NISSAN X-TRAIL 2001 Service Repair Manual
Manufacturer: NISSAN, Model Year: 2001, Model line: X-TRAIL, Model: NISSAN X-TRAIL 2001Pages: 3833, PDF Size: 39.49 MB
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![NISSAN X-TRAIL 2001 Service Repair Manual TROUBLE DIAGNOSIS
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7.CHECK 4WD ACTUATOR RELAY GROUND CIRCUIT
1. Disconnect the 4WD actuator relay connector.
2. Check continuity between the 4WD actuato NISSAN X-TRAIL 2001 Service Repair Manual TROUBLE DIAGNOSIS
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7.CHECK 4WD ACTUATOR RELAY GROUND CIRCUIT
1. Disconnect the 4WD actuator relay connector.
2. Check continuity between the 4WD actuato](/img/5/57405/w960_57405-2820.png)
TROUBLE DIAGNOSIS
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7.CHECK 4WD ACTUATOR RELAY GROUND CIRCUIT
1. Disconnect the 4WD actuator relay connector.
2. Check continuity between the 4WD actuator relay harness connector E10 terminal No.3 (B) and body
ground.
OK or NG
OK >> 1. Connect the connector and perform self-diagnosis again.
2. Follow self-diagnosis procedure and, at the end, be sure to drive the vehicle at 30 km/h (19
MPH) for at least 1 minute and check that the 4WD warning lamp does not turn ON.
NG >> Repair or replace harness.
4WD Mode Switch SystemEFS001CB
1.INPUT SIGNAL CHECK
Check using the data monitor function of the CONSULT-II. While monitoring the 4WD mode switch items,
press 2WD mode switch. Check the display changes from ## to 2WD. Check the display for AUTO and LOCK
just the same. (## indicates when mode SW is not pressed.)
OK or NG
OK >>●4WD/ABS control unit input/output signal inspection
●Recheck 4WD/ABS control unit connector terminals and connection.
NG >> GO TO 3.
2.INSPECTION OF 4WD MODE SWITCH POWER SUPPLY
●Disconnect 4WD mode switch connector.
●Turn ignition switch ON.
●Measure voltage between 4WD mode change and over switch harness connector M39 terminal No.2 (L),
No.1 (BR).
OK or NG
OK >> GO TO 4.
NG >> Harness malfunction or connector malfunction between ignition switch and 4WD mode switch
connector or connector malfunction.
3.HARNESS CONTINUITY INSPECTION
●Turn ignition switch OFF.
●Confirm the continuity between the following terminals.
–4WD/ABS control unit harness connector E122 terminal No. 26 (L) and 4WD mode switch harness con-
nector M39 terminal No. 2 (L)
–4WD control unit harness connector E122 terminal No. 27 (BR) and 4WD mode switch harness connector
M39 terminal No. 1 (BR)
OK or NG
OK >> GO TO 5.
NG >> Malfunctioning harness or connector.3 (B) - Body ground : Continuity should exist.
2 (L), 1 (BR) - Body ground : 4 V or more.
26 (L) - 2 (L) : Continuity should exist.
27 (BR) - 1 (BR) : Continuity should exist.
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![NISSAN X-TRAIL 2001 Service Repair Manual BRC-38
[4WD/ABS]
TROUBLE DIAGNOSIS
4. HARNESS CONTINUITY INSPECTION
Drive the vehicle for a while and the perform self-diagnosis.
OK or NG
OK >> End
NG >>
●4WD/ABS control unit input/output signal i NISSAN X-TRAIL 2001 Service Repair Manual BRC-38
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TROUBLE DIAGNOSIS
4. HARNESS CONTINUITY INSPECTION
Drive the vehicle for a while and the perform self-diagnosis.
OK or NG
OK >> End
NG >>
●4WD/ABS control unit input/output signal i](/img/5/57405/w960_57405-2821.png)
BRC-38
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TROUBLE DIAGNOSIS
4. HARNESS CONTINUITY INSPECTION
Drive the vehicle for a while and the perform self-diagnosis.
