2003 NISSAN X-TRAIL fuse chart

HOW TO USE THIS MANUAL
GI-17
C
D
E
F
G
H
I
J
K
L
MB
GI

14 Wire color

This shows a code for the color of the wire.
B = Black
W = White
R = Red
G = Green
L = Blue
Y = Yellow
LG = Light GreenBR = Brown
OR or O = Orange
P = Pink
PU or V (Violet) = Purple
GY or GR = Gray
SB = Sky Blue
CH = Dark Brown
DG = Dark Green
When the wire color is striped, the base color is given first, followed by the stripe color as shown
below:
Example: L/W = Blue with White Stripe
15 Option description

This shows a description of the option abbreviation used on the page.
16 Switch

This shows that continuity exists between terminals 1 and 2 when the switch is in the A posi-
tion. Continuity exists between terminals 1 and 3 when the switch is in the B position.
17 Assembly parts

Connector terminal in component shows that it is a harness incorporated assembly.
18 Cell code

This identifies each page of the wiring diagram by section, system and wiring diagram page
number.
19 Current flow arrow

Arrow indicates electric current flow, especially where the direction of standard flow (vertically
downward or horizontally from left to right) is difficult to follow.

A double arrow “ ” shows that current can flow in either direction depending on cir-
cuit operation.
20 System branch

This shows that the system branches to another system identified by cell code (section and
system).
21 Page crossing

This arrow shows that the circuit continues to another page identified by cell code.

The C will match with the C on another page within the system other than the next or preced-
ing pages.
22 Shielded line

The line enclosed by broken line circle shows shield wire.
23Component box in
wave line

This shows that another part of the component is also shown on another page (indicated by
wave line) within the system.
24 Component name

This shows the name of a component.
25 Connector number

This shows the connector number.

The letter shows which harness the connector is located in.

Example: M : main harness. For detail and to locate the connector, refer to PG section "Main
Harness", “Harness Layout”. A coordinate grid is included for complex harnesses to aid in
locating connectors.
26 Ground (GND)

The line spliced and grounded under wire color shows that ground line is spliced at the
grounded connector.
27 Ground (GND)

This shows the ground connection. For detailed ground distribution information, refer to
"Ground Distribution" in PG section.
28 Connector views

This area shows the connector faces of the components in the wiring diagram on the page.
29 Common component

Connectors enclosed in broken line show that these connectors belong to the same compo-
nent.
30 Connector color

This shows a code for the color of the connector. For code meaning, refer to wire color codes,
Number 14 of this chart.
31Fusible link and fuse
box

This shows the arrangement of fusible link(s) and fuse(s), used for connector views of
"POWER SUPPLY ROUTING" in PG section.
The open square shows current flow in, and the shaded square shows current flow out.
32 Reference area

This shows that more information on the Super Multiple Junction (SMJ) and Joint Connectors
(J/C) exists on the PG section. Refer to "Reference Area" for details. Num-
berItem Description

SB-16
SEAT BELT WARNING SYSTEM

Work FlowEHS001FQ
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to SB-6, "
System Description" .
3. According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to SB-16,
"Trouble Diagnosis Chart by Symptom" .
4. Does power seat system operate normally? If Yes, GO TO 5, If No, GO TO 3.
5. INSPECTION END.
Trouble Diagnosis Chart by SymptomEHS000GS
NOTE:
Always check the “Work Flow” before troubleshooting. Refer to SB-16, "
Work Flow" .
Time Control Unit Power Supply and Ground Circuit CheckEHS001FV
1. CHECK FUSE
Check the following.

Check 10A fuse [No. 5, located in the fuse block (J/B)].

Check 10A fuse [No. 28, located in the fuse block (J/B)].
OK or NG
OK >> GO TO 2.
NG >> Replace fuse.
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect time control unit connector.
3. Check voltage between time control unit and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace time control unit power supply circuit.
Symptom Diagnoses/Service procedure Reference page
Seat belt warning system do not operate. Time control unit power supply and ground checkSB-16
Seat belt warning lamp (driver side) do not
illuminated.1. Seat belt warning lamp check (driver side)SB-172. Seat belt buckle switch checkSB-20
3. If the above system are normal, replace time control unit. —
Seat belt warning lamp (passenger side) do
not illuminated.1. Seat belt warning lamp check (passenger side)SB-19
2. Seat belt buckle switch and seat pressure switch checkSB-22
3. If the above system are normal, replace time control unit. —
Seat belt warning lamp does not illuminated
(both driver side and passenger side) Seat belt warning lamp power supply checkSB-17
Seat belt chime does not activate.(Seat belt
warning lamp is operated) Vehicle speed signal checkSB-24
ConnectorTerminals
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
M30 1 (L)
GroundIgnition switch OFF Battery voltage
M31 17 (G) Ignition switch ON Battery voltage
PHIA0649E

POWER DOOR LOCK SYSTEM
BL-29
C
D
E
F
G
H
J
K
L
MA
B
BL

Symptom ChartEIS001R5
*:Make sure the power door lock system operates properly.
Power Supply and Ground Circuit CheckEIS004DF
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect time control unit connector.
3. Check voltage between time control unit connector and ground.
OK or NG
OK >> GO TO 2.
NG >> Check the following.

