2003 NISSAN X-TRAIL cooling

CHASSIS AND BODY MAINTENANCE
MA-39
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6. Check fluid condition.

If fluid is very dark or smells burned, refer to AT section for
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 dipstick in the A/T fluid charging pipe.
Changing A/T FluidELS000BW
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.
4. Run engine at idle speed for five minutes.
5. Check fluid level and condition. Refer to MA-38, "
Checking A/T Fluid" . If fluid is still dirty, repeat steps 2
through 5.
Checking Transfer OilELS000BT
Check for oil leakage and oil level.
CAUTION:
Never start engine while checking oil level.
Changing Transfer OilELS000BU
1. Drain oil from drain plug and refill with new gear oil.
SMA853B
Fluid grade:
Genuine Nissan ATF or equivalent. Refer to MA-
17, "RECOMMENDED FLUIDS AND LUBRI-
CANTS" .
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)
SMA052D
Filler plug:
: 9.8 - 19.6 N·m (1.0 - 1.9 kg-m, 87 - 173 in-lb)
SDIA0513E

BLOWER UNIT
MTC-23
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MTC

Disassembly and AssemblyEJS004YC
NOTE:
This illustration is for LHD models. The layout for RHD models is symmetrically opposite.
CAUTION:
If retaining tabs are damaged while disassembling blower unit,
use 9 screws (27111-2Y000) to assemble blower unit.
1. Upper case 2 2. Filter cover 3. Fan resistor
4. Screw 5. Blower fan motor assembly 6. Washer
7. Cooling hose 8. Intake door motor 9. Motor bracket
10. Intake door link 11. Intake door lever 2 12. Upper case 1
13. Intake door 2 14. Intake door 1 15. Nut
16. Blower fan 17. Bell mouth 18. Intake door lever 1
SJIA0483E
RJIA3155E

MTC-24
BLOWER MOTOR

BLOWER MOTORPFP:27226
Removal and InstallationEJS004HD
REMOVAL
1. Remove blower unit. Refer to ATC-125, "BLOWER UNIT" .
2. Separate blower unit.
3. Remove cooling hose, fan resistor and blower fan.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
If retaining tabs are damaged while disassembling blower unit,
use 9 screws (27111-2Y000) to assemble blower unit.
RJIA0054E
RJIA0092E
RJIA0097E

HEATER UNIT
MTC-27
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MTC

HEATER UNITPFP:27100
Removal and InstallationEJS001F9
REMOVAL
1. Drain coolant from cooling system. Refer to CO-9, "Changing Engine Coolant" for QR engine or CO-31,
"Changing Engine Coolant" for YD engine.
2. Disconnect two heater hoses from heater core pipe.
3. Remove instrument panel. Refer to IP-11, "
Removal and Installation" .
4. Remove blower unit. Refer to ATC-125, "
BLOWER UNIT" .
5. Remove clips of vehicle harness from steering member.
6. Remove mounting nuts, and then remove instrument stay.
7. Remove mounting bolts from heater (& cooling) unit.
RJIA0060E
RJIA0061E
RJIA2444E

MTC-30
HEATER CORE

HEATER COREPFP:27140
Removal and InstallationEJS004HF
REMOVAL
1. Remove heater (& cooling) unit. Refer to MTC-27, "HEATER UNIT" .
2. Remove heater pipe support.
3. Remove mounting screws, and then remove foot duct and
heater core cover.
4. Remove heater core from heater (& cooling) unit.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA0069E

DUCTS AND GRILLES
MTC-35
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Removal of Adaptor
1. Remove heater (& cooling) unit. Refer toMTC-27, "HEATER UNIT" .
2. Remove mounting screw and clip.
3. Slide adaptor toward vehicle front, and then remove adaptor.
Removal of Multi-box Duct
1. Remove instrument panel. Refer to IP-11, "Removal and Installation" .
2. Remove mounting screws, and then disconnect multi-box duct
from heater (& cooling) unit.
3. Remove mounting bolts, and then remove heater (& cooling)
unit bracket.
4. Remove multi-box duct from left side.
Removal of Foot Duct
1. Remove multi-box duct.
2. Remove mounting screws, and then remove foot duct.
RJIA2411E
RJIA2412E
RJIA0069E

