
PG-18
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
5. Touch “RECORD” while monitoring to record the status of the item being monitored. To stop recording,
touch “STOP”.
All Signals, Main Signals, Selection From Menu
NOTE:
Perform monitoring of IPDM E/R data with the ignition switch ON. When the ignition switch is in ACC position,
display may not be correct.
CAN DIAG SUPPORT MNTR
Refer toLAN-15, "CAN Diagnostic Support Monitor".
ACTIVE TEST
Operation Procedure
1. Touch “ACTIVE TEST” on “SELECT DIAG-MODE” screen.
2. Touch item to be tested, and check operation.
3. Touch “START”.
4. Touch “STOP” while testing to stop the operation.
Item nameCONSULT-II
screen displayDisplay or unitMonitor item selection
Description
ALL
SIGNALSMAIN
SIGNALSSELECTION
FROM MENU
Motor fan requestMOTOR FAN
REQ1/2/3/4 X X X Signal status input from ECM
A/C compressor
requestAC COMP REQ ON/OFF X X X Signal status input from ECM
Tail & clear
requestTAIL & CLR REQ ON/OFF X X X Signal status input from BCM
Headlamp LO
requestHL LO REQ ON/OFF X X X Signal status input from BCM
Headlamp HI
requestHL HI REQ ON/OFF X X X Signal status input from BCM
Front fog lamp
requestFR FOG REQ ON/OFF X X X Signal status input from BCM
Headlamp washer
requestHL WASHER
REQON/OFF X X Signal from input from BCM
Front wiper
requestFR WIP REQSTOP/1LOW/
LOW/HIX X X Signal status input from BCM
Wiper auto stopWIP AUTO
STOPACT P/STOP P X X X Output status of IPDM E/R
Wiper protection WIP PROT OFF/BLOCK X X X Control status of IPDM E/R
Starter request ST RLY REQ ON/OFF X X
Status of input signal
NOTE
Ignition relay
statusIGN RLY ON/OFF X X XIgnition relay status monitored
with IPDM E/R
Rear defogger
requestRR DEF REQ ON/OFF X X X Signal status input from BCM
Oil pressure
switchOIL P SW OPEN/CLOSE X XSignal status input from IPDM
E/R
Hood switch HOOD SW OFF XSignal status input from IPDM
E/R (function is not enabled)
Theft warning
horn requestTHFT HRN REQ ON/OFF X X Signal status input from BCM
Horn chirp HORN CHIRP ON/OFF X X Output status of IPDM E/R

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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Auto Active TestEKS00PAC
DESCRIPTION
lIn auto active test mode, operation inspection can be performed when IPDM E/R sends a drive signal to
the following systems:
–Rear window defogger
–Front wiper
–Tail lamps, front fog lamps, parking lamps and license plate lamps
–Headlamps (HI, LO)
–A/C compressor (magnetic clutch)
–Cooling fan
–Oil pressure warning lamp
OPERATION PROCEDURE
1. Close hood and front door passenger side, and then lift wiper arms away from windshield (to prevent
glass damage by wiper operation).
NOTE:
When auto active test is performed with hood opened, sprinkle water on windshield beforehand.
2. Turn ignition switch OFF.
3. Turn ignition switch ON and, within 20 seconds, press driver's door switch 10 times (close other doors).
Then turn ignition switch OFF.
4. Turn ignition switch ON within 10 seconds after ignition switch OFF.
5. When auto active test mode is actuated, oil pressure warning lamp starts blinking.
6. After a series of operations is repeated three times, auto active test is completed.
NOTE:
When auto active test mode has to be cancelled halfway, turn ignition switch OFF.
CAUTION:
Be sure to performBL-39, "
Check Door Switch"when the auto active test cannot be performed.
Test name CONSULT-II screen display Description
Rear defogger output REAR DEFOGGERWith a certain ON-OFF operation, the rear defogger relay can be oper-
ated.
Front wiper (HI, LO) output FRONT WIPERWith a certain operation (OFF, HI ON, LO ON), the front wiper relay
(Lo, Hi) can be operated.
Cooling fan output MOTOR FAN With a certain operation (1, 2, 3, 4), the cooling fan can be operated.
Lamp (HI, LO, TAIL, FOG)
outputEXTERNAL LAMPSWith a certain operation (OFF, HI ON, LO ON, TAIL ON, FOG ON), the
lamp relay (Low, High, Tail, Fog) can be operated.
Horn output HORN With a certain ON-OFF operation, the horn relay can be operated.

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PG-25
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Inspection with CONSULT-II (Self-Diagnosis)EKS00PAG
CAUTION:
If a CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on which control unit(s) carry out CAN communication.
1.SELF-DIAGNOSIS RESULT CHECK
1. Connect CONSULT-II and select “IPDM E/R” on “SELECT SYSTEM” screen.
2. Select “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.
3. Check display content in self-diagnosis results.
NOTE:
The details for display for the period are as follows:
lCRNT: Error currently detected by IPDM E/R.
lPAST: Error detected in the past and stored in IPDM E/R memory.
