control unit NISSAN NAVARA 2005 Repair Workshop Manual

TROUBLE DIAGNOSIS FOR SYMPTOMS
TF-93
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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.
SDIA3362E
Connector Terminal Voltage (Approx.)
M23 16 - Ground 0V
WDIA0178E
Connector Terminal Voltage (Approx.)
M23 16 - Ground Battery voltage
WDIA0179E

TF-94
TROUBLE DIAGNOSIS FOR SYMPTOMS
4.CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND COMBINATION METER
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Check continuity between transfer control unit harness connec-
tor M106 terminal 38 and combination meter harness connector
M23 terminal 26.
Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5.CHECK INDICATOR LAMP CIRCUIT
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Connect combination meter harness connector.
3. Disconnect transfer control unit harness connector.
4. Turn ignition switch “ON”. (Do not start engine.)
5. Ground the following terminals using suitable wiring.
–Transfer control unit harness connector M106 terminal 38 and
ground.
Do indicator lamps turn on?
OK >> GO TO 6.
NG >> Replace combination meter. Refer toDI-27, "
Removal
and Installation of Combination Meter".
6.CHECK SYMPTOM
Check again.
OK or NG
OK >>INSPECTION END
NG >> GO TO 7.
7.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 >>INSPECTION END
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.
4WD Shift Indicator Lamp or 4LO Indicator Lamp Does Not ChangeEDS0032F
SYMPTOM:
4WD shift indicator lamp or 4LO indicator lamp does not change when switching 4WD shift switch.Continuity should exist.
SDIA3403E
SDIA3452E

TROUBLE DIAGNOSIS FOR SYMPTOMS
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DIAGNOSTIC PROCEDURE
1.CONFIRM THE SYMPTOM
Confirm 4WD shift indicator lamp and 4LO indicator lamp when ignition switch is turned to ON.
Do 4WD shift indicator lamp and 4LO indicator lamp turn on?
YES >> GO TO 2.
NO >> Go toTF-88, "
4WD Shift Indicator Lamp and 4LO Indicator Lamp Do Not Turn ON".
2.CHECK SYSTEM FOR 4WD SHIFT SWITCH
Perform trouble diagnosis for 4WD shift switch system. Refer toTF-59, "
4WD Shift Switch".
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3.CHECK SYSTEM FOR WAIT DETECTION SWITCH
Perform trouble diagnosis for wait detection switch system. Refer toTF-63, "
Wait Detection Switch".
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4.CHECK SYSTEM FOR 4LO SWITCH
Perform trouble diagnosis for 4LO switch system. Refer toTF-56, "
4LO Switch".
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5.CHECK SYSTEM FOR ATP SWITCH
Perform trouble diagnosis for ATP switch system. Refer toTF-82, "
AT P S w i t c h".
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6.CHECK SYMPTOM
Check again.
OK or NG
OK >>INSPECTION END
NG >> GO TO 7.
7.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 8.
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.

TROUBLE DIAGNOSIS FOR SYMPTOMS
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5.CHECK ATP WARNING LAMP CIRCUIT
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect ATP switch harness connector.
3. Turn ignition switch “ON”. (Do not start engine.)
4. Ground the following terminal using suitable wiring.
–ATP switch harness connector F55 terminal 8 and ground.
Does ATP warning lamp turn on?
OK >> GO TO 8.
NG >> GO TO 6.
6.CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND COMBINATION METER
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connector and combination meter harness connector.
3. Check continuity between transfer control unit harness connec-
tor M106 terminal 39 and combination meter harness connector
M23 terminal 21.
Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7.CHECK HARNESS BETWEEN COMBINATION METER AND ATP SWITCH
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect ATP switch harness connector.
3. Check continuity between combination meter harness connector
M23 terminal 1 and ATP switch harness connector F41 terminal
8.
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 SYMPTOM
Check again.
OK or NG
OK >>INSPECTION END
NG >> GO TO 9.
SDIA2832E
Continuity should exist.
SDIA2825E
Continuity should exist.
SDIA2833E

TF-98
TROUBLE DIAGNOSIS FOR SYMPTOMS
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.
10.CHECK TRANSFER INNER PARTS
1. Disassemble transfer assembly. Refer toTF-112, "
Disassembly and Assembly".
2. Check transfer inner parts.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
4WD Shift Indicator Lamp Repeats FlashingEDS0032H
SYMPTOM:
4WD shift indicator lamp keeps flashing.
DIAGNOSTIC PROCEDURE
1.CONFIRM THE SYMPTOM
1. Set4WDshiftswitchto“2WD”.
2. Move vehicle forward and backward, or drive straight increasing or decreasing under 20 km/h (12 MPH).
Dose 4WD shift indicator lamp keep flashing?
YES >> GO TO 2.
NO >>INSPECTION END
2.CHECK SYSTEM FOR WAIT DETECTION SWITCH
Perform trouble diagnosis for wait detection switch system. Refer toTF-63, "
Wait Detection Switch".
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3.CHECK SYSTEM FOR 4LO SWITCH
Perform trouble diagnosis for 4LO switch system. Refer toTF-56, "
4LO Switch".
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4.CHECK SYMPTOM
Check again.
OK or NG
OK >>INSPECTION END
NG >> GO TO 5.