OK or NG
OK >> End
NG >>
●4WD/ABS control unit input/output signal inspection
●Recheck 4WD control unit connector terminals and connection.
Trouble Diagnoses for SymptomsEFS001CC
4WD INDICATOR LAMP DOES NOT COME ON FOR APPROXIMATELY 1 SECOND WHEN THE
IGNITION SWITCH IS TURNED TO ON
Inspection Procedure
1. CHECK BLOWN FUSES BETWEEN IGN AND COMBINATION METER
Check that there are no blown fuses between IGN and combination meter.
OK or NG
OK >> GO TO 2.
NG >> Replace fuse and check again.
2. CHECK CONTINUITY BETWEEN COMBINATION METER AND 4WD/ABS CONTROL UNIT
1. Disconnect combination meter connector and 4WD/ABS control unit connector.
2. Check continuity between combination meter harness connector M44 terminal No.18 (Y/G) and 4WD/ABS
control unit harness connector E122 terminal No.16 (Y/G).
OK or NG
OK >> GO TO 3.
NG >> Check harness between combination meter and 4WD/ABS control unit.
3. CHECK COMBINATION METER POWER CIRCUIT
1. Disconnect combination meter connector.
2. With ignition ON, check the voltage between the combination meter harness connector M46 terminal
No.46 (W/L) (LHD models) or No.59 (W/L) (RHD models) and body ground.
OK or NG
OK >> GO TO 4.
NG >> Check combination meter circuits.
4. CHECK 4WD AUTO LAMP (ON COMBINATION METER) CIRCUIT
Check continuity between combination meter terminal 46 (W/L) (LHD models) or 59 (W/L) (RHD models) and
terminal 18.
OK or NG
OK >> Using CONSULT-II perform self-diagnosis.
NG >> Check for burned-out bulb in 4WD AUTO lamp.18 (YG) - 16 (Y/G) : Continuity should exist.
46 (W/L) (LHD models) or 59 (W/L) (RHD models) - Body ground:
Battery voltage
46 (W/L) (LHD models) or 59 (RHD models) - 18:
Continuity should exist.
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![NISSAN X-TRAIL 2001 Service Repair Manual TROUBLE DIAGNOSIS
BRC-39
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4WD WARNING LAMP DOES NOT ILLUMINATE WITH IGNITION ON
1.INSPECTION OF BLOWN FUSE BETWEEN IGNITION SWITCH AND COMBINATION METER
Check blown NISSAN X-TRAIL 2001 Service Repair Manual TROUBLE DIAGNOSIS
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4WD WARNING LAMP DOES NOT ILLUMINATE WITH IGNITION ON
1.INSPECTION OF BLOWN FUSE BETWEEN IGNITION SWITCH AND COMBINATION METER
Check blown](/img/5/57405/w960_57405-2822.png)
TROUBLE DIAGNOSIS
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4WD WARNING LAMP DOES NOT ILLUMINATE WITH IGNITION ON
1.INSPECTION OF BLOWN FUSE BETWEEN IGNITION SWITCH AND COMBINATION METER
Check blown fuse between ignition switch and combination meter.
OK or NG
OK >> GO TO 2 (No blown fuse)
NG >> Replace the fuse and perform the inspection again.
2.COMBINATION METER POWER SUPPLY CIRCUIT INSPECTION
1. Disconnect combination meter connector.
2. Check voltage between the combination meter harness connector M46 terminal No. LHD models: 46 (W/
L) RHD models: 59 (W/L) and body ground.
OK or NG
OK >> Malfunctioning combination meter.
NG >> Check fuse 10A [#11] to combination meter harness and connector.
4WD WARNING LAMP DOES NOT GO OUT SEVERAL SECONDS AFTER ENGINE
STARTED.(4WD MODE INDICATOR LAMP GOES OUT)
1.PERFORM SELF-DIAGNOSIS
Using CONSULT-II perform self-diagnosis.
OK or NG
OK >> No malfunction detected. Perform inspection again.
NG >>
●Determine the location of the malfunction according to the result of Self-diagnosis using CON-
SULT-II. (Malfunction is present in the 4WD system.)
