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K ELECTRICAL

POWER SUPPLY, GROUND & CIRCUIT ELEMENTS
SECTION PG B

E
CONTENTS
PRECAUTIONS ......................................................... 3 . Terminals and Reference Values for IPDM E/R ..... 27 . F
Precautions for Supplemental Restraint System IPDM E/R Power/Ground Circuit Inspection .......... 29 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Inspection with CONSULT-II (Self-Diagnosis) ....... 31 .
SIONER" ................................................................. 3
. Removal and Installation of IPDM E/R .................. 32 . G
POWER SUPPLY ROUTING CIRCUIT ..................... 4 . REMOVAL .......................................................... 32
.
Schematic ............................................................... 4
. INSTALLATION .................................................. 32 .
Wiring Diagram -- POWER -- ................................ 6 . GROUND CIRCUIT .................................................. 33 .
H
BATTERY POWER SUPPLY -- IGNITION SW. Ground Distribution ................................................ 33
.
IN ANY POSITION ............................................... 6 . MAIN HARNESS ................................................ 33 .
ACCESSORY POWER SUPPLY -- IGNITION ENGINE ROOM HARNESS ............................... 36 .
SW. IN ACC OR ON ........................................... 12 . ENGINE CONTROL HARNESS ......................... 39 . I
IGNITION POWER SUPPLY -- IGNITION SW. BODY HARNESS ............................................... 40 .
IN ON ................................................................. 13
. BODY NO. 2 HARNESS .................................... 41 .
IGNITION POWER SUPPLY -- IGNITION SW. BACK DOOR NO. 2 AND BACK DOOR HAR- J
IN ON AND/OR START ...................................... 14 . NESS .................................................................. 42
.
IGNITION POWER SUPPLY -- IGNITION HARNESS ................................................................ 43
.
SWITCH IN START ............................................ 16 . Harness Layout ..................................................... 43
.
PG
Fuse ...................................................................... 17
. HOW TO READ HARNESS LAYOUT ................ 43 .
Fusible Link ........................................................... 17
. OUTLINE ............................................................ 44
.
Circuit Breaker (Built Into BCM) ............................ 17 . MAIN HARNESS ................................................ 45 .
IPDM E/R (INTELLIGENT POWER DISTRIBUTION ENGINE ROOM HARNESS (RH VIEW) ............ 48 . L
MODULE ENGINE ROOM) ..................................... 18 . ENGINE ROOM HARNESS (LH VIEW) ............. 52 .
System Description ............................................... 18 . ENGINE CONTROL HARNESS ......................... 54 .
SYSTEMS CONTROLLED BY IPDM E/R .......... 18 . CHASSIS HARNESS ......................................... 56 . M
CAN COMMUNICATION LINE CONTROL ........ 18 . BODY HARNESS ............................................... 58 .
IPDM E/R STATUS CONTROL .......................... 19 . BODY NO. 2 HARNESS .................................... 60 .
CAN Communication System Description ............. 19 . ROOM LAMP HARNESS ................................... 62 .
Function of Detecting Ignition Relay Malfunction ... 19 FRONT DOOR LH HARNESS ........................... 64 .
CONSULT-II Function (IPDM E/R) ........................ 20 . FRONT DOOR RH HARNESS ........................... 65 .
CONSULT-II START PROCEDURE ................... 20 . REAR DOOR LH HARNESS .............................. 66 .
SELF-DIAGNOSTIC RESULTS ......................... 20 . REAR DOOR RH HARNESS ............................. 67 .
DATA MONITOR ................................................ 21 . BACK DOOR HARNESS ................................... 68 .
CAN DIAG SUPPORT MNTR ............................ 21 . Wiring Diagram Codes (Cell Codes) ..................... 70 .
ACTIVE TEST .................................................... 21 . ELECTRICAL UNITS LOCATION ........................... 73 .
Auto Active Test .................................................... 23. Electrical Units Location ........................................ 73 .
DESCRIPTION ................................................... 23 . ENGINE COMPARTMENT ................................. 73 .
OPERATION PROCEDURE .............................. 23 . PASSENGER COMPARTMENT ........................ 74 .
INSPECTION IN AUTO ACTIVE TEST MODE ... 23 HARNESS CONNECTOR ........................................ 76 .
Schematic ............................................................. 25
. Description ............................................................. 76
.
IPDM E/R Terminal Arrangement .......................... 26 . HARNESS CONNECTOR (TAB-LOCKING

