2003 NISSAN X-TRAIL lock

TROUBLE DIAGNOSIS FOR SYSTEM
TF-33
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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

TF-36
TROUBLE DIAGNOSIS FOR SYSTEM

4WD SolenoidEDS001VP
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
*: The values are changed by throttle opening and engine speed.
DIAGNOSTIC PROCEDURE

Check the following if “4WD SOLENOID [C1204]” is displayed in self-diagnostic results of CONSULT-II.
1. CHECK 4WD SOLENOID SIGNAL
With CONSULT-II
1. Start engine.
2. Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT-II.
3. Read out the value of “ETS SOLENOID”.
*: The values are changed by throttle opening and engine speed.
OK or NG
OK >> GO TO 6.
NG >> GO TO 2.
2. CHECK 4WD SOLENOID
1. Turn ignition switch “OFF”.
2. Disconnect 4WD solenoid harness connector.
3. Check resistance between 4WD solenoid harness connector
B152 terminals 1 and 2.
OK or NG
OK >> GO TO 3.
NG >> 4WD solenoid is malfunctioning. Replace electric con-
trolled coupling. Refer to RFD-22, "
Disassembly and
Assembly" .
Monitored item [Unit] Condition Display value
ETS SOLENOID [A]Engine speed: At idle2WD mode
Approx. 0.000A AUTO mode
LOCK mode
Engine speed: 3,000 rpm or more constant2WD mode Approx. 0.000A
AUTO mode Approx. 0.000 - 1.500A*
LOCK mode Approx. 2.800A
Condition Display value
Engine speed: At idle2WD mode
Approx. 0.000A AUTO mode
LOCK mode
Engine speed: 3,000 rpm or
more constant2WD mode Approx. 0.000A
AUTO mode Approx. 0.000 - 1.500A*
LOCK mode Approx. 2.800A
SDIA1885E
1 - 2 : Approx. 2.45Ω
PDIA0489E

TF-40
TROUBLE DIAGNOSIS FOR SYSTEM

4WD Mode Switch EDS001VS
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
DIAGNOSTIC PROCEDURE

Check the following if “MODE SW [C1209]” is detected in self-diagnosis results of CONSULT-II.
1. CHECK 4WD MODE SWITCH SIGNAL
With CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT-II.
3. Read out monitor “4WD MODE SW” with operating 4WD mode
switch.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2. CHECK 4WD MODE SWITCH
1. Turn ignition switch “OFF”.
2. Disconnect 4WD mode switch harness connector.
3. Operate 4WD mode switch and check continuity between 4WD
mode switch harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Replace 4WD mode switch.
Monitor item Condition Display value
4WD MODE SW [2WD/AUTO/LOCK] 4WD mode switch2WD 2WD
AUTO AUTO
LOCK LOCK
Monitor item Condition Display value
4WD MODE SW 4WD mode switch2WD 2WD
AUTO AUTO
LOCK LOCK
SDIA1898E
Connector Terminal Condition Continuity
M392 - 44WD mode switch: AUTO Yes
Except the above No
3 - 44WD mode switch: LOCK Yes
Except the above No
4 - 74WD mode switch: 2WD Yes
Except the above No
SDIA2302E

TF-42
TROUBLE DIAGNOSIS FOR SYSTEM

6. CHECK 4WD INDICATOR LAMP AND LOCK INDICATOR LAMP
1. Turn ignition switch “OFF”.
2. Check 4WD indicator lamp and LOCK indicator lamp “ON” for approx. 1 second when the ignition switch
is turned “ON”.
Do 4WD indicator lamp and LOCK indicator lamp
“ON” for approx. 1 second?
YES >>INSPECTION END
NO >> Go to TF-44, "
4WD Indicator Lamp and LOCK Indicator Lamp Do Not Turn ON for Approx. 1 Sec-
ond When The Ignition Switch Is Turned to ON" .
COMPONENT INSPECTION
1. Turn ignition switch “OFF”.
2. Disconnect 4WD mode switch harness connector.
3. Operate 4WD mode switch and check continuity between 4WD
mode switch harness connector terminals.
4. If NG, replace 4WD mode switch.
Engine Control SignalEDS0026S
DIAGNOSTIC PROCEDURE

