2003 NISSAN X-TRAIL 4WD

CAN SYSTEM (TYPE 5)
LAN-107
[CAN]
C
D
E
F
G
H
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L
MA
B
LAN

CAN Communication Circuit InspectionEKS00FWR
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect battery cable at negative terminal.
3. Check following terminals and connectors for damage, bend and loose connection (control module side,
control unit side, sensor side, meter side, connector side and harness side).
–ECM
–TCM
–ESP/TCS/ABS control unit
–Steering angle sensor
–4WD control unit
–Combination meter
–Between ECM and combination meter
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect ECM connector and harness connector M61.
2. Check continuity between ECM harness connector M118 termi-
nals 94 (G/R) and 86 (GY/R).
OK or NG
OK >> GO TO 3.
NG >> Repair harness between ECM and harness connector
M61.
3. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between ECM harness connector M118 terminals
94 (G/R), 86 (GY/R) and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness between ECM and harness connector
M61. 94 (G/R) – 86 (GY/R) : Continuity should not exist.
PKIA9592E
94 (G/R) – Ground : Continuity should not exist.
86 (GY/R) – Ground : Continuity should not exist.
PKIA9593E

CAN SYSTEM (TYPE 5)
LAN-111
[CAN]
C
D
E
F
G
H
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J
L
MA
B
LAN

8. CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect steering angle sensor, 4WD control unit connector and combination meter connector.
2. Check continuity between combination meter harness connector
M44 terminals 22 (W) and 23 (R).
OK or NG
OK >> GO TO 9.
NG >> Check the following harness. If any harness is dam-
aged, repair the harness.

Harness between combination meter and 4WD con-
trol unit

Harness between combination meter and steering
angle sensor

Harness between combination meter and harness connector M75
9. CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between combination meter harness connector
M44 terminals 22 (W), 23 (R) and ground.
OK or NO
OK >> GO TO 10.
NG >> Check the following harness. If any harness is dam-
aged, repair the harness.

Harness between combination meter and 4WD con-
trol unit

Harness between combination meter and steering angle sensor

Harness between combination meter and harness connector M75
10. CHECK ECM AND COMBINATION METER INTERNAL CIRCUIT
Check components inspection. Refer to L A N - 111 , "
CHECK ECM AND COMBINATION METER INTERNAL
CIRCUIT" .
OK or NG
OK >> Connect all the connectors and diagnose again. Refer to LAN-89, "Work Flow" .
NG >> Replace ECM and/or combination meter.
Component InspectionEKS00FWS
CHECK ECM AND COMBINATION METER INTERNAL CIRCUIT

Remove ECM and combination meter from vehicle.

Check resistance between ECM terminals 94 and 86.

Check resistance between combination meter terminals 22 and
23.22 (W) – 23 (R) : Continuity should not exist.
SKIA9780E
22 (W) – Ground : Continuity should not exist.
23 (R) – Ground : Continuity should not exist.
SKIA9980E
Unit TerminalResistance (Ω)
(Approx.)
ECM 94 – 86
108 – 132
Combination meter 22 – 23
PKIA0830E

HARNESS
PG-61
C
D
E
F
G
H
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L
MA
B
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

LT-66
ILLUMINATION

ILLUMINATIONPFP:27545
System Description EKS003C7
Power is supplied at all times

through 10A fuse [No. 31, located in the fuse and fusible link box]

to lighting switch terminal 11.
The lighting switch must be in the 1ST or 2ND position for illumination.
The following chart shows the power and ground connector terminals for the components included in the illu-
mination system.
Component Connector No. Power terminal Ground terminal
Headlamp washier switch M23 3 4
Headlamp aiming switch M24 3 4
Door mirror remote control switch M26 10 1
ESP off switch M25 3 4
Hazard switch M51 7 8
4WD mode switch M39 4 3
Rear window defogger switch M50 5 6
A/C auto amp. M52 12 11
Combination meter (LHD models) M46 56 66
Combination meter (RHD models) M46 45 56
Audio M42 2 1
CD auto changer M82 34 35
Heater control panel M55 2 6
A/T device M58 3 4
Cigarette lighter M56 3 2
Heated seat switch LH (LHD models) B131 5 6
Heated seat switch RH (LHD models) B132 5 6
Heated seat switch LH (RHD models) B35 5 6
Heated seat switch RH (RHD models) B34 5 6