Contents displayed
NO DTC DETECTED. FURTHER TESTING MAY BE REQUIRED.>> INSPECTION END
CAN COMM CIRC>> Print out the self-diagnosis result and refer toLAN-23, "
CAN COMMUNICATION".
CONSULT-II DisplayCONSULT-II
display codeTIME
Details of diagnosis result
CRNT PAST
NO DTC IS DETECTED.
FURTHER TESTING MAY BE REQUIRED.— — — No malfunction
CAN COMM CIRC U1000 X XAny of items listed below have errors:
lTRANSMIT DIAG
lECM
lBCM/SEC
![NISSAN NAVARA 2005 Repair Workshop Manual RFD-48
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
TROUBLE DIAGNOSIS
Trouble Diagnosis Chart for Symptoms
EDS003AY
If DIFF LOCK indicator lamp does not turn ON after engine start, perform self-diagnosis. R NISSAN NAVARA 2005 Repair Workshop Manual RFD-48
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
TROUBLE DIAGNOSIS
Trouble Diagnosis Chart for Symptoms
EDS003AY
If DIFF LOCK indicator lamp does not turn ON after engine start, perform self-diagnosis. R](/manual-img/5/57362/w960_57362-2750.png)
RFD-48
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
TROUBLE DIAGNOSIS
Trouble Diagnosis Chart for Symptoms
EDS003AY
If DIFF LOCK indicator lamp does not turn ON after engine start, perform self-diagnosis. Refer toRFD-51, "SELF-DIAG RESULTSMODE".
Differential Lock Control Unit Input/Output Signal Reference ValuesEDS003AZ
DIFFERENTIAL LOCK CONTROL UNIT INSPECTION TABLE
Specifications with CONSULT-II
Symptom Condition Check itemReference
page
DIFF LOCK indicator lamp does not turn ON.
(DIFF LOCK indicator lamp check)Ignition switch: ONCAN communication line
RFD-70
Power supply and ground for differential
lock control unit
Combination meter
DIFF LOCK indicator lamp does not change.
lEngine running
lDifferential lock mode
switch: ONCombination meter
RFD-73Differential lock mode switch
CAN communication line
DIFF LOCK indicator lamp sometimes flashes.
lEngine running
lDifferential lock mode
switch: ONCombination meter
RFD-74Differential lock mode switch
Differential lock position switch
Differential inner parts
Monitor item [Unit] Content Condition Display value
BATTERY VOLT [V]Power supply voltage for
differential lock control unitIgnition switch: ON Battery voltage
4WD MODE [2H/4H/
4Lo]Condition of 4WD shift
switch4WD shift switch
(Engine running)2WD 2H
4H 4H
4LO 4Lo
VHCL S/SEN-R [km/h]
or [mph]Wheel speed
(Rear wheel right)Vehicle stopped 0 km/h (0 mph)
Vehicle running
CAUTION:
Check air pressure of tire under standard condition.Approximately
equal to the indi-
cation on speed-
ometer (Inside of
±10%)
VHCL S/SEN-L [km/h] or
[mph]Wheel speed
(Rear wheel left)Vehicle stopped 0 km/h (0 mph)
Vehicle running
CAUTION:
Check air pressure of tire under standard condition.Approximately
equal to the indi-
cation on speed-
ometer (Inside of
±10%)
VHCL S/SEN-RL [km/h]
or [mph]Wheel speed
(Average value of rear
wheel right and left)Vehicle stopped 0 km/h (0 mph)
Vehicle running
CAUTION:
Check air pressure of tire under standard condition.Approximately
equal to the indi-
cation on speed-
ometer (Inside of
±10%)
D-LOCK SW SIG [ON/
OFF]Condition of differential
lock mode switchDifferential lock mode switch: ON ON
Differential lock mode switch: OFF OFF
D-LOCK SIG [ON/OFF]Control status of differen-
tial lock
lVehicle stopped
lEngine running
l4WD shift switch: 4LODifferential lock mode
switch: ONON
Differential lock mode
switch: OFFOFF
![NISSAN NAVARA 2005 Repair Workshop Manual TROUBLE DIAGNOSIS
RFD-49
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
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Specifications Between Differential Lock Control Unit Terminals
DIFFERENTIAL LOCK CONTROL UNIT TERMINAL CONNE NISSAN NAVARA 2005 Repair Workshop Manual TROUBLE DIAGNOSIS
RFD-49
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Specifications Between Differential Lock Control Unit Terminals
DIFFERENTIAL LOCK CONTROL UNIT TERMINAL CONNE](/manual-img/5/57362/w960_57362-2751.png)
TROUBLE DIAGNOSIS
RFD-49
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
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Specifications Between Differential Lock Control Unit Terminals
DIFFERENTIAL LOCK CONTROL UNIT TERMINAL CONNECTOR LAYOUT
Data are reference value and are measured between each terminal and ground.RELAY ON [ON/OFF]Operating condition of dif-
