NISSAN NAVARA 2005 Repair Workshop Manual

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 SYSTEM
TF-75
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Actuator Position SwitchEDS00327
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 [Unit] Content Condition Display value
SHIFT POS SW1 [ON/
OFF]Condition of actuator posi-
tion switch 1
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:
2WD and 4LOON
4WD shift switch: 4H OFF
SHIFT POS SW2 [ON/
OFF]Condition of actuator posi-
tion switch 24WD shift switch: 4LO ON
4WD shift switch:
2WD and 4HOFF
SHIFT POS SW3 [ON/
OFF]Condition of actuator posi-
tion switch 34WD shift switch:
2WD and 4HON
4WD shift switch: 4LO OFF
SHIFT POS SW4 [ON/
OFF]Condition of actuator posi-
tion switch 44WD shift switch:
4H and 4LOON
4WD shift switch: 2WD OFF
TerminalWire
colorItem Condition Data (Approx.)
10 LG Actuator position switch 1
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.4WD shift switch: 2WD and 4LO 0V
4WD shift switch: 4H Battery voltage
11 W Actuator position switch 24WD shift switch: 4LO 0V
4WD shift switch: 2WD and 4H Battery voltage
12 BR Actuator position switch 34WD shift switch: 2WD and 4H 0V
4WD shift switch: 4LO Battery voltage
13 V Actuator position switch 44WD shift switch: 4H and 4LO 0V
4WD shift switch: 2WD Battery voltage

TF-76
TROUBLE DIAGNOSIS FOR SYSTEM
DIAGNOSTIC PROCEDURE
1.CHECK ACTUATOR POSITION SWITCH SIGNAL
With CONSULT-II
1. Start engine.
2. Depress brake pedal and stop vehicle.
3. For A/T models, move A/T selector lever to “N” position. For M/T models, move M/T shift lever to neutral
position.
4. Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT-II.
5. Read out the value of “SHIFT POS SW1”, “SHIFT POS SW2”,
“SHIFT POS SW3”, “SHIFT POS SW4”.
Without CONSULT-II
1. Start engine.
2. Depress brake pedal and stop vehicle.
3. For A/T models, move A/T selector lever to “N” position. For M/T models, move M/T shift lever to neutral
position.
4. Check voltage between transfer control unit harness connector
terminal and ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.
Monitored item Condition Display value
SHIFT POS SW14WD shift switch: 2WD and 4LO ON
4WD shift switch: 4H OFF
SHIFT POS SW24WD shift switch: 4LO ON
4WD shift switch: 2WD and 4H OFF
SHIFT POS SW34WD shift switch: 2WD and 4H ON
4WD shift switch: 4LO OFF
SHIFT POS SW44WD shift switch: 4H and 4LO ON
4WD shift switch: 2WD OFF
Connector Terminal ConditionVoltage
(Approx.)
E10510 -
Ground4WD shift switch: 2WD and 4LO 0V
4WD shift switch: 4HBattery
voltage
11 -
Ground4WD shift switch: 4LO 0V
4WD shift switch: 2WD and 4HBattery
voltage
12 -
Ground4WD shift switch: 2WD and 4H 0V
4WD shift switch: 4LOBattery
voltage
13 -
Ground4WD shift switch: 4H and 4LO 0V
4WD shift switch: 2WDBattery
voltage
PDIA0224E
SDIA3369E

TROUBLE DIAGNOSIS FOR SYSTEM
TF-77
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2.CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND ACTUATOR POSITION SWITCH
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connector and the transfer control device (actuator position
switch) harness connector.
3. Check continuity between the following terminals.
–Transfer control unit harness connector M105 terminal 10 and
transfer control device (actuator position switch) harness con-
nector F47 terminal 26.
–Transfer control unit harness connector M105 terminal 11 and
transfer control device (actuator position switch) harness con-
nector F47 terminal 20.
–Transfer control unit harness connector M105 terminal 12 and
transfer control device (actuator position switch) harness con-
nector F47 terminal 21.
–Transfer control unit harness connector M105 terminal 13 and
transfer control device (actuator position switch) harness connector F47 terminal 25.
Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Check continuity between transfer control device (actuator posi-
tion switch) harness connector F47 terminal 22 and ground.
Also check harness for short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to power in harness or con-
nectors.
4.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 5.
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.
5.CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG
OK >>INSPECTION END
NG >> Replace transfer control device. Refer toTF-105, "
Removal and Installation". Continuity should exist.
SDIA3370E
Continuity should exist.
SDIA2815E

