2003 NISSAN X-TRAIL fuse box

TF-44
TROUBLE DIAGNOSIS FOR SYMPTOMS

TROUBLE DIAGNOSIS FOR SYMPTOMSPFP:00007
4WD Indicator Lamp and LOCK Indicator Lamp Do Not Turn ON for Approx. 1
Second When The Ignition Switch Is Turned to ON
EDS001VT
DIAGNOSTIC PROCEDURE
1. CHECK SYSTEM FOR CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to TF-30, "
SELF-DIAG RESULT MODE" .
Is the
“CAN COMM CIRCUIT [U1000]” displayed?
YES >> Perform trouble diagnosis for CAN communication line. Refer to LAN-4, "CAN Communication
Unit" .
NO >> GO TO 2.
2. CHECK 4WD CONTROL UNIT POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect 4WD control unit harness connector.
3. Turn ignition switch “ON”. (Do not start engine.)
4. Check voltage between 4WD control unit harness connector ter-
minals and ground.
5. Turn ignition switch “OFF”.
6. Check voltage between 4WD control unit harness connector ter-
minals and ground.
OK or NG
OK >> GO TO 3.
NG >> Check the following. If any items are damaged, repair or
replace damaged parts.

10A fuse [No. 8 located in the fuse block (J/B) or No. 37, located in the fuse and fusible link box]

Harness for short or open between battery and 4WD control unit harness connector terminal 9

Harness for short or open between ignition switch and 4WD control unit harness connector ter-
minal 7

Ignition switch. Refer to PG-2, "POWER SUPPLY ROUTING" .
Connector Terminal (Wire color) Voltage (Approx.)
M1077 (GY) - Ground
Battery voltage
9 (P/L) - Ground
SDIA2304E
Connector Terminal (Wire color) Voltage (Approx.)
M1077 (GY) - Ground 0V
9 (P/L) - Ground Battery voltage
SDIA2321E

BRC-100
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

2. SELF-DIAGNOSIS RESULT CHECK 2
1. Disconnect connectors for ESP/TCS/ABS control unit and the actuator. Securely connect them again.
2. Perform the self-diagnosis again.
Are any self-diagnosis items indicated again?
YES >> GO TO 3.
NO >> Repair or replace the poorly connected connector.
3. ACTUATOR MOTOR, MOTOR RELAY POWER SUPPLY CIRCUIT INSPECTION
1. Disconnect relay box harness connectors.
2. Check the voltage between the harness connector E55 and
body ground.
Is inspection result OK?
YES >> GO TO 4.
NO >>

Check the fuse 50A.

Check for the continuity between battery and relay box terminal No. 10.
4. ACTUATOR MOTOR AND MOTOR RELAY CIRCUIT CHECK
1. Disconnect connectors for ESP/TCS/ABS control unit and the
relay box.
2. Check for continuity between ESP/TCS/ABS control unit, the
relay.
Is inspection result OK?
YES >> GO TO 5.
NO >> Harness malfunction between ESP/TCS/ABS control unit, the ESP relay box.
5. MOTOR RELAY UNIT INSPECTION
Check the motor relay as a unit.
Is inspection result OK?
YES >> Check ESP/TCS/ABS control unit power supply circuit.
NO >> Replace the motor relay.
SFIA2206E
ESP Relay box
(harness connector E55)Body ground Voltage value
10 (W/R) – Battery voltage (approx. 12V)
ESP/TCS/ABS
control unit
(harness
connector E122)ESP relay box
(harness
connector E56and
E57)Continuity
20 (R/B) 4 (R/B) Yes
7 (G/W) 8 (G/W) Yes
SFIA2182E

BRC-102
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

4. ACTUATOR RELAY POWER SUPPLY CIRCUIT INSPECTION
1. Disconnect the relay box connectors.
2. Check the voltage between the harness connector and body
ground.
Is inspection result OK?
YES >> GO TO 5.
NO >>

Check the fuse 30A.

Check for the continuity between battery and the relay box terminal No. 9. If it is not OK,
replace the fuse or harness.
5. ACTUATOR RELAY POWER CIRCUIT CHECK
1. Disconnect connectors for ESP/TCS/ABS control unit and the
relay box.
2. Check for continuity between ESP/TCS/ABS control unit and
the relay box.
Is inspection result OK?
YES >> GO TO 6.
NO >> The harness disconnection between ESP/TCS/ABS control unit and the relay box.
6. ACTUATOR RELAY UNIT INSPECTION
Check the actuator relay as a unit.
Is inspection result OK?
YES >> Check ESP/TCS/ABS control unit power supply circuit.
NO >> Replace the actuator relay.
SFIA2183E
RELAY BOX
(harness connector E55)Body ground Voltage value
9 (BR) – Battery voltage (approx. 12V)
SFIA2184E
ESP/TCS/ABS control unit
(harness connector E122)ESP relay box
(harness connector E56)Continuity
2 (Y/R) 5 (Y/R) Yes
36 (L/Y) 7 (L/Y) Yes

