP) Switch Adjustment" .
3. CHECK POWER SOURCE
1. Turn ignition switch to “ON” position.
(Do not start engine.)
2. Check voltage between A/T device harness connector M58 ter-
minal 5 (G) and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. DETECT MALFUNCTIONING ITEM
Check the following items:
1. Harness for short or open between ignition switch and A/T device harness terminal 5
2. Fuse
3. Ignition switch (Refer to PG-2, "
POWER SUPPLY ROUTING" .)
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.Voltage: Battery voltage
SCIA1165E

A/T SHIFT LOCK SYSTEM
AT-411
[ALL]
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10.CHECK SHIFT LOCK OPERATION
1. Reconnect shift lock harness connector.
2. Turn ignition switch from “OFF” to “ON” position. (Do not start engine.)
3. Recheck shift lock operation.
OK or NG
OK >>INSPECTION END
NG >> GO TO 11.
11 . CHECK A/T DEVICE INSPECTION
1. Perform A/T device input/output signal inspection test.
2. If NG, recheck harness connector connection.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.

REMOVAL AND INSTALLATION
AT-419
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12. Remove center member, engine insulator and engine mounting
bracket.
●Tighten center member fixing bolts to specified torque, Refer
to EM-69, "
ENGINE ASSEMBLY" .
13. Remove suspension member. Refer to FSU-12, "
FRONT SUS-
PENSION MEMBER" .
14. Remove dust cover from converter housing.
Rotate crankshaft to gain access to securing bolts.
15. Remove securing bolts between drive plate and torque con-
verter. When crank shaft rotates, turn to right at the front side of
engine.
16. Support engine with a jack.
17. Remove bolts fixing transaxle to engine.
18. Lower transaxle while supporting it with a jack.
InstallationECS004ND
1. When connecting torque converter to transaxle, measure dis-
tance “A” to be certain that they are correctly assembled.
2. Install torque converter to drive plate.
●With converter installed, rotate crankshaft several turns
to check that transaxle rotates freely without binding.
SCIA0794E
AAT259A
Distance “A”
QR20DE : 19 mm (0.75 in) or more
QR25DE : 14 mm (0.55 in) or more
SAT573D
AAT266A

AT-420
[ALL]
REMOVAL AND INSTALLATION
3. Tighten belts fixing transaxle.
4. Reinstall any part removed.
5. Adjust control cable. Refer to AT- 4 1 6 , "
Control Cable Adjust-
ment" .
6. Check continuity of PNP switch. Refer to AT- 11 0 , "
DTC P0705
PARK/NEUTRAL POSITION (PNP) SWITCH" .
7. Refill transaxle with ATF and check fluid level.
8. Move selector lever through all positions to be sure that tran-
saxle operates correctly. With parking brake applied, idle
engine. Move selector lever through “N” to “D”, to “2”, to “1” and
“R” positions. A slight shock should be felt through the hand
gripping the selector each time the transaxle is shifted.
9. Perform road test. Refer to AT-68, "
Road Test" .
Bolt No.Tightening torque
N·m (kg-m, ft-lb)Bolt length “ L ”
mm (in)
1
69.6 - 79.4 (7.1 - 8.1, 51.4 - 58.6)49 (1.93)
2 45 (1.77)
3
39.2 - 46.1 (4.0 - 4.7, 29.0 - 34.0)40 (1.57)
4 30 (1.18)
5
30.4 - 40.2 (3.1 - 4.1, 22.4 - 29.7)40 (1.57)
6 45 (1.97)
SCIA0795E
SAT638A

