2005 NISSAN NAVARA Repair Workshop Manual

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Page 2753 of 3171

NISSAN NAVARA 2005 Repair Workshop Manual RFD-50
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
TROUBLE DIAGNOSIS
CAUTION:
When using a circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.
CONSULT-

RFD-50
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
TROUBLE DIAGNOSIS
CAUTION:
When using a circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.
CONSULT-II Function (DIFF LOCK)EDS003B0
FUNCTION
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II SETTING PROCEDURE
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.
NOTE:
For details, refer to the separate “CONSULT-II Operations Manual”.
1. Turn ignition switch “OFF”.
2. Connect CONSULT-II and CONSULT-II CONVERTER to data
link connector on vehicle.
3. Turn ignition switch “ON”.
11 GR Differential lock solenoid (-)
lVehicle stopped
lEngine running
l4WD shift switch: 4LODifferential lock mode switch: ON 0V
Differential lock mode switch: OFF Battery voltage
12 L Differential lock solenoid (+)
lVehicle stopped
lEngine running
l4WD shift switch: 4LODifferential lock mode switch: ON 0V
Differential lock mode switch: OFF Battery voltage
13 G K-LINE (CONSULT-II signal) – –
15 RPower supply
(Memory back-up)Ignition switch: ON Battery voltage
Ignition switch: OFF Battery voltage
20 BRDifferential lock position
switch
lVehicle stopped
lEngine running
l4WD shift switch: 4LODifferential lock mode switch: ON
(DIFF LOCK indicator lamp: ON)0V
Differential lock mode switch: OFF
(DIFF LOCK indicator lamp: OFF)Battery voltage
21 SB DIFF LOCK indicator lamp Ignition switch: ONDIFF LOCK indicator lamp: ON 0V
DIFF LOCK indicator lamp: OFF Battery voltage
22 GDifferential lock mode switch
(OFF)Ignition switch: ONDifferential lock mode switch: ON 0V
Differential lock mode switch: OFF Battery voltage Te r m i n a lWire
colorItem Condition Data (Approx.)
Diagnostic test mode FunctionReference
page
Self-diagnostic results
lSelf-diagnostic results can be read and erased quickly.RFD-51
Data monitorlInput/Output data in the differential lock control unit can be read.RFD-53
CAN diagnostic support monitorlThe results of transmit/receive diagnosis of CAN communication can be read.LAN-15
BDIA0013E

Page 2754 of 3171

NISSAN NAVARA 2005 Repair Workshop Manual TROUBLE DIAGNOSIS
RFD-51
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
C
E
F
G
H
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K
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MA
B
RFD
4. Touch “START (NISSAN BASED VHCL)”.
5. Touch “DIFF LOCK”.
If “DIFF LOCK” is not indicated, go t

TROUBLE DIAGNOSIS
RFD-51
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
C
E
F
G
H
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MA
B
RFD
4. Touch “START (NISSAN BASED VHCL)”.
5. Touch “DIFF LOCK”.
If “DIFF LOCK” is not indicated, go toGI-50, "
CONSULT-II Data
Link Connector (DLC) Circuit".
6. Perform each diagnostic test mode according to each service
procedure.
SELF-DIAG RESULTS MODE
Operation Procedure
1. Perform “CONSULT-II SETTING PROCEDURE”. Refer toRFD-50, "CONSULT-II SETTING PROCE-
DURE".
2. With engine at idle, touch “SELF-DIAG RESULTS”.
Display shows malfunction experienced since the last erasing
operation.
NOTE:
lThe details for “TIME” are as follow:
–“0”: Error currently detected with differential lock control
unit.
–Except for “0”: Error detected in the past and memorized
with differential lock control unit.
Detects frequency of driving after DTC occurs (frequency
of turning ignition switch “ON/OFF”).
Display Item List
BCIA0029E
BCIA0030E
SDIA2547E
Items (CONSULT-II screen
terms)Diagnostic item is detected when... Check item
*INITIAL START*
[P1833]Due to removal of battery which cuts off power supply to differential
control unit, self-diagnosis memory function is suspended.RFD-54, "
Power Supply Circuit
For Differential Lock Control
Unit"
CONTROL UNIT 1
[P1834]Malfunction is detected in the memory (RAM) system of differential
lock control unit.RFD-56, "Differential Lock Con-
trol Unit"
CONTROL UNIT 2
[P1835]Malfunction is detected in the memory (ROM) system of differential
lock control unit.RFD-56, "Differential Lock Con-
trol Unit"
CONTROL UNIT 3
[P1836]Malfunction is detected in the memory (EEPROM) system of differ-
ential lock control unit.RFD-56, "Differential Lock Con-
trol Unit"
CONTROL UNIT 4
[P1837]AD converter system of differential lock control unit is malfunction-
ing.RFD-56, "Differential Lock Con-
trol Unit"
ON SW
[P1838]More than two switch inputs are simultaneously detected due to
short circuit of differential lock mode switch.RFD-56, "Differential Lock Mode
Switch"

