2005 NISSAN NAVARA relay

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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PFP:284B7
System DescriptionEKS00PA8
lIPDM E/R (Intelligent Power Distribution Module Engine Room) integrates the relay box and fuse block
which were originally placed in engine compartment. It controls integrated relays via IPDM E/R control cir-
cuits.
lIPDM E/R-integrated control circuits perform ON-OFF operation of relays, CAN communication control,
etc.
lIt controls operation of each electrical component via ECM, BCM and CAN communication lines.
CAUTION:
None of the IPDM E/R integrated relays can be removed.
SYSTEMS CONTROLLED BY IPDM E/R
IPDM E/R receives a request signal from each Control unit with CAN communication. It controls each system.
CAN COMMUNICATION LINE CONTROL
With CAN communication, by connecting each control unit using two communication lines (CAN L-line, CAN
H-line), it is possible to transmit a maximum amount of information with minimum wiring. Each control unit can
transmit and receive data, and reads necessary information only.
1. Fail-safe control
lWhen CAN communication with other control units is impossible, IPDM E/R performs fail-safe control.
After CAN communication returns to normal operation, it also returns to normal control.
lOperation of control parts by IPDM E/R during fail-safe mode is as follows:
Control system Transmit control unit Control part
Lamp control BCM
lHead lamps (HI, LO)
lTail lamps, parking and license plate lamps
lFront fog lamps
Wiper control BCM Front wipers
Rear window defogger control BCM Rear window defogger
A/C compressor control ECM A/C compressor
Starter control TCM Starter motor
Cooling fan control ECM Cooling fan
Controlled system Fail-safe mode
Headlamps
lWith the ignition switch ON, the headlamp low is ON.
lWith the ignition switch OFF, the headlamp low is OFF.
Tail, parking and license plate lamps
lWith the ignition switch ON, the tail lamp is ON.
lWith the ignition switch OFF, the tail lamp is OFF.
Cooling fan
lWith the ignition switch ON, the cooling fan HI operates.
lWith the ignition switch OFF, the cooling fan stops.
Front wipersUntil the ignition switch is turned off, the front wiper LO and HI remains in the same status it
was in just before fail-safe control was initiated.
Rear window defogger Rear window defogger OFF
A/C compressor A/C compressor OFF
Front fog lamps Front fog lamp OFF

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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IPDM E/R STATUS CONTROL
In order to save power, IPDM E/R switches status by itself based on each operating condition.
1. CAN communication status
lCAN communication is normally performed with other control units.
lIndividual unit control by IPDM E/R is normally performed.
lA status is changed into sleep transient status when receiving a sleep request signal from BCM while
all the systems controlled by IPDM E/R under suspension.
2. Sleep transient status
lProcess to stop CAN communication is activated.
lAll systems controlled by IPDM E/R are stopped. When 3 second has elapsed after CAN communica-
tion with other control units is stopped, status switches to sleep status.
3. Sleep status
lIPDM E/R operates in low power mode.
lCAN communication is stopped.
lWhen a change in CAN communication signal is detected, status switches to CAN communication sta-
tus.
lWhen a change in ignition switch signal is detected, status switches to CAN communication status.
CAN Communication System DescriptionEKS00PA9
Refer toLAN-23, "CAN COMMUNICATION".
Function of Detecting Ignition Relay MalfunctionEKS00PAA
lWhen the integrated ignition relay is stuck in a “closed contact” position and cannot be turned OFF, IPDM
E/R turns ON tail and parking lamps for 10 minutes to indicate IPDM E/R malfunction.
lWhen the state of the integrated ignition relay does not agree with the state of the ignition switch signal
received with CAN communication, the IPDM E/R activates the tail lamp relay.
NOTE:
When the ignition switch is turned ON, the tail lamps are OFF.
Ignition switch signal Ignition relay status Tail lamp relay
ON ON —
OFF OFF —
ON OFF —
OFF ON ON (10 minutes)