Revision: September 2006 PG-1 2007 Pathfinder
TYPE) ................................................................. 76
. MIXED TYPE RELAYS .......................................81 .
HARNESS CONNECTOR (SLIDE-LOCKING TYPE OF STANDARDIZED RELAYS .................81 .
TYPE) ................................................................. 77
. SUPER MULTIPLE JUNCTION (SMJ) .....................83 .
HARNESS CONNECTOR (LEVER LOCKING Terminal Arrangement ............................................83
.
TYPE) ................................................................. 78
. FUSE BLOCK-JUNCTION BOX (J/B) .....................85 .
HARNESS CONNECTOR (DIRECT-CONNECT Terminal Arrangement ............................................85
.
SRS COMPONENT TYPE) ................................ 79 . FUSE AND FUSIBLE LINK BOX .............................86 .
ELECTRICAL UNITS ............................................... 80 . Terminal Arrangement ............................................86
.
Terminal Arrangement ........................................... 80 . FUSE AND RELAY BOX ..........................................87.
STANDARDIZED RELAY ......................................... 81 . Terminal Arrangement ............................................87
.
Description ............................................................. 81
.
NORMAL OPEN, NORMAL CLOSED AND

Revision: September 2006 PG-2 2007 Pathfinder
PRECAUTIONS

PRECAUTIONS PFP:00011
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EKS00G8A

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along B
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front C
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING: D
G To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer. E
G Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section. F
G Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
G

Revision: September 2006 PG-3 2007 Pathfinder
POWER SUPPLY ROUTING CIRCUIT

POWER SUPPLY ROUTING CIRCUIT PFP:24110

Schematic EKS00G8C

For detailed ground distribution, refer to PG-33, "Ground Distribution" .

WKWA5488E

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POWER SUPPLY ROUTING CIRCUIT

WKWA5489E

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POWER SUPPLY ROUTING CIRCUIT

Wiring Diagram -- POWER -- EKS00G8D

BATTERY POWER SUPPLY -- IGNITION SW. IN ANY POSITION

WKWA5490E

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POWER SUPPLY ROUTING CIRCUIT

WKWA5491E

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POWER SUPPLY ROUTING CIRCUIT

WKWA5492E

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POWER SUPPLY ROUTING CIRCUIT

WKWA5493E

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POWER SUPPLY ROUTING CIRCUIT

WKWA5494E

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POWER SUPPLY ROUTING CIRCUIT

WKWA5495E

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POWER SUPPLY ROUTING CIRCUIT

ACCESSORY POWER SUPPLY -- IGNITION SW. IN ACC OR ON

WKWA5497E

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POWER SUPPLY ROUTING CIRCUIT

IGNITION POWER SUPPLY -- IGNITION SW. IN ON
A

WKWA4410E

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POWER SUPPLY ROUTING CIRCUIT

IGNITION POWER SUPPLY -- IGNITION SW. IN ON AND/OR START

WKWA4411E

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POWER SUPPLY ROUTING CIRCUIT

WKWA5496E

Revision: September 2006 PG-15 2007 Pathfinder
POWER SUPPLY ROUTING CIRCUIT

IGNITION POWER SUPPLY -- IGNITION SWITCH IN START

WKWA4413E

Revision: September 2006 PG-16 2007 Pathfinder
POWER SUPPLY ROUTING CIRCUIT

Fuse EKS00HM0

A
G If fuse is blown, be sure to eliminate cause of incident before
installing new fuse.
G Use fuse of specified rating. Never use fuse of more than speci-
fied rating. B
G Do not partially install fuse; always insert it into fuse holder prop-
erly.
C
G Remove fuse for "ELECTRICAL PARTS (BAT)" if vehicle is not
used for a long period of time.