HARNESS
PG-61
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PG

Wiring Diagram Codes (Cell Codes) EKS0032J
Use the chart below to find out what each wiring diagram code stands for.
Refer to the wiring diagram code in the alphabetical index to find the location (page number) of each wiring
diagram.
Code Section Wiring Diagram Name
1STSIG AT A/T 1st Signal
2NDSIG AT A/T 2nd Signal
3RDSIG AT A/T 3rd Signal
4THSIG AT A/T 4th Signal
4WD TF 4WD Control system
A/C ATC Air Conditioner
ABS BRC Anti-Lock Brake System
APP1PW EC Accelerator Pedal Position Sensor 1 Power Supply
APP2PW EC Accelerator Pedal Position Sensor 2 Power Supply
APPS1 EC Accelerator Pedal Position Sensor
APPS2 EC Accelerator Pedal Position Sensor
APPS3 EC Accelerator Pedal Position Sensor
AT/IND DI A/T Indicator
AUDIO AV Audio
BA/FTS AT A/T Fluid Temperature Sensor and TCM Power Supply
BACK/L LT Back-Up Lamp
BOOST EC Turbocharger Boost Sensor
BRK/SW EC Brake Switch
CAN AT CAN Communication Line
CAN EC CAN Communication Line
CAN LAN CAN System
CHARGE SC Charging System
CHIME DI Warning Chime
CIGAR WW Cigarette Lighter
CLOCK DI Clock
CKPS EC Crankshaft Position Sensor
CMPS EC Camshaft Position Sensor
COOL/F EC Cooling Fan Control
D/LOCK BL Power Door Lock
DEF GW Rear Window Defogger
DTRL LT Headlamp - With Daytime Light System
ECM/PW EC ECM Power Supply for Back-Up
ECMRLY EC ECM Relay
ECTS EC Engine Coolant Temperature Sensor
EGVC/V EC EGR Volume Control Valve
EGRVLV EC EGR Volume Control Valve
ENGSS AT Engine Speed Signal
ESP BRC ESP/TCS/ABS Control System
ETC1 EC Electric Throttle Control Function
ETC2 EC Electric Throttle Control Motor Relay
ETC3 EC Electric Throttle Control Motor

