2005 NISSAN X-TRAIL ignition

TF-48
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-34, "
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-32, "
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 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

TROUBLE DIAGNOSIS FOR SYMPTOMS
TF-49
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3. CHECK 4WD CONTROL UNIT GROUND CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect 4WD control unit harness connector.
3. Check continuity between 4WD control unit harness connector
M107 terminals 10 (B/R), 11 (B/R) and ground.
Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
4. CHECK 4WD CONTROL UNIT
Check 4WD control unit input/output signal. Refer to TF-30, "
4WD Control Unit Input/Output Signal Reference
Va l u e s" .
OK or NG
OK >> GO TO 5.
NG >> Check 4WD control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts.
5. SYMPTOM CHECK
Check again.
OK or NG
OK >>INSPECTION END
NG >> Replace unified meter control unit assembly. Refer to DI-34, "
Disassembly and Assembly for
Combination Meter" .
4WD Mode Cannot Be Switched after Engine Is StartedEDS001VW
DIAGNOSTIC PROCEDURE
1. CHECK 4WD WARNING LAMP
Confirm 4WD warning lamp.
Does 4WD warning lamp turn on?
YES >> Go to TF-48, "4WD Warning Lamp Does Not Turn OFF Several Seconds after Engine Started" .
NO >> GO TO 2.
2. CHECK SYSTEM FOR 4WD MODE SWITCH
Perform trouble diagnosis for 4WD mode switch system. Refer to TF-42, "
4WD Mode Switch" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3. CHECK SYSTEM FOR CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to TF-32, "
SELF-DIAG RESULT MODE" .
Is the
“CAN COMM CIRCUIT [U1000]” displayed?
YES >> Perform trouble diagnosis for CAN communication line. Refer to TF-14, "CAN Communication
Unit" .
NO >> GO TO 4.Continuity should exist.
SDIA2305E

TROUBLE DIAGNOSIS FOR SYMPTOMS
TF-51
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4. CHECK SYSTEM FOR 4WD SOLENOID
Perform trouble diagnosis for 4WD solenoid system. Refer to TF-37, "
4WD Solenoid" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. CHECK ELECTRIC CONTROLLED COUPLING
1. Turn ignition switch “OFF”.
2. Set the selector lever (shift lever) to “N” (neutral) position and disengage the parking brake.
3. Lift up the vehicle.
4. Rotate the propeller shaft by hand.
5. Hold rear wheel of right and left lightly.
Does rear wheel rotate?
YES >> Replace electric controlled coupling for mechanical malfunction (clutch sticking etc.). Refer to
RFD-22, "
Disassembly and Assembly" .
NO >> GO TO 6.
6. SYMPTOM CHECK
Check again.
OK or NG
OK >>INSPECTION END
NG >> GO TO 7.
7. CHECK 4WD CONTROL UNIT
Check 4WD control unit input/output signal. Refer to TF-30, "
4WD Control Unit Input/Output Signal Reference
Va l u e s" .
OK or NG
OK >>INSPECTION END
NG >> Check 4WD control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts.
Vehicle Does Not Enter 4WD Mode Even Though 4WD Warning Lamp Turned to
OFF
EDS001VY
CAUTION:
Make sure that parking brake is securely released if the symptom has occurred at vehicle speed of 10
km/h (6 MPH) or more.

TF-52
TROUBLE DIAGNOSIS FOR SYMPTOMS

DIAGNOSTIC PROCEDURE
1. CHECK PARKING BRAKE SWITCH SIGNAL
With CONSULT-II
1. Turn ignition switch “ON”.
2. Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT-II.
3. Operate parking brake and read out monitor “P BRAKE SW”.
OK or NG
OK >> GO TO 2.
NG >> Check the following. If any items are damaged, repair or
replace damaged parts.

Parking brake switch

Brake warning lamp circuit. Refer to DI-36, "Wiring
Diagram — WARN —/LHD Models" or DI-44, "Wiring Diagram — WARN —/RHD Models" .
2. CHECK 4WD SOLENOID
Check 4WD solenoid. Refer to TF-39, "
COMPONENT INSPECTION" .
OK or NG
OK >> GO TO 3.
NG >> Replace electric controlled coupling for malfunction of 4WD solenoid. Refer to RFD-22, "
Disas-
sembly and Assembly" .
3. CHECK 4WD CONTROL UNIT
Check 4WD control unit input/output signal. Refer to TF-30, "
4WD Control Unit Input/Output Signal Reference
Va l u e s" .
OK or NG
OK >> GO TO 4.
NG >> Check 4WD control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts.
4. SYMPTOM CHECK
Check again.
OK or NG
OK >>INSPECTION END
NG >> Replace electric controlled coupling for mechanical malfunction (mechanical engagement of
clutch is not possible.). Refer to RFD-22, "
Disassembly and Assembly" .
While Driving, 4WD Warning Lamp Flashes Rapidly (When Flashing in Approx.
1 Minute and Then Turning OFF)
EDS001VZ
NOTE:
Rapid flashing: 2 times/second
This symptom protects drivetrain parts when a heavy load is applied to the electric controlled coupling and
multiple disc clutch temperature increases. It is not a malfunction.
When this symptom occurs, stop vehicle and allow it to idle for some times. Flashing will stop and system will
be restored.
Monitor item Condition Display value
P BRAKE SWParking brake operated ON
Parking brake not operated OFF
SDIA1933E

TROUBLE DIAGNOSIS FOR SYMPTOMS
TF-53
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While Driving, 4WD Warning Lamp Flashes Slowly (When Continuing to Flash
until Turning Ignition Switch OFF)
EDS001W0
NOTE:
Slow flashing: 1 time/2 seconds
DIAGNOSTIC PROCEDURE
1. CHECK TIRE
Check the following.