D
CEL083

Fusible Link EKS00HM1

E
A melted fusible link can be detected either by visual inspection or by feeling with finger tip. If its condition is
questionable, use circuit tester or test lamp.
CAUTION:
G If fusible link should melt, it is possible that critical circuit (power supply or large current carrying F
circuit) is shorted. In such a case, carefully check and eliminate cause of incident.
G Never wrap outside of fusible link with vinyl tape.
G Never let fusible link touch any other wiring harness, vinyl or rubber parts. G

Circuit Breaker (Built Into BCM) EKS00HM2

For example, when current is 30A, the circuit is broken within 8 to 20 H
seconds.
A circuit breaker is used for the following systems:
G Power windows I
G Power sunroof

SBF284E PG

Revision: September 2006 PG-17 2007 Pathfinder
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PFP:284B7

System Description EKS00G8E

G IPDM 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.
G IPDM E/R-integrated control circuits perform ON-OFF operation of relays, CAN communication control,
etc.
G It 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
1. Lamp control
Using CAN communication lines, it receives signals from the BCM and controls the following lamps:
G Headlamps (High, Low)

G Daytime light relay control (Canada only)

G Parking lamps

G Tail and license plate lamps

G Front fog lamps

2. Wiper control
Using CAN communication lines, it receives signals from the BCM and controls the front wipers.
3. Daytime light relay control
Using CAN communication lines, it receives signals from the BCM and controls the daytime light relay.
4. Generator control
Using CAN communication lines, it receives signals from the ECM and controls power generation output.
5. Rear window defogger relay control
Using CAN communication lines, it receives signals from the BCM and controls the rear window defogger
relay.
6. A/C compressor control
Using CAN communication lines, it receives signals from the BCM and controls the A/C compressor
(magnet clutch).
7. Starter control
Using CAN communication lines, it receives signals from the BCM and controls the starter relay.
8. Cooling fan control
Using CAN communication lines, it receives signals from the ECM and controls the cooling fan relays.
9. Horn control
Using CAN communication lines, it receives signals from the BCM and controls the horn relay.
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
G When 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.
G Operation of control parts by IPDM E/R during fail-safe mode is as follows:

Controlled system Fail-safe mode
G With the ignition switch ON, the headlamp low is ON.
Headlamp
G With the ignition switch OFF, the headlamp low is OFF.
G With the ignition switch ON, the tail lamp relay is ON.
Tail, license plate and parking lamps
G With the ignition switch OFF, the tail lamp relay is OFF.

Revision: September 2006 PG-18 2007 Pathfinder
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

Controlled system Fail-safe mode
A
G With the ignition switch ON, the cooling fan HI operates.
Cooling fan
G With the ignition switch OFF, the cooling fan stops.
Until the ignition switch is turned off, the front wiper LO and HI remains in the same status it
Front wiper B
was in just before fail-safe control was initiated.
Rear window defogger Rear window defogger relay OFF
A/C compressor A/C compressor OFF C
Front fog lamps Front fog lamp relay OFF

IPDM E/R STATUS CONTROL
D
In order to save power, IPDM E/R switches status by itself based on each operating condition.
1. CAN communication status
G CAN communication is normally performed with other control units.
E
G Individual unit control by IPDM E/R is normally performed.

G When sleep request signal is received from BCM, mode is switched to sleep waiting status.