●CONSULT-II does not display 4WD system-related trouble codes. GO TO 2.
2.4WD CONTROL UNIT CONNECTOR CONNECTION INSPECTION
●Check 4WD/ABS control unit connector for proper connection.
OK or NG
OK >> Reconnect the 4WD/ABS control unit connector properly and perform inspection again.
NG >> Repair or replace the connector.
HEAVY TIGHT-CORNER BRAKING SYMPTOM OCCURS WHEN THE VEHICLE IS DRIVEN IN
AUTO MODE AND THE STEERING WHEEL IS TURNED FULLY TO EITHER SIDE AFTER THE
ENGINE IS STARTED
1.PERFORM SELF-DIAGNOSIS
Using CONSULT-II perform self-diagnosis.
OK or NG
OK >> GO TO 2. (No self-diagnosis malfunction indicated.)
NG >> Determine the location of the malfunction according to the result of Self-diagnosis using CON-
SULT-II. (Malfunction is present in the 4WD system.)
Page 2824 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual BRC-40
[4WD/ABS]
TROUBLE DIAGNOSIS
2. CHECK USING THE DATA MONITOR FUNCTION OF THE CONSULT- II
●Perform inspection by the data monitor function of the CONSULT-II.
●Check that the operation is in A NISSAN X-TRAIL 2001 Service Repair Manual BRC-40
[4WD/ABS]
TROUBLE DIAGNOSIS
2. CHECK USING THE DATA MONITOR FUNCTION OF THE CONSULT- II
●Perform inspection by the data monitor function of the CONSULT-II.
●Check that the operation is in A](/img/5/57405/w960_57405-2823.png)
BRC-40
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TROUBLE DIAGNOSIS
2. CHECK USING THE DATA MONITOR FUNCTION OF THE CONSULT- II
●Perform inspection by the data monitor function of the CONSULT-II.
●Check that the operation is in AUTO mode.
●Measure voltage when the accelerator pedal is not depressed. (Accelerator pedal not depressed: Approx.
0.5V or lower)
●Measure the current supplied to the E-TS solenoid valve. (Accelerator pedal not depressed: Approx. 0A)
OK or NG
OK >> GO TO 3. (No self-diagnosis malfunction indicated.)
NG >>
●Not in AUTO mode. GO TO 3.
●Voltage when accelerator pedal is not depressed is higher than approximately 0.5V.
●4WD solenoid valve current when the accelerator pedal is not depressed is other than 0A.
●Countermeasure: Keep the vehicle idling for approximately 15 minutes before checking again.
(Voltage when accelerator pedal is not depressed will be automatically reset to zero during this
period.)
3. INSPECTION USING 4WD MODE CHANGE-OVER SWITCH
●On data monitor screen of the CONSULT-II, check 4WD mode switch.
●Check if the display changes from ## to 2WD mode when the 2WD switch is pressed.
●Check if the display changes from ## to AUTO mode when the AUTO switch is pressed.
●Check if the display changes from ## to LOCK mode when the LOCK switch is pressed.
OK or NG
OK >> No malfunction detected.
NG >>
●Not in AUTO mode. (In 2WD or LOCK mode)
Countermeasure: Slightly depress the accelerator pedal and check that the operation mode
changes to LOCK mode.
●Check circuit between 4WD mode switch harness connector M39 terminal No.1 (BR) and
4WD control unit harness connector E122 terminal No. 27 (BR).
(AUTO mode is not available because a malfunction is present in the 2WD mode harness.)
NOTICE:
Mechanism of 4WD mode change-over
●2WD mode: Operation changes to 2WD mode when 4WD/ABS control unit harness connector
E122 terminal No. 27 (BR) is shorted to ground.
●AUTO mode: Operation changes to AUTO mode when 4WD/ABS control unit harness connec-
tor E122 terminals No. 27 (BR) and No. 26 (L) is shorted to ground.
●LOCK mode: Operation changes to LOCK mode when 4WD/ABS control unit harness connec-
tor E122 terminal No. 26 (L) is shorted to ground.
