2003 NISSAN X-TRAIL fuse

AT-378
[ALL]
BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POW-
ER SOURCE)

2. DETECT MALFUNCTIONING ITEM
Check the following items:

Harness for short or open between ignition switch and TCM terminal 10, 19

Harness for short or open between battery and TCM terminal 28

Fuse

Ignition switch. Refer to PG-2, "POWER SUPPLY ROUTING" .
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.
3. CHECK INPUT SIGNAL OF A/T FLUID TEMPERATURE SENSOR
With CONSULT-II
1. Start engine.
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Read out the value of “FLUID TEMP SE”.
Without CONSULT-II
1. Start engine.
2. Check voltage TCM connector while warming up A/T.
OK or NG
OK >> GO TO 9.
NG >> GO TO 4.
4. DETECT MALFUNCTIONING ITEM
Check the following items:

Harness for short or open between TCM, ECM and terminal cord assembly

Ground circuit for ECM
Refer to PG-2, "
POWER SUPPLY ROUTING" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
Monitor item Condition Display value
FLUID TEMP
SEWhen ATF temperature is 20°C (68°F). 1.5V
When ATF temperature is 80°C (176°F). 0.5V
LCIA0090E
Name Connec-
tor No. Terminal
No. (Wire
color) ConditionJudge-
ment stan-
dard
(Approx.)
A/T fluid
temperature
sensor F47 47 (BR) -
42 (B)When ATF temperature
is 20°C (68°F).1.5V
When ATF temperature
is 80°C (176°F).0.5V
SCIA2658E

AT-396
[ALL]
MAIN POWER SUPPLY AND GROUND CIRCUIT

TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL
Diagnostic ProcedureECS004TI
1. CHECK TCM POWER SOURCE
1. Turn ignition switch to ON. (Do not start engine.)
2. Check voltage between TCM terminals 10, 19, 28 and ground.
3. Turn ignition switch to OFF.
4. Check voltage between TCM terminal 10, 19, 28 and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. DETECT MALFUNCTIONING ITEM
Check the following items:

Harness for short or open between ignition switch and TCM terminals 10, 19 and 28

Fuse

Ignition switch
Refer to “PG-2, "
POWER SUPPLY ROUTING" , “POWER SUPPLY ROUTING”.
OK or NG
OK >> GO TO 4
NG >> Repair or replace damaged parts.
Te r m i -
nal No.Wire color Item ConditionJudgement stan-
dard
(Approx.)
10 BR/W Power source
or When turning ignition switch to “ON”. Battery voltage
When turning ignition switch to
“OFF”.0V
19 BR/W Power source Same as No. 10
25 B/W Ground Always 0V
28 LPower source
(Memory back-up)Always Battery voltage
48 B/W Ground Always 0V
Name Connec-
tor No. Terminal
No. (Wire
color)Judgement standard (Approx.)
Power source F4610 (BR/W) Battery voltage
19 (BR/W) Battery voltage
Power source
(Memory back-up)F47 28 (L) Battery voltage
SCIA0713E
Name Connec-
tor No. Terminal No.
(Wire color)Judgement standard
(Approx.)
Power source F4610 (BR/W) 0V
19 (BR/W) 0V
Power source
(Memory back-up)F47 28 (L) Battery voltage
SCIA2657E

A/T SHIFT LOCK SYSTEM
AT-401
[ALL]
D
E
F
G
H
I
J
K
L
MA
B
AT

5. CHECK STOP LAMP SWITCH
1. Turn ignition switch to OFF.
2. Disconnect stop lamp switch harness connector.
3. Check continuity between stop lamp switch harness connector M12 terminals 3 (G) and 4 (P).
Check stop lamp switch after adjusting brake pedal — refer to BR-6, "
BRAKE PEDAL" .
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6. DETECT MALFUNCTIONING ITEM
Check the following items. If any items are damaged, repair or replace damaged parts.
1. Harness for short or open between battery and stop lamp switch harness connector 3 (G)
2. Harness for short or open between stop lamp switch harness connector 4 (P) and A/T device harness
connector 5 (P)
3. 15A fuse [No.22, located in the fuse block (J/B)]
4. Ignition switch (Refer to PG-2, "
POWER SUPPLY ROUTING" .)
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
7. CHECK GROUND CIRCUIT
1. Turn ignition switch to OFF.
2. Disconnect A/T device harness connector.
3. Check continuity between A/T device harness connector M58
terminal 6 (B) and ground.
4. Connect A/T device harness connector.
OK or NG
OK >> Replace shift lock solenoid or park position switch.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
SCIA1796E
Continuity should exist.
SCIA4284E

TROUBLE DIAGNOSIS FOR SYSTEM
TF-33
C
E
F
G
H
I
J
K
L
MA
B
TF

TROUBLE DIAGNOSIS FOR SYSTEMPFP:00000
Power Supply Circuit for 4WD Control UnitEDS001VM
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
DIAGNOSTIC PROCEDURE
1. CHECK POWER SUPPLY
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 2.
NG >> Check the following. If any items are damaged, repair or
replace damaged parts.

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

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" .
Monitored item [Unit] Condition Display value (Approx.)
BATTERY VOLT [V] Ignition switch: ON Battery voltage
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

TROUBLE DIAGNOSIS FOR SYSTEM
TF-37
C
E
F
G
H
I
J
K
L
MA
B
TF

3. CHECK POWER SUPPLY
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-
minal 9 and ground.
OK or NG
OK >> GO TO 4.
NG >> Check the following. If any item is damaged, repair or
replace damaged parts.

10A fuse (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
4. CHECK 4WD SOLENOID CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect 4WD control unit harness connector.
3. Check resistance between 4WD control unit harness connector
terminals 1 and 2.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5. CHECK HARNESS BETWEEN 4WD CONTROL UNIT AND 4WD SOLENOID
1. Turn ignition switch “OFF”.
2. Disconnect 4WD control unit harness connector and 4WD solenoid harness connector.
3. Check continuity between the following terminals.
–4WD control unit harness connector M107 terminal 1 (OR) and
4WD solenoid harness connector B152 terminal 2 (LG).
–4WD control unit harness connector M107 terminal 2 (L/W) and
4WD solenoid harness connector B152 terminal 1 (L/W).
Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
Connector Terminal (Wire color) Voltage (Approx.)
M107 9 (P/L) - Ground Battery voltage
SDIA2306E
Connector Terminal (Wire color) Resistance (Approx.)
M107 1 (OR) - 2 (L/W) (Ground) 2.45 Ω
SDIA2307E
1 (OR) - 2 (LG) : Continuity should exist.
2 (L/W) - 1 (L/W) : Continuity should exist.
SDIA2301E

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

TF-46
TROUBLE DIAGNOSIS FOR SYMPTOMS

3. SYMPTOM CHECK
Check again.
OK or NG
OK >>INSPECTION END
NG >> Replace unified meter control unit assembly. Refer to DI-32, "
Disassembly and Assembly for
Combination Meter" .
4WD Warning Lamp Does Not Turn OFF Several Seconds after Engine StartedEDS001VV
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to TF-30, "
SELF-DIAG RESULT MODE" .
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system.
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 or 37, located in the fuse block (J/B)]

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