Check the following if “ENGINE SIGNAL 1 [C1210]” is displayed in self-diagnosis results of CONSULT-II.
1. CHECK DTC WITH ECM
Perform self-diagnosis with ECM. Refer to EC-52, "
Emission-related Diagnostic Information" (QR engine
models with EURO-OBD), EC-513, "
Emission-related Diagnostic Information" (QR engine models without
EURO-OBD), EC-892, "
Emission-related Diagnostic Information" (YD engine models with EURO-OBD), EC-
1223, "Diagnostic Trouble Code (DTC)" (YD engine models without EURO-OBD).
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system.
NO >> GO TO 2.
2. CHECK 4WD CONTROL UNIT
Check 4WD control unit input/output signal. Refer to TF-28, "
4WD Control Unit Input/Output Signal Reference
Va l u e s" .
OK or NG
OK >> GO TO 3.
NG >> Check 4WD control unit pin terminals for damage or loose connection with harness connector. If
any item is damaged, repair or replace damaged parts.
3. CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG
OK >>INSPECTION END
NG >> Perform self-diagnosis with ECM again. Refer to EC-52, "
Emission-related Diagnostic Informa-
tion" (QR engine models with EURO-OBD), EC-513, "Emission-related Diagnostic Information"
(QR engine models without EURO-OBD), EC-892, "Emission-related Diagnostic Information" (YD
Connector Terminal Condition Continuity
M392 - 44WD mode switch: AUTO Yes
Except the above No
3 - 44WD mode switch: LOCK Yes
Except the above No
4 - 74WD mode switch: 2WD Yes
Except the above No
SDIA2302E

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

TF-48
TROUBLE DIAGNOSIS FOR SYMPTOMS

4. CHECK 4WD CONTROL UNIT
Check 4WD control unit input/output signal. Refer to TF-28, "
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-32, "
Disassembly and Assembly for
Combination Meter" .
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
EDS001VX
NOTE:

Light tight-corner braking symptom may occur depending on driving conditions in AUTO mode.
This is not malfunction.

Heavy tight-corner braking symptom occurs when vehicle is driven in the following conditions:
LOCK mode, steering wheel is turned fully to either sides, and accelerator pedal was depressed.
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 SYSTEM FOR 4WD MODE SWITCH
Perform trouble diagnosis for 4WD mode switch system. Refer to TF-40, "
4WD Mode Switch" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3. CHECK ACCELERATOR PEDAL POSITION SIGNAL CIRCUIT
Perform self-diagnosis for ECM. Refer to EC-52, "
Emission-related Diagnostic Information" (QR engine mod-
els with EURO-OBD), EC-513, "
Emission-related Diagnostic Information" (QR engine models without EURO-
OBD), EC-892, "
Emission-related Diagnostic Information" (YD engine models with EURO-OBD) or EC-1223,
"Diagnostic Trouble Code (DTC)" (YD engine models without EURO-OBD).
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system.
NO >> GO TO 4.

TRANSFER ASSEMBLY
TF-57
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Disassembly and AssemblyEDS001YQ
COMPONENTS
1. Pinion lock nut 2. Companion flange 3. Pinion sleeve oil seal
4. Pinion rear bearing 5. Dust cover 6. Pinion sleeve
7. O-ring 8. Collapsible spacer 9. Pinion front bearing
10. Drive pinion 11. Pinion sleeve shim 12. Adapter case oil seal
13. Drain plug 14. Adapter case 15. Oil gutter
16. O-ring 17. Gear ring bearing adjusting shim
(Adapter case side)18. Gear ring bearing (Adapter case
side)
19. Gear ring oil seal 20. Gear ring 21. Drive gear
22. Gear ring bearing (Transfer case
side)23. Gear ring bearing adjusting shim
(Transfer case side)24. Oil defense
25. Filler plug 26. Transfer case oil seal 27. Transfer case
28. Breather tube 29. Plug
SDIA1860E