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4WD MODES CANNOT BE SWITCHED AFTER ENGINE IS STARTED
1.INSPECTION USING 4WD MODE CHANGE-OVER SWITCH
●Drive modes cannot be switched afte NISSAN X-TRAIL 2001 Service Repair Manual TROUBLE DIAGNOSIS
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4WD MODES CANNOT BE SWITCHED AFTER ENGINE IS STARTED
1.INSPECTION USING 4WD MODE CHANGE-OVER SWITCH
●Drive modes cannot be switched afte](/img/5/57405/w960_57405-2824.png)
TROUBLE DIAGNOSIS
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4WD MODES CANNOT BE SWITCHED AFTER ENGINE IS STARTED
1.INSPECTION USING 4WD MODE CHANGE-OVER SWITCH
●Drive modes cannot be switched after the engine is started.
●On data monitor screen of the CONSULT-II, check 4WD mode switch.
●Check if the display changes from ## to 2WD mode when the 2WD switch is pressed.
●Check if the display changes from ## to AUTO mode when the AUTO switch is pressed.
●Check if the display changes from ## to LOCK mode when the LOCK switch is pressed.
OK or NG
OK >> No malfunction detected.
NG >>
●CONSULT-II display does not change from ## when the 2WD switch is pressed. Check harness
of the 2WD switch.
●CONSULT-II display does not change from ## when the AUTO switch is pressed. Check har-
ness of the 2WD switch and LOCK switch.
●CONSULT-II display does not change from ## when the LOCK switch is pressed. Check har-
ness of the LOCK switch.
●Perform 4WD mode change-over switch inspection.
WHILE DRIVING, 4WD WARNING LAMP FLASHES RAPIDLY. (WHEN IT FLASHERS FOR
APPROX. ONE MINUTE, THEN DOES NOT ILLUMINATE.)
●While driving, 4WD warning lamp flashes rapidly. (When it flashes for Approx. One minute, then does not
illuminate.)
Rapid flashing: 2 times/second
This phenomenon protects drivetrain parts when a heavy load is applied to the electronically controlled
coupling and multiple disc clutch temperature increases. It is not a malfunction.
When the difference of revolution speed by or with the front and rear wheel with AUTO mode, the shift
switch occasionally changes to LOCK mode automatically. This is not a malfunction.
When the difference of revolution speed between the front and rear wheel with AUTO mode, the shift
switch occasionally changes to LOCK mode automatically. This is not a malfunction.
WHILE DRIVING, 4WD WARNING LAMP FLASHES SLOWLY. (WHEN IT CONTINUES TO ILLU-
MINATE UNTIL ENGINE TURNS OFF.)
1. Check using the data monitor function of the CONSULT-II.
●Perform inspection with the data monitor function of the CONSULT-II.
●Check if the value of IMPROPER SIZE TIRE MONITOR is 8 mm (0.31 in) or more.
●Stop the engine. Restart the engine and drive the vehicle at 20 km/h (12 MPH) or faster for approxi-
mately 200 seconds. Confirm the 4WD warning lamp flashes slowly.
(Check if the value of IMPROPER SIZE TIRE MONITOR is 8 mm (0.31 in) or more.)
When the tire size is normal, the value of IMPROPER SIZE TIRE MONITOR will change from 8 mm
(0.31 in) or more to 0 to 4 mm (0 to 0.16 in) (normal condition) after the vehicle is driven 20 km/h (12
MPH) or faster for approximately 5 seconds.
2. Tire inspection
●Inspection of tire pressure
●Wear condition
●Check size of the front and rear tires. (No excessive difference should be observed.) Refer to GI-44,
"Wheels & Tires"
VEHICLE DOES NOT ENTER 4WD MODE EVEN THOUGH 4WD WARNING LAMP IS OFF.
1. Check using the data monitor function of the CONSULT-II.
Perform inspection by the data monitor function of the CONSULT-II.
–Check if the vehicle operation changes to 2WD, AUTO, and LOCK modes.
–Check current supplied to the 4WD solenoid valve in AUTO mode.
