2005 NISSAN NAVARA lock

TROUBLE DIAGNOSIS FOR SYSTEM
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Actuator MotorEDS00326
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
TRANSFER CONTROL UNIT TERMINALS AND REFERENCE VALUE
Data are reference value and are measured between each terminal and ground.
CAUTION:
When using a circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.Monitored item Content Condition Display value
SHIFT ACT 1 [ON/OFF]Output condition to actua-
tor motor (clockwise)
lVehicle stopped
lEngine running
lFor A/T models, A/T
selector lever “N” posi-
tion with brake pedal
depressed.
lFor M/T models, M/T
shift lever neutral posi-
tion with clutch and
brake pedal depressed.4WD shift switch:
2WDto4Hor4Hto4LO
or 2WD to 4LOON
Except the above OFF
SHIFT AC MON1 [ON/
OFF]Check signal for transfer
control unit signal output4WD shift switch:
2WDto4Hor4Hto4LO
or 2WD to 4LOON
Except the above OFF
SHIFT ACT 2 [ON/OFF]Output condition to actua-
tor motor (counterclock-
wise)4WD shift switch:
4LO to 4H or 4H to 2WD
or 4LO to 2WDON
Except the above OFF
SHIFT AC MON2 [ON/
OFF]Check signal for transfer
control unit signal output4WD shift switch:
4LO to 4H or 4H to 2WD
or 4LO to 2WDON
Except the above OFF
TerminalWire
colorItem Condition Data (Approx.)
27 L Actuator motor power supplyIgnition switch: ON Battery voltage
Ignition switch: OFF
(5 seconds after ignition switch is turned OFF)0V
28 BR Actuator motor (+)
lVehicle stopped
lEngine running
lFor A/T models,
A/T selector
lever “N” position
with brake pedal
depressed.
lFor M/T models,
M/T shift lever
neutral position
with clutch and
brake pedal
depressed.When 4WD shift switch is operated
(while actuator motor is operating)Battery voltage
®0V
When 4WD shift switch is not operated 0V
31 G Actuator motor (-) Always 0V
42 LG Transfer shift high relay4WD shift switch:
2WD to 4H or 4H to 4LO or 2WD to 4LO0V
Except the above Battery voltage
47 OTransfer shift high relay moni-
tor4WD shift switch:
2WD to 4H or 4H to 4LO or 2WD to 4LO
(while actuator motor is operating)Battery voltage
®0V
Except the above 0V
48 RTransfer shift low relay moni-
tor4WD shift switch:
4LO to 4H or 4H to 2WD or 4LO to 2WD
(while actuator motor is operating)Battery voltage
®0V
Except the above 0V
50 Y Transfer shift low relay4WD shift switch:
4LO to 4H or 4H to 2WD or 4LO to 2WD0V
Except the above Battery voltage

TROUBLE DIAGNOSIS FOR SYSTEM
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7.CHECK ACTUATOR MOTOR OPERATION CIRCUIT
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connector and the transfer control device (actuator motor) har-
ness connector.
3. Remove transfer shift high relay and transfer shift low relay. Refer toTF-21, "
Location of Electrical Parts".
4. Check continuity between the following terminals.
–Transfer control unit harness connector M106 terminal 47 and
transfer control device (actuator motor) harness connector F47
terminal 23.
–Transfer control unit harness connector M106 terminal 48 and
transfer control device (actuator motor) harness connector F47
terminal 24.
–Transfer control device (actuator motor) harness connector F47
terminal 24 and transfer shift high relay harness connector E27
terminal 3.
–Transfer control device (actuator motor) harness connector F47
terminal 23 and transfer shift low relay harness connector E29
terminal 3.
Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
8.CHECK ACTUATOR MOTOR
1. Remove transfer control device. Refer toTF-105, "
Removal and Installation".
2. Check operation by applying battery voltage to transfer control
device (actuator motor) terminals 23 and 24.
CAUTION:
Be careful not to overheat the harness.
Does actuator motor rotate?
YES >> GO TO 9.
NO >> Replace transfer control device (actuator motor). Refer
toTF-105, "
Removal and Installation".
9.CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer toTF-38, "
Transfer Control Unit Input/Output Signal Ref-
erence Values".
OK or NG
OK >> GO TO 10.
NG >> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
SDIA2811E
Continuity should exist.
SDIA3394E
Terminal Actuator motor
24 (Battery voltage) - 23 (Ground) Clockwise rotate
23 (Battery voltage) - 24 (Ground) Counterclockwise rotate
SDIA2386E