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

POWER DOOR LOCK — SUPER LOCK —
BL-55
C
D
E
F
G
H
J
K
L
MA
B
BL

*:Make sure the power door lock system operates properly.
Power Supply and Ground Circuit CheckEIS008EF
1. 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 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
2. CHECK GROUND CIRCUIT
Check continuity between time control unit harness connector M30
terminal 16 (B/R) and ground.
OK or NG
OK >> Power supply and ground circuit is OK.
NG >> Replace harness or connector.
SYMPTOM 8
Specific super lock actuator does not operate.Super lock actuator check (Driver side)BL-68
Super lock actuator check (Passenger side)BL-69
Super lock actuator check rear LHBL-70
Super lock actuator check rear RHBL-71
If above system is OK, replace time control unit. —
SYMPTOM 9
*Key reminder system does not operate.Door switch checkBL-65
Door unlock sensor checkBL-66
Key switch checkBL-67
If above system is OK, replace time control unit. — Symptom Malfunctioning systemReference
page
ConnectorTerminal (wire color) Ignition switch position
(+) (–) OFF ACC ON
M311 (L)
GroundBattery
voltageBattery
voltageBattery
voltage
10 (W)Battery
voltageBattery
voltageBattery
voltage
PIIA8640E
16 (B/R) – Ground : Continuity should exist.
PIIA8641E

BL-82
MULTI-REMOTE CONTROL SYSTEM

Remote Controller Battery CheckEIS001T3
1. CHECK REMOTE CONTROLLER BATTERY
Remove battery and measure voltage across battery positive and
negative terminals, (+) and (−).
NOTE:
Remote controller does not function if battery is not set correctly.
OK or NG
OK >> Check remote controller battery terminals for corrosion
or damage.
NG >> Replace battery.
Power Supply and Ground Circuit Check for Time Control UnitEIS001T4
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect time control unit harness connector.
3. Check voltage between time control unit connector M30 terminal
1 (L), 10 (W) and ground.
OK or NG
OK >> GO TO 2.
NG >> Check the following.

40A fusible link (letter B , located in the fuse and fus-
ible link box)

10A fuse [No. 28, located in the fuse block (J/B)]

Harness for open or short between time control unit and fuse

Harness for open or short between time control unit and fusible link
2. CHECK GROUND CIRCUIT
Check continuity between time control unit connector M30 terminal
16 (B/R) and ground.
OK or NG
OK >> Power supply and ground circuits are OK.
NG >> Check ground harness.Voltage : 2.5V – 3.0V
SEL237W
1 (L) – Ground : Battery voltage
10 (W) – Ground : Battery voltage
PIIA8729E
16 (B/R) – Ground : Continuity should exist.
PIIA8730E

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

REAR WINDOW DEFOGGER
GW-17
C
D
E
F
G
H
J
K
L
MA
B
GW

REAR WINDOW DEFOGGERPFP:25350
Component Parts and Harness Connector LocationEIS0045L
System Description / LHD ModelsEIS0045M
The rear window defogger system is controlled by time control unit. The rear window defogger operates only
for approximately 15 minutes.
Power is supplied at all times

through 20A fuse (No.25, located in the fuse and fusible link box) and

to rear window defogger relay terminal 3 (with door mirror defogger or side air bag) or

to rear window defogger relay terminal 5 (without door mirror defogger or side air bag) .

through 10A fuse [No.27, located in the fuse block (J/B)]

to rear window defogger relay terminal 6 (with door mirror defogger).

through 10A fuse [No.28, located in the fuse block (J/B)]

to time control unit terminal 1.
With the ignition switch in the ON or START position, power is supplied

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

to rear window defogger relay terminal 1 and

to time control unit terminal 17.
Ground is supplied

to rear window defogger switch terminals 2 and 4 (without auto A/C) or

to A/C auto amp. Terminal 3 (with auto A/C)

through body ground M27 and M70.
When the rear window defogger switch is turned ON, ground is supplied

to time control unit terminal 35

through rear window defogger switch terminal 1 (without auto A/C) or

through A/C auto amp, terminal 22 (with auto A/C).
Terminal 27 of the time control unit then supplies ground to the rear window defogger relay terminal 2.
With power and ground supplied, the rear window defogger relay is energized.
Power is supplied

through rear window defogger relay terminals 5 and 7 (with door mirror defogger or side air bag)

through rear window defogger relay terminal 3 (without door mirror defogger or side air bag)

to the rear window defogger and door mirror defogger (with door mirror defogger).
The rear window defogger and door mirror defogger has an independent ground.
PIIA9619E