2. Check using the active test function of the CONSULT-II.Accelerator pedal not depressed : Approx. 0 A
Accelerator pedal depressed : Approx. 2.8 A
Page 2826 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual BRC-42
[4WD/ABS]
TROUBLE DIAGNOSIS
Using active test mode of CONSULT-II, supply current to the 4WD solenoid valve and check that the mon-
itor current becomes close to this supply current.
●The 4WDc NISSAN X-TRAIL 2001 Service Repair Manual BRC-42
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Using active test mode of CONSULT-II, supply current to the 4WD solenoid valve and check that the mon-
itor current becomes close to this supply current.
●The 4WDc](/img/5/57405/w960_57405-2825.png)
BRC-42
[4WD/ABS]
TROUBLE DIAGNOSIS
Using active test mode of CONSULT-II, supply current to the 4WD solenoid valve and check that the mon-
itor current becomes close to this supply current.
●The 4WDcontrol unit is normal when the difference between 4WD solenoid valve current and the monitor
current is within ±10%.
It is necessary to inspect the electronically controlled coupling assembly.
TIGHT-CORNER BRAKING SYMPTOM OCCURS WHEN THE VEHICLE IS STARTED IN AUTO
WARNING LAMP REMAIN OFF).
1. THROTTLE POSITION SENSOR AND HARNESS INSPECTION
Check accelerator pedal stroke.
OK or NG
OK >> Perform self-diagnosis again.
NG >> Malfunctioning throttle position sensor harness
4WD ACTUATOR RELAY (4WD SOLENOID ACTUATOR RELAY) TURNS ON/OFF FREQUENTLY
1. SELF-DIAGNOSIS RESULT IS 4WD ACTUATOR RELAY (4WD SOLENOID ACTUATOR RELAY) ON
ERROR AND OFF ERROR
Is self-diagnosis result [ON error and OFF error]?
OK or NG
OK >> GO TO 2.
NG >> Repair or replace as necessary.
2. 4WD ACTUATOR RELAY (4WD SOLENOID ACTUATOR RELAY) AND HARNESS INSPECTION
Is self-diagnosis result [ON error and OFF error]?
OK or NG
OK >> Perform self-diagnosis again.
NG >> Malfunctioning 4WD actuator relay (4WD solenoid actuator relay) harness
ABS Warning Lamp Does Not Illuminate. (ABS Warning Lamp Does Not Come
On When The Ignition Switch Is Turned ON.)
EFS001BP
●Replace the combination meter control unit.
ABS Warning Lamp Illuminates With Ignition ON, But Does Not Illuminates After
A Few Seconds. (ABS Warning Lamp Has Illuminated.)
EFS001BQ
1. 4WD/ABS CONTROL MODULE CONNECTOR CONNECTION INSPECTION
●Remove glove box on the passenger side and check 4WD/ABS control module connector for proper con-
nection.
Is inspection result OK?
YES >> Proceed to 2. (4WD/ABS control unit connector is properly connected.)
NO >>
●Connect the 4WD/ABS control unit connector and perform inspection again.
2. USING CONSULT, PERFORM SELF-DIAGNOSIS
●Connect the CONSULT-II and perform self-diagnosis.
Is inspection result OK?
YES >> GO TO 3. (No self-diagnosis malfunction indicated.)
NO >> Perform inspection according to the trouble codes displayed on the CONSULT-II. Refer to the
“DTC chart”. Example) Monitor value becomes Approx. 1 A for 4WD solenoid current 1 A setting.
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3.CHECK CONTINUITY BETWEEN IGNITION SWITCH AND ABS WARNING LAMP
●Disconnect 4WD/ABS control unit connector.
●Check continuity between NISSAN X-TRAIL 2001 Service Repair Manual TROUBLE DIAGNOSIS
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3.CHECK CONTINUITY BETWEEN IGNITION SWITCH AND ABS WARNING LAMP
●Disconnect 4WD/ABS control unit connector.
●Check continuity between](/img/5/57405/w960_57405-2826.png)
TROUBLE DIAGNOSIS
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3.CHECK CONTINUITY BETWEEN IGNITION SWITCH AND ABS WARNING LAMP
●Disconnect 4WD/ABS control unit connector.