Page 2755 of 3171

NISSAN NAVARA 2005 Repair Workshop Manual RFD-52
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
TROUBLE DIAGNOSIS
CAUTION:
If “CAN COMM CIRCUIT [U1000]” is displayed with other DTCs, first perform the trouble diagnosis for CAN communication
line.

Page 2756 of 3171

NISSAN NAVARA 2005 Repair Workshop Manual TROUBLE DIAGNOSIS
RFD-53
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
C
E
F
G
H
I
J
K
L
MA
B
RFD
DATA MONITOR MODE
Operation Procedure
1. Perform “CONSULT-II SETTING PROCEDURE”. Refer toRFD-50, "CONSULT

TROUBLE DIAGNOSIS
RFD-53
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
C
E
F
G
H
I
J
K
L
MA
B
RFD
DATA MONITOR MODE
Operation Procedure
1. Perform “CONSULT-II SETTING PROCEDURE”. Refer toRFD-50, "CONSULT-II SETTING PROCE-
DURE".
2. Touch “DATA MONITOR”.
3. Select from “SELECT MONITOR ITEM”, screen of data monitor mode is displayed.
NOTE:
When malfunction is detected, CONSULT-II performs REAL-TIME DIAGNOSIS.
Also, any malfunction detected while in this mode will be displayed at real time.
Display Item List
´: Standard –: Not applicable
Monitor item (Unit)SELECT MONITOR ITEM
Remarks
ECU INPUT
SIGNALSMAIN
SIGNALSSELECTION
FROM MENU
BATTERY VOLT [V]´´´Power supply voltage for differential lock
control unit.
4WD MODE [2H/4H/4Lo]´´´4WD shift switch signal status via CAN
communication line is displayed.
VHCL S/SEN-R [km/h] or [mph]´–´Wheel speed calculated by rear wheel
sensor right signal is displayed.
VHCL S/SEN-L [km/h] or [mph]´–´Wheel speed calculated by rear wheel
sensor left signal is displayed.
VHCL S/SEN-RL [km/h] or [mph]´´´Average value between wheel speed cal-
culated by rear wheel sensor right signal
and rear wheel sensor left signal is dis-
played.
D-LOCK SW SIG [ON/OFF]´´´Condition of differential lock mode switch
is displayed.
D-LOCK SIG [ON/OFF]´´´Control status of differential lock is dis-
played.
RELAY ON [ON/OFF]´´´Operating condition of differential lock
solenoid relay is displayed (integrated in
differential lock control unit).
RELAY MTR [ON/OFF]´´´Control status of differential lock solenoid
relay is displayed (integrated in differential
lock control unit).
SOL MTR [ON/OFF]´´´Control status of differential lock solenoid
is displayed.
IND MTR [ON/OFF]´´´Control status of DIFF LOCK indicator
lamp is displayed.
D-LOCK POS SW [ON/OFF]´´´Condition of differential lock position switch
is displayed.
Voltage [V] – –´The value measured by the voltage probe
is displayed.
Frequency [Hz] – –´
The value measured by the pulse probe is
displayed. DUTY-HI (high) [%] – –´
DUTY-LOW (low) [%] – –´
PLS WIDTH-HI [msec] – –´
PLS WIDTH-LOW [msec] – –´