IDX-2
ALPHABETICAL INDEX
Numerics
4WD - Wiring diagram ....................................... TF-21
4WD control unit inspection table ...................... TF-28
A
A/C air flow ......................................... ATC-32
, MTC-5
A/C component layout ..................................... ATC-23
A/C compressor clutch removal and installation ...........
ATC-146
A/C compressor precaution ............................. ATC-10
A/C compressor special service tool ................ ATC-14
A/C diagnostic work flow (auto A/C) ................ ATC-34
A/C HFC134a (R134a) system precaution ........ ATC-4
A/C HFC134a (R134a) system service procedure .......
ATC-141
A/C HFC134a (R134a) system service tools ... ATC-15
A/C HFC134a system service equipment precaution ...
ATC-10
A/C lubricant (R134a) ...................................... ATC-24
A/C operational check ......................... ATC-65, MTC-7
A/C performance test diagnoses ..................... ATC-98
A/C reray .......................................................... ATC-94
A/C self-diagnoses (auto A/C) ......................... ATC-57
A/C system description (auto A/C) ................... ATC-27
A/C trouble diagnoses (auto A/C) ....... ATC-34, MTC-3
A/C, A - Wiring diagram ................................... ATC-39
A/T fluid checking .................................. AT-16, MA-38
A/T fluid replacement ............................. AT-17, MA-39
A/T fluid temperature sensor ........................... AT-111
A/T IND - Wiring diagram .................................... DI-51
A/T indicator ........................................................ DI-51
A/T shift lock system ........................................ AT-398
A/T shift lock system - Wiring diagram ............ AT-399
A/T trouble diagnoses .......................... AT-57, AT-251
A/T Wiring diagram AT - 1ST ........................... AT-127
A/T Wiring diagram AT - 2ND .......................... AT-132
A/T Wiring diagram AT - 3RD .......................... AT-137
A/T Wiring diagram AT - 4TH .......................... AT-143
A/T Wiring diagram AT - BA/FTS ..................... AT-376
A/T Wiring diagram AT - CAN .............. AT-98, AT-330
A/T Wiring diagram AT - ENG SS ...... AT-121, AT-383
A/T Wiring diagram AT - FTS .......................... AT-108
A/T Wiring diagram AT - LPSV .......... AT-156, AT-389
A/T Wiring diagram AT - MAIN ........................ AT-395
A/T Wiring diagram AT - OVRCSV .... AT-180, AT-364
A/T Wiring diagram AT - PNP/SW ................... AT-102
A/T Wiring diagram AT - SSV/A ......... AT-163, AT-352
A/T Wiring diagram AT - SSV/B ......... AT-169, AT-358
A/T Wiring diagram AT - TCV ............ AT-150, AT-370
A/T Wiring diagram AT - TPS ............ AT-175, AT-347
A/T Wiring diagram AT - VSS A/T ..... AT-114, AT-334
A/T Wiring diagram AT - VSSMTR .... AT-194, AT-341
Accelerator control system ............................... ACC-2
Accelerator pedal position (APP) sensor ........ EC-386,
EC-393
, EC-409, EC-740, EC-747, EC-763, EC-987,
EC-1025
, EC-1098, EC-1104, EC-1149, EC-1297,
EC-1332
, EC-1387, EC-1393, EC-1437
Accelerator pedal released position learning .... EC-45,
EC-507
Aiming adjustment ............................................... LT-4
Air bag .............................................................. SRS-3
Air bag disposal .............................................. SRS-42
Air bleeding (hydraulic clutch) .............................. CL-7
Air bleeding for brake system .............................. BR-9
Air cleaner and air duct(QR20DE•QR25DE) .... EM-15
Air cleaner and air duct(YD22DDTi) ............... EM-133
Air cleaner filter replacement(QR20DEQR25DE) ........
MA-23
Air cleaner filter replacement(YD22DDTi) ......... MA-32
Air cleaner filter(QR20DEQR25DE) ................ EM-15
Air cleaner filter(YD22DDTi) ........................... EM-133
Air conditioner cut control .... EC-37, EC-499, EC-887,
EC-1218
Air flow meter - See Mass air flow sensor ....... EC-149,
EC-590
Air mix door control linkage adjustment ......... ATC-78,
ATC-135
, MTC-10, MTC-32
Air mix. door motor ......................... ATC-76, ATC-135
Air spoiler, rear ................................................... EI-30
Alternator ........................................................... SC-12
Ambient sensor ............. ATC-109, ATC-111, ATC-121
Angular tightening application(QR20DEQR25DE) ......
EM-5
Angular tightening application(YD22DDTi) ..... EM-122
Antenna - See Power antenna ........................... AV-41
APP2PW - Wiring diagram ........... EC-1106, EC-1395
APPS - Wiring diagram ... EC-989, EC-1299, EC-1439
APPS1 - Wiring diagram ................... EC-388, EC-742
APPS2 - Wiring diagram .. EC-395, EC-749, EC-1027,
EC-1334
APPS3 - Wiring diagram ... EC-411, EC-765, EC-1151
Ashtray illumination ............................................ LT-65
Audio .................................................................... AV-4
Auto air conditioner - Wiring diagram ............. ATC-39
Automatic amplifier ........................... ATC-55, ATC-67
Automatic transmission fluid replacement ....... MA-38,
MA-39
AV and NAVI control unit ................................... AV-44
Axle ................................................................... MA-44
B
Back door ........................................................... BL-99
Back door window ............................................ GW-15
Back window .................................................... GW-15
BACK/L - Wiring diagram ................................... LT-44
Back-up lamp .......................................... LT-44, LT-62
Back-up lamp switch (M/T) ............................... MT-13
Barometric pressure (BARO) sensor ............ EC-1167,
EC-1455
Basic inspection .... EC-79, EC-526, EC-905, EC-1231
Battery ................................................................. SC-3
Baulk ring (M/T) .................................... MT-20, MT-25
Blower motor ..... ATC-82, ATC-87, ATC-127, MTC-15,
MTC-18
, MTC-24
Blower resistor ................................................ MTC-25