TF-78
TROUBLE DIAGNOSIS FOR SYSTEM
Transfer Control Device
EDS00328
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 [Unit] Content Condition Display value
SHIFT ACT/R MON
[ON/OFF]Operating condition of
actuator motor relay (inte-
grated in transfer control
unit)
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.When 4WD shift switch is
operatedON
When 4WD shift switch is
not operatedOFF
Te r m i n a lWire
colorItem Condition Data (Approx.)
25 LG Ignition switch monitorIgnition switch: ON Battery voltage
Ignition switch: OFF 0V
27 L Actuator motor power supplyIgnition switch: ON Battery voltage
Ignition switch: OFF
(5 seconds after ignition switch is turned OFF)0V
32 B Ground Always 0V
40 V Transfer shut off relayIgnition switch: ON 0V
Ignition switch: OFF
(5 seconds after ignition switch is turned OFF)Battery voltage

TROUBLE DIAGNOSIS FOR SYSTEM
TF-79
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DIAGNOSTIC PROCEDURE
1.CHECK POWER SUPPLY
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
terminal 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.
l10A fuse (No. 63, located in the fuse and relay box).
l40A fusible link (No.J, located in the fuse and fusible link box).
lHarness for short or open between battery and transfer shut off relay 1 harness connector E84
terminal 3.
lHarness for short or open between transfer control unit harness connector M106 terminal 27
and transfer shut off relay 1 harness connector E84 terminal 5.
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 1 harness connector E84 terminal 2
and ground.
lHarness for short or open between ignition switch and transfer control unit harness connector
M105 terminal 25.
lBattery and ignition switch. Refer toPG-4, "POWER SUPPLY ROUTING CIRCUIT".
lTransfer shut off relay 1. Refer toTF-54, "COMPONENT INSPECTION".
Connector Terminal Voltage (Approx.)
M105 25 - Ground
0V
M106 27 - Ground
SDIA3371E
Connector Terminal Voltage (Approx.)
M105 25 - Ground
Battery voltage
M106 27 - Ground
SDIA3372E

TF-80
TROUBLE DIAGNOSIS FOR SYSTEM
2.CHECK GROUND CIRCUIT
1. Turn ignition switch "OFF". (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connector.
3. Check continuity between transfer control unit harness connec-
tor M106 terminal 32 and ground.
Also check harness for short to power.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to power in harness or con-
nectors.
3.CHECK POWER SUPPLY SIGNAL
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Connect transfer control unit harness connector.
3. Check voltage between transfer control unit harness connector
terminal and ground.
4. Turn ignition switch “ON”. (Do not start engine.)
5. Check voltage between transfer control unit harness connector
terminal and ground.
OK or NG
OK >> GO TO 4.
NG >> Check the following. If any items are damaged, repair or
replace damaged parts.
lHarness for short or open between battery and trans-
fer shut off relay 2 harness connector E85 terminal 1.
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.
lTransfer shut off relay 2. Refer toTF-54, "COMPONENT INSPECTION".
4.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-1 >> With CONSULT-II: GO TO 5.
OK-2 >> Without CONSULT-II: 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. Continuity should exist.
SDIA2818E
Connector Terminal Voltage (Approx.)
M106 40 - Ground Battery voltage
SDIA2819E
Connector Terminal Voltage (Approx.)
M106 40 - Ground 0V
SDIA2820E