ferential lock solenoid
relay (integrated in differ-
ential lock control unit)
lVehicle stopped
lEngine running
l4WD shift switch: 4LODifferential lock mode
switch: ONON
Differential lock mode
switch: OFFOFF
RELAY MTR [ON/OFF]Control status of differen-
tial lock solenoid relay
(integrated in differential
lock control unit)
lVehicle stopped
lEngine running
l4WD shift switch: 4LODifferential lock mode
switch: ONON
Differential lock mode
switch: OFFOFF
SOL MTR [ON/OFF]Control status of differen-
tial lock solenoid
lVehicle stopped
lEngine running
l4WD shift switch: 4LODifferential lock mode
switch: ONON
Differential lock mode
switch: OFFOFF
IND MTR [ON/OFF]Control status of DIFF
LOCK indicator lampDIFF LOCK indicator lamp: ON ON
DIFF LOCK indicator lamp: OFF OFF
D-LOCK POS SW [ON/
OFF]Condition of differential
lock position switch
lVehicle stopped
lEngine running
l4WD shift switch: 4LODifferential lock mode
switch: ON
(DIFF LOCK indicator
lamp: ON)ON
Differential lock mode
switch: OFF
(DIFF LOCK indicator
lamp: OFF)OFF Monitor item [Unit] Content Condition Display value
SDIA2573E
TerminalWire
colorItem Condition Data (Approx.)
1 O Power supplyIgnition switch: ON Battery voltage
Ignition switch: OFF 0V
2 O Power supplyIgnition switch: ON Battery voltage
Ignition switch: OFF 0V
3 B Ground Always 0V
4 P CAN-L – –
5 L CAN-H – –
9YDifferential lock mode switch
(ON)Ignition switch: ONDifferential lock mode switch: ON Battery voltage
Differential lock mode switch: OFF 0V
10 B Ground Always 0V
![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- 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-](/manual-img/5/57362/w960_57362-2752.png)
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
![NISSAN NAVARA 2005 Repair Workshop Manual TROUBLE DIAGNOSIS
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4. Touch “START (NISSAN BASED VHCL)”.
5. Touch “DIFF LOCK”.
If “DIFF LOCK” is not indicated, go t NISSAN NAVARA 2005 Repair Workshop Manual TROUBLE DIAGNOSIS
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4. Touch “START (NISSAN BASED VHCL)”.
5. Touch “DIFF LOCK”.
If “DIFF LOCK” is not indicated, go t](/manual-img/5/57362/w960_57362-2753.png)
TROUBLE DIAGNOSIS
RFD-51
[WITH ELECTRONIC LOCKING DIFFERENTIAL]
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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"
![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. 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.](/manual-img/5/57362/w960_57362-2754.png)
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.
How to Erase Self-diagnostic Results
1. Perform applicable inspection of malfunctioning item and then repair or replace.
2. Start engine and select “SELF-DIAG RESULTS” mode for “DIFF LOCK” with CONSULT-II.
3. Touch “ERASE” on CONSULT-II screen to erase DTC memory.
CAUTION:
If memory cannot be erased, perform diagnosis.
POSI SW ON
[P1839]When differential lock position switch is ON, rotation difference
occurs in wheel speed (rear wheel right and left).RFD-60, "Differential Lock Posi-
tion Switch"
RELAY
[P1844]Differential lock control unit detects as irregular by comparing target
value with monitor value.RFD-63, "Differential Lock Sole-
noid Relay",RFD-64, "Differen-
tial Lock Solenoid"
SOL CIRCUIT
[P1847]Malfunction is detected in differential lock control unit internal circuit.RFD-64, "Differential Lock Sole-
noid"
SOL DISCONNECT
[P1848]lDifferential lock solenoid internal circuit or harness is open.
lDifferential lock solenoid relay does not switch to ON position.RFD-64, "
Differential Lock Sole-
noid"
SOL SHORT
[P1849]Differential lock solenoid internal circuit or harness is shorted.RFD-64, "Differential Lock Sole-
noid"
SOL CURRENT
[P1850]Differential lock solenoid relay does not switch to OFF position.RFD-64, "Differential Lock Sole-
noid"
ABS SYSTEM
[C1203]Malfunction related to wheel sensor has been detected by ABS
actuator and electric unit (control unit).RFD-68, "ABS System"
CAN COMM CIRCUIT
[U1000]Malfunction has been detected from CAN communication line.RFD-69, "CAN Communication
Line"
NO DTC IS DETECTED.
FURTHER TESTING MAY
BE REQUIRED.No NG item has been detected. — Items (CONSULT-II screen
terms)Diagnostic item is detected when... Check item