●Check continuity between ignition switch and 4WD/ABS control module terminal No. 4. (Open circuit
check)
Is inspection result OK?
YES >> Continuity exists. Connect 4WD/ABS control module connector, check again.
NO >> Continuity does not exist. Check ABS warning lamp path.
4.CHECK FUSE
●Check if Fuse No.8 is working normally.
Is the check result OK?
YES >> Repair or replace the harness in between 4WD/ABS control unit and IGN.
NO >> Replace the fuse and replace again.
●If the figure of the monitor is with in ± 10% of the set value of E-TS solenoid electric current, 4WD/ABS C/
U is operating normally. Check for electric control coupling ASSY is required.
4WD Warning Lamp Does Not Illuminate With Ignition ON.EFS001BR
1.INSPECTION OF BLOWN 4WD WARNING LAMP BULB
●Remove glove box on the passenger side and disconnect the 4WD/ABS control unit connector.
●Confirm continuity between 4WD/ABS control unit connector terminals No. 3 (IGN) and No. 4 (ABS warn-
ing lamp).
Is inspection result OK?
YES >> GO TO 3. (Continuity exists.)
NO >>
●Check 4WD warning lamp harness.
●Remove meter control module assembly and check for blown 4WD warning lamp bulb.
2.4WD ACTUATOR RELAY HARNESS INSPECTION
●Open the hood and check that the 4WD relay is properly installed in the relay box.
●Confirm continuity between 4WD/ABS control unit connector terminals No. 7 (4WD warning lamp) and No.
104 (ground).
●Confirm continuity between 4WD/ABS control unit connector terminals No. 3 (IGN) and No. 18 (4WD
actuator relay).
Is inspection result OK?
YES >> Continuity exists. Connect 4WD/ABS control unit connector, check again.
NO >> Check ABS warning lamp harness.
4WD Warning Lamp Does Not Go Out Several Seconds After Engine Is Started.
(Drive Mode Indicator Lamp Goes Out.)
EFS001BS
1.USING CONSULT, PERFORM SELF-DIAGNOSIS
4WD warning lamp does not go out several seconds after the engine is started. (Drive mode indicator lamp
goes out.)
Is inspection result OK?
YES >> No malfunction detected. Perform inspection again.
NO >>
●Determine the location of the malfunction according to the result of self-diagnosis using CON-
SULT. (Malfunction is present in the 4WD system.)
●CONSULT-II does not display ABS -related trouble codes. Proceed to 2.
Page 2828 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual BRC-44
[4WD/ABS]
TROUBLE DIAGNOSIS
2. 4WD/ABS CONTROL UNIT CONNECTOR CONNECTION INSPECTION
●Remove glove box on the passenger side and check 4WD/ABS control unit connector for proper connec-
tion.
I NISSAN X-TRAIL 2001 Service Repair Manual BRC-44
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TROUBLE DIAGNOSIS
2. 4WD/ABS CONTROL UNIT CONNECTOR CONNECTION INSPECTION
●Remove glove box on the passenger side and check 4WD/ABS control unit connector for proper connec-
tion.
I](/img/5/57405/w960_57405-2827.png)
BRC-44
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TROUBLE DIAGNOSIS
2. 4WD/ABS CONTROL UNIT CONNECTOR CONNECTION INSPECTION
●Remove glove box on the passenger side and check 4WD/ABS control unit connector for proper connec-
tion.
Is inspection result OK?
YES >> 4WD/ABS control unit connector is properly connected.
NO >> Reconnect the 4WD/ABS control module connector properly and perform inspection again.
Heavy Tight-corner Braking Symptom Occurs When The Vehicle Is Driven In
Auto Mode And The Steering Wheel Is Turned Fully To Either Side After The
Engine Is Started.
EFS001BT
1. USING CONSULT, PERFORM OR SELF-DIAGNOSIS
Heavy tight-corner braking symptom occurs when the vehicle is driven in AUTO mode and the steering wheel
is turned fully to either side after the engine is started.
Is inspection result OK?
YES >> GO TO 2. (No self-diagnosis malfunction indicated.)