Tire pressure

Wear condition

Longitudinal tire size (There shall be no difference of tire size between front and rear tires.)
OK or NG
OK >> GO TO 2.
NG >> Drive at vehicle speed of 20 km/h (12 MPH) or more for 5 seconds or more after repairing or
replacing damaged parts. (Initialize improper size tire information.)
2. CHECK INPUT SIGNAL OF TIRE DIAMETER
With CONSULT-II
1. Start engine.
2. Drive at 20 km/h (12 MPH) or more for approx. 200 seconds.
3. Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT-II.
4. Check monitor “DIS-TIRE MONI”.
Display of
“DIS-TIRE MONI”
“0-4mm”>>INSPECTION END
Except for “0-4mm”>>GO TO 3.
3. CHECK 4WD CONTROL UNIT
Check 4WD control unit input/output signal. Refer to TF-30, "
4WD Control Unit Input/Output Signal Reference
Va l u e s" .
OK or NG
OK >> GO TO 4.
NG >> Check 4WD control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts.
4. SYMPTOM CHECK
Check again.
OK or NG
OK >>INSPECTION END
NG >> Replace 4WD control unit.
SDIA1900E

PRECAUTIONS
BR-3
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PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EFS002F9
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for Brake SystemEFS000BZ

Clean dust on brake pads, shoes, drums, and back plates with a vacuum dust collector. Do not blow with
compressed air.

Recommended fluid is brake fluid “DOT 3” or “DOT 4”.

Never reuse drained brake fluid.

Be careful not to splash brake fluid on painted areas such as the body. If brake fluid is splashed or spilled
on painted areas, wipe it off and flush the area with water immediately.

Use only clean brake fluid when cleaning master cylinder and disc brake components.

Never use mineral oils such as gasoline or kerosene to clean. They will ruin the rubber parts and cause
improper operation.

Always use a flare nut torque wrench to securely tighten brake
tube flare nuts.

Brake system is an important safety part. If a brake fluid leak is
detected, always disassemble the related parts. If damage,
deformation or excessive wear is detected, replace affected
parts with new ones.

Before starting operation, be sure to turn the ignition switch OFF
and disconnect the ABS actuator and control module connector
or battery cables.

When installing brake piping, be sure to check torque.SBR820BA

BR-8
BRAKE FLUID

BRAKE FLUIDPFP:KN100
Checking Brake Fluid Level EFS000C5

Confirm reservoir tank fluid level is within the specifications
(between MAX and MIN lines).

Visually check around reservoir tank for fluid leaks.

If fluid level is excessively low, check brake system for leaks.

If warning lamp remains illuminated after parking lever is
released, check brake system for fluid leakage.
Checking Brake LineEFS001C5
CAUTION:
If leakage occurs around joints, retighten or, if necessary, replace damaged parts.
1. Check brake line (tube and hoses) for cracks, deterioration or
other damage. Replace and damaged parts.
2. Check for oil leakage by fully depressing brake pedal while
engine is running.
Changing Brake FluidEFS000C3
CAUTION:

Refill with new brake fluid “DOT 3 or DOT 4”.

Always keep fluid level higher than minimum line on reservoir tank.

Never reuse drained brake fluid.

Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on painted areas, wash it away water immediately.
1. Connect a vinyl tube to bleed valve.
2. Drain brake fluid gradually from bleed valve of each wheel while
depressing brake pedal.
3. Turn OFF ignition switch. Remove ABS actuator connector.
SFIA0066J
SBR389C
BRA0007D

BRAKE FLUID
BR-9
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4. Be sure there is no foreign material in reservoir tank. Refill with
new brake fluid.
5. Connect a vinyl tube to bleed valve.
6. Rest foot on brake pedal. Loosen bleed valve. Slowly depress
pedal until it stops. Tighten bleed valve. Release brake pedal.
Repeat this process a few times at 2-3 second intervals until
new brake fluid flows out.
For bleeding procedure. Refer to BR-9, "
Bleeding Brake Sys-
tem" .
Bleeding Brake SystemEFS000C4
CAUTION:

Carefully monitor brake fluid level at master cylinder during bleeding operation.

Fill reservoir with new brake fluid “DOT 3” or “DOT 4”. Make sure it is full at all times while bleed-
ing air out of system.

Place a container under master cylinder to avoid spillage of brake fluid.

While bleeding, pay attention to master cylinder fluid level.

For models with ABS, turn ignition switch OFF and disconnect ABS actuator connectors or bat-
tery ground cable.

Bleed air in the following order.
Right rear brake, left front brake, left rear brake, right front brake
1. Turn OFF ignition switch. Remove ABS actuator connector.
2. Connect a vinyl tube to bleed valve.
3. Fully depress the brake pedal 4 to 5 times.
4. With brake pedal depressed, loosen air bleeder and bleed air.
5. Close bleed valve.
6. Slowly release brake pedal.
7. Tighten bleed valve to the specified torque.
8. Repeat steps 2 - 7. Occasionally refill master cylinder reservoir tank. Be sure to keep it at least half-full.
BRA0006D
: 6.9 - 8.8 N·m (0.7 - 0.9 kg-m, 61- 78 in-lb)