TROUBLE DIAGNOSIS FOR SYSTEM
TF-81
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5.PERFORM SELF-DIAGNOSIS (WITH CONSULT-II)
With CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “SELF-DIAG RESULTS” mode for “ALL MODE AWD/4WD” with CONSULT-II.
3. Touch “ERASE”.
4. Turn ignition switch “OFF” and wait at least 10 seconds.
5. Perform the self-diagnosis again.
Is the
“SHIFT ACT CIR [P1819]”displayed?
YES >> Replace transfer control unit. Refer toTF-100, "Removal and Installation".
NO >>INSPECTION END
6.PERFORM SELF-DIAGNOSIS (WITHOUT CONSULT-II)
Without CONSULT-II
1. Perform the self-diagnosis and then erase self-diagnostic results. Refer toTF-49, "
SELF-DIAGNOSTIC
PROCEDURE (WITHOUT CONSULT-II)"andTF-51, "ERASE SELF-DIAGNOSIS".
2. Perform the self-diagnosis again.
Do the self-diagnostic results indicate transfer control device?
YES >> Replace transfer control unit. Refer toTF-100, "Removal and Installation".
NO >>INSPECTION END
Engine Speed Signal (ECM)EDS00329
DIAGNOSTIC PROCEDURE
1.CHECK DTC WITH ECM
Perform self-diagnosis with ECM. Refer toEC-27, "
ON BOARD DIAGNOSTIC (OBD) SYSTEM".
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system.
NO >> GO TO 2.
2.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 3.
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.
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 toEC-27, "
ON BOARD DIAGNOSTIC (OBD) SYS-
TEM".

TF-82
TROUBLE DIAGNOSIS FOR SYSTEM
CAN Communication Line
EDS0032A
DIAGNOSTIC PROCEDURE
1.CHECK CAN COMMUNICATION CIRCUIT
With CONSULT-II
1. Turn ignition switch “ON” and start engine.
2. Select “SELF-DIAG RESULTS” mode for “ALL MODE AWD/4WD” with in CONSULT-II.
3. Perform the self-diagnosis.
Is the
“CAN COMM CIRCUIT [U1000]”displayed?
YES >> Print out CONSULT-II screen and go toLAN-3, "Precau-
tions When Using CONSULT-II".
NO >>INSPECTION END
AT P S w i t c hEDS0032B
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.
SDIA2390E
Monitored item [Unit] Content Condition Display value
ATP SWITCH [ON/OFF] Condition of ATP switch
lVehicle stopped
lEngine running
lA/T selector lever “N”
position with brake
pedal depressed.4WD shift switch:
4H to 4LO or 4LO to 4H
(While actuator motor is
operating.)ON
Except the above OFF
Te r m i n a lWire
colorItem Condition Data (Approx.)
23 R ATP switch
lVehicle stopped
lEngine running
lA/T selector
lever “N” position
with brake pedal
depressed.4WD shift switch:
4H to 4LO or 4LO to 4H
(While actuator motor is operating.)0V
Except the above Battery voltage

TROUBLE DIAGNOSIS FOR SYSTEM
TF-83
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DIAGNOSTIC PROCEDURE
1.CHECK ATP SWITCH 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 “ATP SWITCH”.
Without CONSULT-II
1. Start engine.
2. Check voltage between transfer control unit harness connector
terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2.CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND ATP SWITCH
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connector and the ATP switch harness connector.
3. Check continuity between transfer control unit harness connec-
tor M105 terminal 23 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 3.
NG >> Repair or replace damaged parts.
Condition Display value
lVehicle stopped
lEngine running
lA/T selector lever
“N” position with
brake pedal
depressed.4WD shift switch: 4H to 4LO or 4LO to 4H
(While actuator motor is operating.)ON
Except the above OFF
SDIA2391E
Connector Terminal ConditionVoltage
(Approx.)
M10523 -
Ground
lVehicle stopped
lEngine running
lA/T selector lever
“N” position with
brake pedal
depressed.4WD shift switch:
4H to 4LO or 4LO to
4H
(While actuator motor
is operating.)0V
Except the aboveBattery
voltage
SDIA3375E
Continuity should exist.
SDIA3376E