TF-74
TROUBLE DIAGNOSIS FOR SYSTEM
10.CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG
OK >>INSPECTION END
NG >> Replace transfer control unit. Refer toTF-100, "
Removal and Installation".
COMPONENT INSPECTION
Actuator Motor
1. Remove transfer control device. Refer toTF-105, "Removal and Installation".
2. Check operation by applying battery voltage to transfer control
device (actuator motor) terminals 23 and 24.
CAUTION:
Be careful not to overheat the harness.
3. If NG, replace transfer control device (actuator motor). Refer to
TF-105, "
Removal and Installation".
Transfer Shift Relay
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Remove transfer shift high relay and transfer shift low relay. Refer toTF-21, "
Location of Electrical Parts".
3. Apply 12V direct current between transfer relay terminals 1 and 2.
4. Check continuity between relay terminals 3 and 4, and 3 and 5.
5. If NG, replace transfer shift high relay or transfer shift low relay.
Refer toTF-21, "
Location of Electrical Parts".
Terminal Actuator motor
24 (Battery voltage) - 23 (Ground) Clockwise rotate
23 (Battery voltage) - 24 (Ground) Counterclockwise rotate
SDIA2386E
Terminal Condition Continuity
3-412V direct current supply between terminals 1 and 2 No
OFF Yes
3-512V direct current supply between terminals 1 and 2 Yes
OFF No
LDIA0099E

TROUBLE DIAGNOSIS FOR SYMPTOMS
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DIAGNOSTIC PROCEDURE
1.CHECK TRANSFER CONTROL UNIT POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connector.
3. Check voltage between transfer control unit harness connector
terminals and ground.
4. Turn ignition switch “ON”. (Do not start engine.)
5. Check voltage between transfer control unit harness connector
terminals and ground.
OK or NG
OK >> GO TO 2.
NG >> Check the following. If any items are damaged, repair or replace damaged parts.
l40A fusible link (No.J, located in the fuse and fusible link box). Refer toPG-4, "POWER SUP-
PLY ROUTING CIRCUIT".
l10A fuses [No. 18, located in the fuse block (J/B) and No. 63 and 64 located in the fuse and
relay box]. Refer toPG-4, "
POWER SUPPLY ROUTING CIRCUIT".
lHarness for short or open between battery and transfer control unit harness connector M105
terminal 19.
lHarness for short or open between battery and transfer shut off relay 2 harness connector E85
terminals 1 and 3.
lHarness for short or open between battery and transfer shut off relay 1 harness connector E84
terminal 3.
lHarness for short or open between ignition switch and transfer control unit harness connector
M105 terminal 25.
lHarness for short or open between ignition switch and transfer shut off relay 1 harness connec-
tor E84 terminal 1.
lHarness for short or open between transfer shut off relay 2 harness connector E85 terminal 5
and transfer control unit harness connector M106 terminals 44, 45.
lHarness for short or open between transfer shut off relay 1 harness connector E84 terminal 5
and transfer control unit harness connector M106 terminals 44, 45.
lHarness for short or open between transfer shut off relay 2 harness connector E85 terminal 2
and transfer control unit harness connector M106 terminal 40.
lHarness for open between transfer shut off relay 1 harness connector E84 terminal 2 and
ground.
lBattery and ignition switch. Refer toPG-4, "POWER SUPPLY ROUTING CIRCUIT".
lTransfer shut off relay 1, 2. Refer toTF-54, "COMPONENT INSPECTION".
Connector Terminal Voltage (Approx.)
M10519 - Ground Battery voltage
25 - Ground 0V
M10640 - Ground Battery voltage
44 - Ground
0V
45 - Ground
SDIA3360E
Connector Terminal Voltage (Approx.)
M10519 - Ground
Battery voltage
25 - Ground
M10640 - Ground 0V
44 - Ground
Battery voltage
45 - Ground
SDIA3361E

TF-90
TROUBLE DIAGNOSIS FOR SYMPTOMS
2.CHECK TRANSFER CONTROL UNIT GROUND CIRCUIT
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connectors.
3. Check continuity between transfer control unit harness connec-
tor M105 terminals 6, 18, M106 terminal 32 and ground.
Also check harness for short to power.
OK or NG
OK >> GO TO 3.
NG >>
lRepair open circuit or short to power in harness or
connectors.
lHarness for short or open between transfer shut off
relay harness connector E85 terminal 2 and transfer
control unit harness connector M106 terminal 40.
3.CHECK COMBINATION METER POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect combination meter harness connector.
3. Check voltage between combination meter harness connector
terminals and ground.
4. Turn ignition switch “ON”. (Do not start engine.)
5. Check voltage between combination meter harness connector
terminals and ground.
OK or NG
OK >> GO TO 4.
NG >> Check the following. If any items are damaged, repair or
replace damaged parts.
l10A fuse [No. 14, located in the fuse block (J/B)] or
ignition switch.
lHarness for short or open between ignition switch and combination meter harness connector
M23 terminal 16. Continuity should exist.
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Connector Terminal Voltage (Approx.)
M23 16 - Ground 0V
WDIA0178E
Connector Terminal Voltage (Approx.)
M23 16 - Ground Battery voltage
WDIA0179E