NO >> Determine the location of the malfunction according to the result of self-diagnosis using CON-
SULT-II. (Malfunction is present in the 4WD system.)
2. CHECK USING THE DATA MONITOR FUNCTION OF THE CONSULT-II
●Perform inspection by the data monitor function of the CONSULT-II.
●Check that the operation is in AUTO mode.
●Measure voltage when the accelerator pedal is not depressed. (Accelerator pedal not depressed: Approx.
0.5V or lower)
●Measure the current supplied to the E-TS solenoid valve. (Accelerator pedal not depressed: Approx. 0A)
Is inspection result OK?
YES >> GO TO 3. (No self-diagnosis malfunction indicated.)
NO >>
●Not in AUTO mode. GO TO 3.
●Voltage when accelerator pedal is not depressed is higher than approximately 0.5V.
●E-TS solenoid valve current when accelerator pedal is not depressed is other than 0A.
●Countermeasure: Keep the vehicle idling for approximately 15 minutes before checking again.
(Voltage when accelerator pedal is not depressed will be automatically reset to zero during this
period.)
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3.INSPECTION USING DRIVE MODE CHANGE-OVER SWITCH
●On data monitor screen of the CONSULT, check 4WD mode switch.
●Check if the display NISSAN X-TRAIL 2001 Service Repair Manual TROUBLE DIAGNOSIS
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3.INSPECTION USING DRIVE MODE CHANGE-OVER SWITCH
●On data monitor screen of the CONSULT, check 4WD mode switch.
●Check if the display](/img/5/57405/w960_57405-2828.png)
TROUBLE DIAGNOSIS
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3.INSPECTION USING DRIVE MODE CHANGE-OVER SWITCH
●On data monitor screen of the CONSULT, check 4WD mode switch.
●Check if the display changes from ## to 2WD mode when the 2WD switch is pressed.
●Check if the display changes from ## to AUTO mode when the AUTO switch is pressed.
●Check if the display changes from ## to LOCK mode when the LOCK switch is pressed.
Is inspection result OK?
YES >> No malfunction detected.
NO >>
●Not in AUTO mode. (In 2WD or LOCK mode)
Countermeasure: Slightly depress the accelerator pedal and check that the operation mode
changes to LOCK mode.
●Check path between drive mode switch and 4WD/ABS control unit E122 terminal No.27 (BR).
(AUTO mode is not available because a malfunction is present in the 2WD mode harness.)
NOTICE:
Mechanism of drive mode change-over
●2WD mode: Operation changes to 2WD mode when 4WD/ABS control unit connector terminal
No. 27 is shorted to ground.
●AUTO mode: Operation changes to AUTO mode when 4WD/ABS control unit connector termi-
nals No. 27 and No. 26 were shorted to ground.
●LOCK mode: Operation changes to LOCK mode when 4WD/ABS control unit connector E122
terminal No. 26 (L) is shorted to ground.
Drive Modes Cannot Be Switched After Engine Is Started.EFS001BU
1.INSPECTION USING DRIVE MODE CHANGE-OVER SWITCH
●Drive modes cannot be switched after the engine is started.
●On data monitor screen of the CONSULT, check 4WD mode switch.
●Check if the display changes from ## to 2WD mode when the 2WD switch is pressed.
●Check if the display changes from ## to AUTO mode when the AUTO switch is pressed.
●Check if the display changes from ## to LOCK mode when the LOCK switch is pressed.
Is inspection result OK?
YES >> No malfunction detected.
NO >>
●CONSULT-II display does not change from ## when the 2WD switch is pressed. Check harness
of the 2WD switch.
●CONSULT-II display does not change from ## when the AUTO switch is pressed. Check har-
ness of the 2WD switch and LOCK switch.
●CONSULT-II display does not change from ## when the LOCK switch is pressed. Check har-
ness of the LOCK switch.
●Perform drive mode change-over switch inspection.
Wheel Driving, 4WD Warning Lamp Flashes Rapidly. (When It Flashes For
Approx. One Minute, Then Does Not Illuminate.)
EFS001BV
●Wheel driving, 4WD warning lamp flashes rapidly. (When it flashes for Approx. 1 minute, then does not
illuminate.)