10A fuse [No.5, located in fuse block (J/B)]

40A fusible link (letter B , located in fuse and fusible link box.)

Harness for open or short between time control unit and fuse

Harness for open or short between time control unit circuit breaker
Symptom Malfunctioning systemReference
page
Power door lock does not operate using any switchPower supply and ground circuit checkBL-29
Front door lock actuator check (Driver side)BL-34
Front door lock actuator check (Passenger side)BL-35
Rear door lock actuator check LH BL-36
Rear door lock actuator check RHBL-37
Back door lock actuator checkBL-38
If above systems are OK, replace time control unit. —
Power door lock does not operate with lock/unlock
switch.Door lock/unlock switch checkBL-30
If above system is OK, replace time control unit. —
Power door lock does not operate with door key cylinder
switch.Door key cylinder switch checkBL-32
If above system is OK, replace time control unit. —
Specific door lock actuator does not operate.Front door lock actuator check (Driver side)BL-34
Front door lock actuator check (Passenger side)BL-35
Rear door lock actuator LHBL-36
Rear door lock actuator RHBL-37
Back door lock actuatorBL-38
If above system is OK, replace time control unit. —
*Key reminder system does not operate.Door switch checkBL-39
Door unlock sensor checkBL-40
Key switch checkBL-41
If above system is OK, replace time control unit. —
ConnectorTerminal (wire
color)Ignition switch position
(+) (–) OFF ACC ON
M301 (L)
GroundBattery
voltageBattery
voltageBattery
voltage
10 (W)Battery
voltageBattery
voltageBattery
voltage
PIIA8640E

NATS (NISSAN ANTI-THEFT SYSTEM)
BL-121
C
D
E
F
G
H
J
K
L
MA
B
BL

SYMPTOM MATRIX CHART 2
Non self-diagnosis related item
DIAGNOSTIC SYSTEM DIAGRAM
Diagnostic Procedure 1EIS008F6
Self-diagnostic results:
“ECM INT CIRC-IMMU” displayed on CONSULT-II screen
1. Confirm SELF-DIAGNOSTIC RESULTS “ECM INT CIRC-IMMU”
displayed on CONSULT-II screen. Ref. part No. B.
2. Replace ECM.
3. Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II operation manual NATS”.
SYMPTOMDIAGNOSTIC PROCEDURE
(Reference page)SYSTEM
(Malfunctioning part or mode)REFERENCE PART NO. OF
ILLUSTRATION ON SYSTEM
DIAGRAM
Security Ind. does not light up.PROCEDURE 6
(BL-128
)Security Ind. —
Open circuit between Fuse and
IMMU—
Continuation of initialization
mode—
IMMU A
Security Ind. does not blink just
after initialization even if the
vehicle is equipped with don-
gle unit.
PROCEDURE 8
(BL-130
)NATS might be initialized with-
out connecting dongle unit
properly.—
Open circuit in ground line of
dongle unit circuitC6
Security Ind. does not blink just
after ignition switch is turned to
ON when some malfunction
related to NATS is detected
even if the vehicle is equipped
with dongle unit.Open or short circuit in commu-
nication line between IMMU
and dongle unitC5
Dongle unit G
SEL028X
SEL152X

BL-122
NATS (NISSAN ANTI-THEFT SYSTEM)

Diagnostic Procedure 2EIS008F7
Self-diagnostic results:
“CHAIN OF ECM-IMMU” displayed on CONSULT-II screen
1. CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “CHAIN OF ECM-IMMU”
displayed on CONSULT-II screen.
NOTE:
In rare case, “CHAIN OF ECM-IMMU” might be stored during key
registration procedure, even if the system is not malfunctioning.
Is CONSULT-II screen displayed as shown in figure?
Yes >> GO TO 2
No >> GO TO BL-119, "
SYMPTOM MATRIX CHART 1" .
2. CHECK POWER SUPPLY CIRCUIT FOR IMMU
1. Turn ignition switch OFF.
2. Disconnect NATS IMMU connector.
3. Check voltage between NATS IMMU harness connector E109 terminal 8 (W/L) and ground with CON-
SULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> Check the following.

10A fuse (No. 33, located in the fusible link and fuse
box) – (Gasoline engine)

20A fuse (No. 43, located in the fusible link and fuse
box) – (Diesel engine)

Harness for open or short between fuse and NATS
IMMU connector. Ref. Part No. C1
3. CHECK IGN SW. ON SIGNAL
1. Turn ignition switch ON.
2. Check voltage between NATS IMMU harness connector E109 terminal 7 (G) and ground with CONSULT-
II or tester.
OK or NG
OK >> GO TO 4.
NG >> Check the following.