TF-92
TROUBLE DIAGNOSIS FOR SYMPTOMS
DIAGNOSTIC PROCEDURE
1.CHECK TRANSFER CONTROL UNIT POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connector.
3. Check voltage between transfer control unit harness connector
terminals and ground.
4. Turn ignition switch “ON”. (Do not start engine.)
5. Check voltage between transfer control unit harness connector
terminals and ground.
OK or NG
OK >> GO TO 2.
NG >> Check the following. If any items are damaged, repair or replace damaged parts.
l40A fusible link (No.J, located in the fuse and fusible link box). Refer toPG-4, "POWER SUP-
PLY ROUTING CIRCUIT".
l10A fuses [No. 18, located in the fuse block (J/B) and No. 63 and 64 located in the fuse and
relay box]. Refer toPG-4, "
POWER SUPPLY ROUTING CIRCUIT".
lHarness for short or open between battery and transfer control unit harness connector M105
terminal 19.
lHarness for short or open between battery and transfer shut off relay 2 harness connector E85
terminals 1 and 3.
lHarness for short or open between battery and transfer shut off relay 1 harness connector E84
terminal 3.
lHarness for short or open between ignition switch and transfer control unit harness connector
M105 terminal 25.
lHarness for short or open between ignition switch and transfer shut off relay 1 harness connec-
tor E84 terminal 1.
lHarness for short or open between transfer shut off relay 2 harness connector E85 terminal 5
and transfer control unit harness connector M106 terminals 44, 45.
lHarness for short or open between transfer shut off relay 1 harness connector E84 terminal 5
and transfer control unit harness connector M106 terminals 44, 45.
lHarness for short or open between transfer shut off relay 2 harness connector E85 terminal 2
and transfer control unit harness connector M106 terminal 40.
lHarness for open between transfer shut off relay 1 harness connector E84 terminal 2 and
ground.
lBattery and ignition switch. Refer toPG-4, "POWER SUPPLY ROUTING CIRCUIT".
lTransfer shut off relay 1, 2. Refer toTF-54, "COMPONENT INSPECTION".
Connector Terminal Voltage (Approx.)
M10519 - Ground Battery voltage
25 - Ground 0V
M10640 - Ground Battery voltage
44 - Ground
0V
45 - Ground
SDIA3360E
Connector Terminal Voltage (Approx.)
M10519 - Ground
Battery voltage
25 - Ground
M10640 - Ground 0V
44 - Ground
Battery voltage
45 - Ground
SDIA3361E

TROUBLE DIAGNOSIS FOR SYMPTOMS
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2.CHECK TRANSFER CONTROL UNIT GROUND CIRCUIT
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connectors.
3. Check continuity between transfer control unit harness connec-
tor M105 terminals 6, 18, M106 terminal 32 and ground.
Also check harness for short to power.
OK or NG
OK >> GO TO 3.
NG >>
lRepair open circuit or short to power in harness or
connectors.
lHarness for short or open between transfer shut off
relay harness connector E85 terminal 2 and transfer
control unit harness connector M106 terminal 40.
3.CHECK COMBINATION METER POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect combination meter harness connector.
3. Check voltage between combination meter harness connector
terminals and ground.
4. Turn ignition switch “ON”. (Do not start engine.)
5. Check voltage between combination meter harness connector
terminals and ground.
OK or NG
OK >> GO TO 4.
NG >> Check the following. If any items are damaged, repair or
replace damaged parts.
l10A fuse [No. 14, located in the fuse block (J/B)] or
ignition switch.
lHarness for short or open between ignition switch and combination meter harness connector
M23 terminal 16. Continuity should exist.
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Connector Terminal Voltage (Approx.)
M23 16 - Ground 0V
WDIA0178E
Connector Terminal Voltage (Approx.)
M23 16 - Ground Battery voltage
WDIA0179E

FRONT OIL SEAL
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FRONT OIL SEALPFP:38189
Removal and InstallationEDS0032K
REMOVAL
1. Partially drain the transfer fluid. Refer toTF-12, "DRAINING".
2. Remove the front propeller shaft. Refer toPR-4, "
Removal and Installation".
3. Remove the companion flange self-lock nut, using Tool.
4. Put a matching mark on top of the front drive shaft in line with
the mark on the companion flange.
CAUTION:
Use paint to make the matching mark on the front drive
shaft. Do not damage the front drive shaft.
5. Remove the companion flange, using suitable tool.
6. Remove the front oil seal from the front case, using Tool.
CAUTION:
Do not damage front case.Tool number : KV40104000
LDIA0142E
SDIA2779E
WDIA0193E
Tool number : KV381054S0
LDIA0144E