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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)
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Diagnosis chart in auto active test mode
Symptom Inspection contents Possible cause
Any of front wipers, tail
and parking lamps, front
fog lamps, and
headlamps (HI, LO) do
not operate.Perform auto active
test. Does system in
question operate?YES
lBCM signal input system malfunction
NO
lLamp/wiper motor malfunction
lLamp/wiper motor ground circuit malfunction
lHarness/connector malfunction between IPDM E/R and system in
question
lIPDM E/R (integrated relay) malfunction
Rear window defogger
does not operate.Perform auto active
test. Does rear win-
dow defogger oper-
ate?YES
lBCM signal input circuit malfunction
NO
lRear window defogger relay malfunction
lOpen circuit of rear window defogger
lHarness or connector malfunction between IPDM E/R and rear window
defogger
lIPDM E/R (integrated relay) malfunction
A/C compressor does
not operate.Perform auto active
test. Does magnetic
clutch operate?YES
lBCM signal input circuit malfunction
lCAN communication signal malfunction between BCM and ECM
lCAN communication signal malfunction between ECM and IPDM E/R
NO
lMagnetic clutch malfunction
lHarness/connector malfunction between IPDM E/R and magnetic
clutch
lIPDM E/R (integrated relay) malfunction
Cooling fan does not
operate.Perform auto active
test. Does cooling fan
operate?YES
lECM signal input circuit malfunction
lCAN communication signal malfunction between ECM and IPDM E/R
NO
lCooling fan motor malfunction
lHarness/connector malfunction between IPDM E/R and cooling fan
motor
lIPDM E/R (integrated relay) malfunction
Oil pressure warning
lamp does not operate.Perform auto active
test. Does oil pres-
sure warning lamp
blink?YES
lHarness/connector malfunction between IPDM E/R and oil pressure
switch
lOil pressure switch malfunction
lIPDM E/R malfunction
NO
lCAN communication signal malfunction between IPDM E/R and combi-
nation meter
lCombination meter malfunction

PG-38
HARNESS
HARNESS
PFP:24010
Harness LayoutEKS00LJ8
HOW TO READ HARNESS LAYOUT
The following Harness Layouts use a map style grid to help locate
connectors on the drawings:
lMain Harness
lEngine Room Harness
lEngine Control Harness
lChassis Harness
lBody Harness
lRoom Lamp Harness
lDoor Harness
To use the grid reference
1. Find the desired connector number on the connector list.
2. Find the grid reference.
3. On the drawing, find the crossing of the grid reference letter column and number row.
4. Find the connector number in the crossing zone.
5. Follow the line (if used) to the connector.
CONNECTOR SYMBOL
Main symbols of connector (in Harness Layout) are indicated below.
SEL252V
Connector typeWater proof type Standard type
Male Female Male Female
lCavity: Less than 4
lRelay connector
lCavity: From 5 to 8
lCavity: More than 9
lGround terminal etc.
—

PG-68
HARNESS
Wiring Diagram Codes (Cell Codes)
EKS00LJ9
Use the chart below to find out what each wiring diagram code stands for.
Refer to the wiring diagram code in the alphabetical index to find the location (page number) of each wiring
diagram.
Code Section Wiring Diagram Name
A/C,A ATC Auto Air Conditioner
A/C,M MTC Manual Air Conditioner
ABS BRC Anti-lock Brake System
APP1PW EC Accelerator Pedal Position Sensor 1 Power
APP2PW EC Accelerator Pedal Position Sensor 2 Power
APPS1 EC Accelerator Pedal Position Sensor 1
APPS2 EC Accelerator Pedal Position Sensor 2
APPS3 EC Accelerator Pedal Position Sensor
ASC/BS EC ASCD Brake Switch
ASC/SW EC ASCD Steering Switch
ASCBOF EC ASCD Brake Switch
ASCIND EC ASCD Indicator
AT/IND DI A/T Indicator Lamp
AUDIO AV Audio
AUTO/L LT Auto Lignt System
BACK/L LT Back-up Lamp
BOOST EC Turbocharger Boost Sensor
CAN AT CAN Communication Line
CAN EC CAN Communication Line
CAN LAN CAN System
CHARGE SC Charging System
CHIME DI Warning Chime
CIGER WW Cigarette Lighter
CKPS EC Crankshaft Position Sensor
CMPS EC Camshaft Position Sensor
COMBSW LT Combination Switch
COMM AV Audio Visual Communication Line
COMPAS DI Compass
COOL/F EC Cooling Fan Control
D/LOCK BL Power Door Lock
DIFLOC RFD Rear Final Drive
DEF GW Rear Window Defogger
DTRL LT Headlamp — With Daytime Running Light System
ECMRLY EC ECM Relay
ECTS EC Engine Coolant Temperature Sensor
EGRVLV EC EGR Volume Control System
EMNT EC Electronic Controlled Engine Mount Control Solenoid Valve
F/FOG LT Front Fog Lamp
F/PUMP EC Fuel Pump
FRPS EC Fuel Rail Pressure Sensor
FTS AT A/T Fluid Temperature Sensor

STANDARDIZED RELAY
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STANDARDIZED RELAYPFP:25230
DescriptionEKS00LJG
NORMAL OPEN, NORMAL CLOSED AND MIXED TYPE RELAYS
Relays can mainly be divided into three types: normal open, normal closed and mixed type relays.
TYPE OF STANDARDIZED RELAYS
SEL881H
SEL882H
1M 1 Make 2M 2 Make
1T 1 Transfer 1M·1B 1 Make 1 Break