Page 2757 of 3171

NISSAN NAVARA 2005 Repair Workshop Manual RFD-54
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
TROUBLE DIAGNOSIS FOR SYSTEM
TROUBLE DIAGNOSIS FOR SYSTEM
PFP:00000
Power Supply Circuit For Differential Lock Control UnitEDS003B1
CONSULT-II REFERENCE V

Page 2758 of 3171

NISSAN NAVARA 2005 Repair Workshop Manual TROUBLE DIAGNOSIS FOR SYSTEM
RFD-55
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
C
E
F
G
H
I
J
K
L
MA
B
RFD
DIAGNOSTIC PROCEDURE
1.CHECK POWER SUPPLY
1. Turn ignition switch “OFF”.
2. Disconnect differe

Page 2759 of 3171

NISSAN NAVARA 2005 Repair Workshop Manual RFD-56
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
TROUBLE DIAGNOSIS FOR SYSTEM
3.CHECK DIFFERENTIAL LOCK CONTROL UNIT
Check differential lock control unit input/output signal. Refer toRFD-48, "
Differenti

RFD-56
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
TROUBLE DIAGNOSIS FOR SYSTEM
3.CHECK DIFFERENTIAL LOCK CONTROL UNIT
Check differential lock control unit input/output signal. Refer toRFD-48, "
Differential Lock Control Unit Input/
Output Signal Reference Values".
OK or NG
OK >> GO TO 4.
NG >> Check differential lock control unit pin terminals for damage or loose connection with harness con-
nector. If any items are damaged, repair or replace damaged parts.
4.CHECK DTC
Perform the self-diagnosis, after driving the vehicle for a while.
OK or NG
OK >>INSPECTION END
NG >> Replace differential lock control unit. Refer toRFD-76, "
Removal and Installation".
Differential Lock Control UnitEDS003B2
DIAGNOSTIC PROCEDURE
1.PERFORM SELF-DIAGNOSIS
With CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “SELF-DIAG RESULTS” mode for “DIFF LOCK” 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
“CONTROL UNIT 1 [P1834]”,“CONTROL UNIT 2 [P1835]”,“CONTROL UNIT 3 [P1836]”or“CONTROL
UNIT 4 [P1837]”displayed?
YES >> Replace differential lock control unit. Refer toRFD-76, "Removal and Installation".
NO >>INSPECTION END
Differential Lock Mode SwitchEDS003B3
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
DIFFERENTIAL LOCK 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.
Monitor item [Unit] Content Condition Display value
D-LOCK SW SIG [ON/
OFF]Condition of differential
lock mode switchDifferential lock mode switch: ON ON
Differential lock mode switch: OFF OFF
Te r m i n a lWire
colorItem Condition Data (Approx.)
9YDifferential lock mode switch
(ON)Ignition switch: ONDifferential lock mode switch: ON Battery voltage
Differential lock mode switch: OFF 0V
22 GDifferential lock mode switch
(OFF)Ignition switch: ONDifferential lock mode switch: ON 0V
Differential lock mode switch: OFF Battery voltage

Page 2760 of 3171

NISSAN NAVARA 2005 Repair Workshop Manual TROUBLE DIAGNOSIS FOR SYSTEM
RFD-57
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
C
E
F
G
H
I
J
K
L
MA
B
RFD
DIAGNOSTIC PROCEDURE
1.CHECK DIFFERENTIAL LOCK MODE SWITCH SIGNAL
With CONSULT-II
1. Start engine.

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