TROUBLE DIAGNOSIS FOR SYMPTOMS
TF-99
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5.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 6.
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.
6.CHECK TRANSFER INNER PARTS
1. Disassemble transfer assembly. Refer toTF-112, "
Disassembly and Assembly".
2. Check transfer inner parts.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
4WD Warning Lamp Flashes SlowlyEDS0032I
SYMPTOM:
While driving, 4WD warning lamp flashes slowly. (Continues to flash until turning ignition switch OFF.)
NOTE:
Slow flashing: 1 time/2 seconds
DIAGNOSTIC PROCEDURE
1.CHECK TIRES
Check the following.
lTire pressure
lWear condition
lLongitudinal tire size (There is no difference between longitudinal tires.)
OK or NG
OK >> GO TO 2.
NG >> Repair or replace damaged parts.
2.CHECK SYMPTOM
Check again.
OK or NG
OK >>INSPECTION END
NG >> GO TO 3.
3.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 >>INSPECTION END
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.

TF-100
TRANSFER CONTROL UNIT
TRANSFER CONTROL UNIT
PFP:33084
Removal and InstallationEDS0032J
REMOVAL
1. Switch 4WD shift switch to 2WD and set transfer assembly to 2WD.
CAUTION:
When removal transfer control unit, transfer state must be at 2WD or AUTO.
2. Turn the ignition switch OFF and disconnect the battery cables.
3. Remove the lower instrument panel LH (LHD models) or lower instrument panel RH (RHD models). Refer
toIP-13, "
LOWER INSTRUMENT PANEL LH"(LHD models) orIP-13, "LOWER INSTRUMENT PANEL
LH"(RHD models).
4. Disconnect the two transfer control unit connectors.
5. Remove the transfer control unit bolts.
6. Remove the transfer control unit.
INSTALLATION
Installation is in the reverse order of removal.
lWhen installing the transfer control unit, tighten bolts to the specified torque.
CAUTION:
Do not connect harness connector to transfer control unit when 4WD shift switch is at 4LO.
lAfter the installation, check 4WD shift indicator pattern. If NG, adjust position between transfer assembly
and transfer control unit. Refer toTF-4, "
Precautions for Transfer Assembly and Transfer Control Unit
Replacement".
SDIA3201E
Transfer control unit bolts : 3.4 N·m (0.35 kg-m, 30 in-lb)

TF-106
TRANSFER CONTROL DEVICE
c. Tighten the bolts to the specified torque. Refer toTF-112, "COM-
PONENTS".
3. Install the breather hose to the transfer control device.
4. Connect the transfer control device connector.
5. After the installation, check the 4WD shift indicator pattern. If
NG, adjust the position between the transfer assembly and
transfer control unit. Refer toTF-4, "
Precautions for Transfer
Assembly and Transfer Control Unit Replacement".
SDIA2212E

TF-112
TRANSFER ASSEMBLY
INSTALLATION
Note the following, and install in the reverse order of removal.
lTighten the bolts to specification.
lAfter the installation, check the transfer fluid level and fluid leak-
age. Refer toTF-12, "
FLUID LEAKAGE AND FLUID LEVEL".
lAfter filling, start the engine for one minute. Then stop the
engine and recheck the transfer fluid.
lAfter the installation, check the 4WD shift indicator pattern. If
NG, adjust the position between the transfer assembly and
transfer control unit. Refer toTF-4, "
Precautions for Transfer
Assembly and Transfer Control Unit Replacement".
Disassembly and AssemblyEDS0032P
COMPONENTS
Bolt length : 45 mm (1.77 in)
Tightening torque : 36 N·m (3.7kg-m, 27 ft-lb)
SDIA3181E
1. Baffle plate 2. Breather tube 3. Front case
4. Snap ring 5. Input oil seal 6. Self-lock nut
7. Companion flange 8. Front oil seal 9. 4LO switch (gray with green paint)
10. ATP switch (black) 11. Rear case 12. Wait detection switch (gray)
13. Gasket 14. Filler plug 15. Check ball
16. Check spring 17. Check plug 18. Drain plug
19. O-ring 20. Transfer control device 21. Harness bracket
SDIA3419E

WW-18
FRONT WIPER AND WASHER SYSTEM
CONSULT-II Function (BCM)
EKS00P53
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II OPERATION
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
1. With the ignition switch OFF, connect CONSULT-II and CON-
SULT-II CONVERTER to data link connector, and then turn igni-
tion switch ON.
2. Touch “START (NISSAN BASED VHCL)”.
3. Touch “BCM” on “SELECT SYSTEM” screen.
If “BCM” is not indicated, refer toGI-50, "
CONSULT-II Data Link
Connector (DLC) Circuit".
BCM diagnosis position Diagnosis mode Description
WIPERWORK SUPPORT Changes the setting for wiper speed at intermittent.
DATA MONITOR Displays BCM input data in real time.
ACTIVE TEST Device operation can be checked by applying a drive signal to device.
BCMSELF-DIAG RESULTS BCM performs self-diagnosis of CAN communication.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
BBIA0538E
BCIA0029E
BCIA0030E