Rapid flashing: 2 times/second
This phenomenon protects drivetrain parts when a heavy load is applied to the electronically controlled
coupling and multiple disc clutch temperature increases. It is not a malfunction.
Wheel Driving, 4WD Warning Lamp Flashes Slowly. (When It Continues To Illu-
minate Until Engine Turns OFF.)
EFS001BW
1. Check using the data monitor function of the CONSULT-II.
●Perform inspection with the data monitor function of the CONSULT-II.
●Check if the value of IMPROPER SIZE TIRE MONITOR is 8 mm or more.
Page 2830 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual BRC-46
[4WD/ABS]
TROUBLE DIAGNOSIS
●Stop the engine. Restart the engine and drive the vehicle at 20 km/h or faster for approximately 200
seconds. Confirm the 4WD warning lamp flashe NISSAN X-TRAIL 2001 Service Repair Manual BRC-46
[4WD/ABS]
TROUBLE DIAGNOSIS
●Stop the engine. Restart the engine and drive the vehicle at 20 km/h or faster for approximately 200
seconds. Confirm the 4WD warning lamp flashe](/img/5/57405/w960_57405-2829.png)
BRC-46
[4WD/ABS]
TROUBLE DIAGNOSIS
●Stop the engine. Restart the engine and drive the vehicle at 20 km/h or faster for approximately 200
seconds. Confirm the 4WD warning lamp flashes slowly.
(Check if the value of IMPROPER SIZE TIRE MONITOR is 8 mm or more.)
When the tire size is normal, the value of IMPROPER SIZE TIRE MONITOR will change from 8 mm or
more to 0 - 4 mm (normal condition) after the vehicle is driven 20 km/h or faster for approximately 5
seconds.
2. Tire inspection
●Inspection of tire air pressure
●Wear condition
●Check size of the front and rear tires. (No excessive difference should be observed.) Refer to GI-44,
"Wheels & Tires"
Vehicle Does Not Enter 4WD Mode Even Though 4WD Warning Lamp Is OFF.EFS001BX
1. Check using the data monitor function of the CONSULT.
Perform inspection by the data monitor function of the CONSULT.
–Check if the vehicle operation changes to 2WD, AUTO, and LOCK modes.
–Check current supplied to the E-TS solenoid valve in AUTO mode.
2. Check using the active test function of the CONSULT.
Using active test mode of CONSULT, supply current to the E-TS solenoid valve and check that the monitor
current becomes close to this supply current.
●The 4WD/ABS control unit is normal when the difference between E-TS solenoid valve current and the
monitor current is within ±10%.
It is necessary to inspect the electronically controlled coupling assembly.
Tight-corner Braking Symptom Occurs When The Vehicle Is Started In Auto
Mode (4WD Warning Lamp Remain OFF).
EFS001BY
1. THROTTLE POSITION SENSOR AND HARNESS INSPECTION
Check accelerator pedal stroke.
Is inspection result OK?
YES >> Perform self-diagnosis again.
NO >> Malfunctioning throttle position sensor harness
E-TS Actuator Relay (4WD Solenoid Actuator Relay) Turns ON/OFF Frequently.EFS001BZ
1. SELF-DIAGNOSIS RESULT IS E-TS ACTUATOR RELAY (4WD ACTUATOR RELAY) ON ERROR AND
OFF ERROR
Is self-diagnosis result [ON error and OFF error]?
Is inspection result OK?
YES >> GO TO 2.
NO >> Repair or replace as necessary.
2. E-TS ACTUATOR RELAY (4WD SOLENOID ACTUATOR RELAY) AND HARNESS INSPECTION
Is self-diagnosis result [ON error and OFF error]?
Is inspection result OK?
YES >> Perform self-diagnosis again.
NO >> Malfunctioning E-TS actuator relay (4WD solenoid actuator relay) harness Accelerator pedal not depressed : Approx. 0 A
Accelerator pedal depressed : Approx. 2.8 A
Example) Monitor value becomes Approx. 1 A for E-TS solenoid current 1 A setting.