AT-522
[ALL]
SERVICE DATA AND SPECIFICATIONS (SDS)
Stall Revolution
ECS004MK
Line PressureECS004ML
Control ValvesECS004MM
CONTROL VALVE AND PLUG RETURN SPRINGS
For 85X23 model
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information. EngineStall revolutio n
rpm
QR20DE 2,450 - 2,950
QR25DE 2,300 - 2,750
Engine speed
rpmLine pressure kPa (kg/cm2 , psi)
D, 2 and 1 positions R position
Idle 500 (5.1, 73) 778 (7.9, 113)
Stall 1,233 (12.6, 179) 1,918 (19.6, 278)
PartsItem
Part No.* Free length Outer diameter
Upper body23 Pilot valve spring 31742-3AX03 38.98 (1.535) 8.9 (0.350)
7 1-2 accumulator valve spring 31742-3AX00 20.5 (0.807) 6.95 (0.274)
28 1-2 accumulator piston spring 31742-85X02 55.60 (2.189) 19.6 (0.772)
33 1st reducing valve spring 31742-80X05 27.0 (1.063) 7.0 (0.276)
35 3-2 timing valve spring 31736-01X00 23.0 (0.906) 6.65 (0.262)
18 Overrun clutch reducing valve spring 31742-80X15 37.5 (1.476) 6.9 (0.272)
16 Torque converter relief valve spring 31742-80X07 31.0 (1.220) 9.0 (0.354)
11 Torque converter clutch control valve 31742-85X00 56.98 (2.243)6.5 (0.256)
3 Cooler check valve spring 31742-85X01 29.4 (1.157) 6.0 (0.236)
Lower body15 Pressure regulator valve spring 31742-80X13 45.0 (1.772) 15.0 (0.591)
20 Overrun clutch control valve spring 31762-80X00 21.7 (0.854) 7.0 (0.276)
24 Accumulator control valve spring 31742-80X02 22.0 (0.866) 6.5 (0.256)
29 Shift valve A spring 31762-80X00 21.7 (0.854) 7.0 (0.276)
32 Shuttle valve spring 31762-41X04 51.0 (2.008) 5.65 (0.222)
12 Shift valve B spring 31762-80X00 21.7 (0.854) 7.0 (0.276)
7
Pressure modifier valve spring31742-41X15 30.5 (1.201) 9.8 (0.386)
3 31742-80X16 32.0 (1.260) 6.9 (0.272)
— Oil cooler relief valve spring 31872-31X00 17.02 (0.670) 8.0 (0.315)

AT-530
[ALL]
SERVICE DATA AND SPECIFICATIONS (SDS)
BEARING RACE FOR ADJUSTING TOTAL END PLAY
*: Always check with the Parts Department for the latest parts information.
Reverse Clutch End PlayECS004MX
THRUST WASHERS FOR ADJUSTING REVERSE CLUTCH DRUM END PLAY
*: Always check with the Parts Department for the latest parts information.
Removal and InstallationECS004MY
Unit: mm (in)
Shift Solenoid ValvesECS004MZ
Solenoid ValvesECS004N0
Thickness mm (in) Part number*
0.8 (0.031)
1.0 (0.039)
1.2 (0.047)
1.4 (0.055)
1.6 (0.063)
1.8 (0.071)
2.0 (0.079)
0.9 (0.035)
1.1 (0.043)
1.3 (0.051)
1.5 (0.059)
1.7 (0.067)
1.9 (0.075)31435-80X00
31435-80X01
31435-80X02
31435-80X03
31435-80X04
31435-80X05
31435-80X06
31435-80X09
31435-80X10
31435-80X11
31435-80X12
31435-80X13
31435-80X14
Reverse clutch end play mm (in) 0.55 - 0.90 (0.0217 - 0.0354)
Thickness mm (in) Part number*
0.80 (0.0315)
0.95 (0.0374)
1.10 (0.0433)
1.25 (0.0492)
1.40 (0.0551)
1.55 (0.0610)
1.70 (0.0669)
1.85 (0.0728)31508-80X13
31508-80X14
31508-80X15
31508-80X16
31508-80X17
31508-80X18
31508-80X19
31508-80X20
Engine Distance between end of converter housing and torque converter
QR20DE19 (0.75)
QR25DE14 (0.55)
Gear position 1 2 3 4
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)
Solenoid valves Resistance (Approx.)ΩTerminal No.
Shift solenoid valve A 20 - 30 2
Shift solenoid valve B 5 - 20 1
Overrun clutch solenoid valve 20 - 30 3
Line pressure solenoid valve 2.5 - 5 4
Torque converter clutch solenoid valve 5 - 20 5

TF-8
TRANSFER FLUID
TRANSFER FLUID
PFP:KLD30
ReplacementEDS0004Q
DRAINING
1. Run the vehicle to warm up the transfer body sufficiently.
2. Stop the engine, and remove the drain plug to drain the transfer
oil.
3. Apply recommended sealant to drain plug. Position drain plug
on transfer and tighten to the specified torque.
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. Position filler plug on
transfer and tighten to the specified torque.
InspectionEDS0004R
OIL LEAKAGE AND OIL LEVEL
1. Check oil level from filler plug mounting hole as shown in the fig-
ure.
2. Before installing filler plug, apply recommended sealant. Posi-
tion filler plug on transfer and tighten to the specified torque. Drain plug tightening torque
: 9.8 - 19.6 N·m (1.0 - 1.9 kg-m, 87 -173 in-lb)
SDIA0512E
Oil capacity
: Approx. 0.31 (1/2 lmp pt)
Drain plug tightening torque
: 9.8 - 19.6 N·m (1.0 - 1.9 kg-m, 87 -173 in-lb)
SDIA0513E
Filler plug tightening torque
: 9.8 - 19.6 N·m (1.0 - 1.9 kg-m, 87 -173 in-lb)
SDIA0513E