10A fuse [No. 5, located in the fuse block (J/B)]

Harness for open or short between fuse and NATS
IMMU connector. Ref. part No. C2
SEL292W
8 (W/L) – Ground : Battery voltage.
PIIA8746E
7 (G) – Ground : Battery voltage.
PIIA8747E

DI-20
COMBINATION METERS

7. Push the odo/trip meter switch. Each meter/gauge should indi-
cate as shown in the figure while pushing odo/trip meter switch.
(At this time, the low-fuel warning lamp goes off.)
How to Proceed With Trouble DiagnosisEKS00EH8
1. Confirm the symptom or customer complaint.
2. Perform diagnosis according to diagnosis flow. Refer to DI-20, "
Diagnosis Flow" .
3. According to the trouble diagnosis chart, repair or replace the cause of the symptom. Refer to DI-22,
"Trouble Diagnosis Chart for Symptom" .
4. Does the meter operate normally? If so, go to 5. If not, go to 2.
5. INSPECTION END
Diagnosis FlowEKS00EH9
1. CHECK WARNING LAMP ILLUMINATION
1. Turn ignition switch ON.
2. Make sure that warning lamp (such as MIL and oil pressure warning lamp) illuminate.
Does warning lamp illuminate?
YES >> GO TO 2.
NO >> Check ignition power supply circuit of combination meter. Refer to DI-21, "
Power Supply and
Ground Circuit Inspection" .
2. CHECK SELF-DIAGNOSIS OPERATION
Perform combination meter self-diagnosis. Refer to DI-19, "
SELF-DIAGNOSIS FUNCTION" .
Does self-diagnosis function operate?
YES >> GO TO 3.
NO >> Check battery power supply of combination meter and ground system. Refer to PG-75, "
FUSE
BLOCK - JUNCTION BOX (J/B)" .
3. CHECK ODO/TRIP METER OPERATION
Check segment display status of odo/trip meter.
Is the display normal?
YES >> GO TO 4.
NO >> Replace combination meter.
SKIA8921E
SKIA8920E

COMBINATION METERS
DI-21
C
D
E
F
G
H
I
J
L
MA
B
DI

4. CHECK LOW-FUEL WARNING LAMP ILLUMINATION
During fuel warning lamp check, confirm illumination of low-fuel warning lamp.
OK or NG
OK >> GO TO 5.
NG >> Replace combination meter.
5. CHECK METER CIRCUIT
Check indication of each meter/gauge in self-diagnosis mode.
OK or NG
OK >> Go to diagnosis results. Refer to DI-22, "Trouble Diag-
nosis Chart for Symptom" .
NG >> Replace combination meter.
Power Supply and Ground Circuit InspectionEKS00EHA
1. CHECK FUSES
Check for blown combination meter fuses.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
76, "FUSE AND FUSIBLE LINK BOX" .
2. CHECK POWER SUPPLY CIRCUIT
Check voltage between combination meter and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness between combination meter and fuse.
Condition of odo/trip meter switch Fuel warning lamp
Pushed Does not illuminate.
Released Illuminates.
SKIA8921E
Unit Power source Fuse No.
Combination meterBattery 28
Ignition switch (ON) 11
Terminals Ignition switch position
(+)
(–) OFF ON
Connector Terminal (Wire color)
M442 (Y/G)
Ground0VBattery
voltage
1 (L)Battery
voltageBattery
voltage
SKIA8922E

DI-58
WARNING CHIME

Symptom ChartEKS002XQ
Power Supply and Ground Circuit InspectionEKS002YF
1. CHECK FUSES
Check for blown time control unit fuses.
OK or NG
OK >> GO TO 2
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
75, "FUSE BLOCK - JUNCTION BOX (J/B)"
2. CHECK POWER SUPPLY CIRCUIT
Check voltage between time control unit connector and ground.
OK or NG
OK >> GO TO 3
NG >> Repair harness or connector.
3. CHECK GROUND CIRCUIT
Check continuity between time control unit harness connector M30
terminal 16 (B/R) and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Symptom Diagnoses/Service procedure
Light warning chime does not activate.Perform the following inspections.
1.DI-58, "
Power Supply and Ground Circuit Inspection"
2.DI-59, "Front Door Switch (driver side) Inspection"
3.DI-60, "Lighting Switch Input Signal Inspection"
Replace time control unit, found normal function in the above.inspections.
Key reminder warning chime does not activate. Perform key reminder system trouble diagnosis.
Refer to BL-54, "
SYMPTOM CHART" .
Seat belt warning chime does not activate.Perform seat belt warning system trouble diagnosis.
Refer to SB-16, "
Trouble Diagnosis Chart by Symptom" .
Unit Power source Fuse No
Time control unitBattery 28 (10A)
Ignition switch (ON) 5 (10A)
Terminals Ignition switch position
(+)
(–) OFF ON
Connector Terminal (Wire color)
M30 1 (L) Ground Battery voltage Battery voltage
M31 17 (G) Ground 0V Battery voltage
SKIA9645E
Continuity should exist.
SKIA9646E