IDX-3
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IDX
ALPHABETICAL INDEX
Blower unit ....................... ATC-125, MTC-22, MTC-24
BOOST - Wiring diagram ............... EC-1040, EC-1347
Boring/horning cylinder block(QR20DEQR25DE) .......
EM-103
Brake booster .................................................... BR-23
Brake fluid change ............................................... BR-8
Brake fluid level ................................................. MA-41
Brake fluid level and line check ........................... BR-8
Brake hydraulic line ........................................... BR-10
Brake inspection ................................................ MA-43
Brake lines and cables inspection ..................... MA-41
Brake master cylinder ........................................ BR-14
Brake pedal ......................................................... BR-6
Brake switch ..... EC-380, EC-733, EC-1177, EC-1475
BRK/SW - Wiring diagram EC-381, EC-735, EC-1178,
EC-1476
Bulb specifications .............................................. LT-92
Bumper, front ....................................................... EI-14
Bumper, rear ........................................................ EI-17
C
Camshaft inspection(QR20DEQR25DE) .......... EM-55
Camshaft inspection(YD22DDTi) .................... EM-171
Camshaft position sensor (CMPS) EC-1056, EC-1062,
EC-1363
, EC-1369
Camshaft position sensor (PHASE) .. EC-254, EC-646
Camshaft(QR20DEQR25DE) ........................... EM-53
Camshaft(YD22DDTi) ...................................... EM-170
CAN - Wiring diagram ......... EC-133, EC-580, EC-945,
EC-1269
, LAN-10, LAN-26, LAN-51, LAN-69, LAN-87
CAN (Controller Area Network) ........... BRC-8, LAN-9,
LAN-25
, LAN-50, LAN-68, LAN-86
CAN communication EC-38, EC-132, EC-500, EC-579,
EC-888
, EC-944, EC-1268, AT-32, AT-97, AT-329,
TF-43
, BRC-8, LAN-9, LAN-25, LAN-50, LAN-68,
LAN-86
Canister-See EVAP canister ............. EC-476, EC-868
CHARGE - Wiring diagram .................... SC-13, SC-14
Charging system ................................................ SC-12
Chassis and body maintenance ........................ MA-37
CHIME - Wiring diagram ................ DI-52, DI-55, DI-56
CIGAR - Wiring diagram .................................. WW-27
Cigarette lighter ............................................... WW-27
Circuit breaker ................................................... PG-12
CKPS - Wiring diagram .. EC-947, EC-1046, EC-1052,
EC-1271
, EC-1353, EC-1359
Clearance lamp ........................................ LT-4, LT-60
Clock ................................................................... DI-61
CLOCK - Wiring diagram .................................... DI-61
Closed loop control .............................. EC-35, EC-497
Clutch cover ....................................................... CL-14
Clutch disc ......................................................... CL-14
Clutch master cylinder ......................................... CL-8
Clutch operating cylinder ................................... CL-10
Clutch pedal ......................................................... CL-5
Clutch release bearing ....................................... CL-12
Clutch release mechanism ................................ CL-12
Clutch withdrawal lever ...................................... CL-12
CMPS - Wiring diagram . EC-947, EC-1058, EC-1064,
EC-1271
, EC-1365, EC-1371
Coil spring (rear) ............................................... RSU-8
Collision diagnosis .......................................... SRS-48
Combination meter ............................................... DI-4
Combination switch ............................................. LT-40
Component Location (auto A/C) ......... ATC-35, MTC-4
Compression pressure(QR20DEQR25DE) ..... EM-67
Compression pressure(YD22DDTi) ................ EM-196
Compressor clutch removal and installation .. ATC-146
Compressor special service tool ...................... ATC-14
Condenser ..................................................... ATC-155
Connecting rod bearing clearance(QR20DEQR25DE)
EM-101
Connecting rod bearing clearance(YD22DDTi) EM-232
Connecting rod bushing clearance(YD22DDTi) EM-226
Connecting rod(QR20DEQR25DE) ............... EM-101
Connecting rod(YD22DDTi) .............. EM-223, EM-228
CONSULT for engine ......................... EC-102, EC-551
CONSULT-II for engine ................... EC-926, EC-1251
Control lever (M/T) ............................................. MT-14
Control unit ..................................... ATC-120, MTC-21
Control units (terminal arrangement) ................. PG-72
Controller Area Network (CAN) ........... BRC-8, LAN-9,
LAN-25
, LAN-50, LAN-68, LAN-86
Converter housing installation ......................... AT-523
COOL/F - Wiring diagram EC-352, EC-704, EC-1014,
EC-1322
Coolant replacement(QR20DEQR25DE) ........ MA-20
Coolant replacement(YD22DDTi) ..................... MA-28
Cooling circuit (engine)(QR20DEQR25DE) ....... CO-7
Cooling circuit (engine)(YD22DDTi) ................. CO-29
Cooling fan ............................................ CO-18, CO-36
Cooling fan relay EC-363, EC-715, EC-1024, EC-1331
Coupling sleeve (M/T) ........................... MT-20, MT-25
Cowl top .............................................................. EI-20
Cowl top cover .................................................... EI-20
Crankcase ventilation system .......... EC-888, EC-1219
Crankcase ventilation system - See Positive crankcase
ventilation ........................................... EC-478
, EC-870
Crankshaft position sensor (POS) ..... EC-247, EC-638
Crankshaft position sensor (TDC) EC-1044, EC-1050,
EC-1351
, EC-1357
Crankshaft(QR20DEQR25DE) ........................ EM-83
Cylinder block boring(QR20DEQR25DE) ...... EM-104
Cylinder block boring(YD22DDTi) ................... EM-230
Cylinder block(QR20DEQR25DE) ................... EM-82
Cylinder block(YD22DDTi) .............................. EM-212
Cylinder head bolt tightening(QR20DEQR25DE) ........
EM-69
Cylinder head bolt tightening(YD22DDTi) ....... EM-198
Cylinder head gasket selection(YD22DDTi) ... EM-199
Cylinder head(QR20DEQR25DE) ................... EM-67
Cylinder head(YD22DDTi) .............................. EM-196
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Data link connector ............................ EC-469
, EC-861
Data link connector for Consult ......... EC-104, EC-553,