2. Sleep waiting status F
G Process to stop CAN communication is activated.

G All systems controlled by IPDM E/R are stopped. When 3 seconds have elapsed after CAN communi-
cation with other control units is stopped, mode switches to sleep status. G
3. Sleep status
G IPDM E/R operates in low current-consumption mode.

G CAN communication is stopped.
H
G When a change in CAN communication signal is detected, mode switches to CAN communication sta-
tus.
G When a change in ignition switch signal is detected, mode switches to CAN communication status.
I

CAN Communication System Description EKS00G8F

Refer to LAN-4, "SYSTEM DESCRIPTION" . J

Function of Detecting Ignition Relay Malfunction EKS00G8G

G When the integrated ignition relay is stuck in a "closed contact" position and cannot be turned OFF, IPDM PG
E/R turns ON tail and parking lamps for 10 minutes to indicate IPDM E/R malfunction.
G When the state of the integrated ignition relay does not agree with the state of the ignition switch signal
received via CAN communication, the IPDM E/R activates the tail lamp relay. L
Ignition switch signal Ignition relay status Tail lamp relay
ON ON --
M
OFF OFF --
ON OFF --
OFF ON ON (10 minutes)

NOTE:
When the ignition switch is turned ON, the tail lamps are OFF.

Revision: September 2006 PG-19 2007 Pathfinder
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

CONSULT-II Function (IPDM E/R) EKS00G8H

CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
IPDM E/R Diagnostic Mode Description
SELF-DIAG RESULTS Displays IPDM E/R self-diagnosis results.
DATA MONITOR Displays IPDM E/R input/output data in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.

CONSULT-II START PROCEDURE
Refer to GI-38, "CONSULT-II Start Procedure" .
SELF-DIAGNOSTIC RESULTS
Display Item List
CONSULT-II TIME Possible causes
Display items Malfunction detection
display code CRNT PAST
NO DTC IS
DETECTED. FURTHER
-- -- -- -- --
TESTING MAY BE
REQUIRED.
G If CAN communication reception/transmission Any of items listed
data has a malfunction, or if any of the control below have errors:
units fail, data reception/transmission cannot
CAN COMM CIRC U1000 X X G TRANSMIT DIAG
be confirmed.
G ECM
G When the data in CAN communication is not
received before the specified time. G BCM/SEC

NOTE:
The details for display of the period are as follows:
G CRNT: Error currently detected with IPDM E/R.
G PAST: Error detected in the past and placed in IPDM E/R memory.

Revision: September 2006 PG-20 2007 Pathfinder
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

DATA MONITOR
All Signals, Main Signals, Selection From Menu A
Monitor item selection
CONSULT-II
Item name Display or unit ALL MAIN SELECTION Description
screen display B
SIGNALS SIGNALS FROM MENU
MOTOR FAN
Motor fan request 1/2/3/4 X X X Signal status input from ECM
REQ
C
Compressor
AC COMP REQ ON/OFF X X X Signal status input from BCM
request
Parking, license
plate, and tail TAIL & CLR REQ ON/OFF X X X Signal status input from BCM D
lamp request
Headlamp low
HL LO REQ ON/OFF X X X Signal status input from BCM E
beam request
Headlamp high
HL HI REQ ON/OFF X X X Signal status input from BCM
beam request
Front fog lamps F
FR FOG REQ ON/OFF X X X Signal status input from BCM
request
Front wiper
FR WIP REQ STOP/1LO/LO/HI X X X Signal status input from BCM
request G
WIP AUTO
Wiper auto stop ACT P/STOP P X X X Output status of IPDM E/R
STOP
OFF/LS/HS/ H
Wiper protection WIP PROT X X X Control status of IPDM E/R
BLOCK
Starter request ST RLY REQ ON/OFF X X Signal status input from BCM
Ignition relay Ignition relay status monitored I
IGN RLY ON/OFF X X X
status with IPDM E/R
Rear defogger
RR DEF REQ ON/OFF X X X Signal status input from BCM
request J
Signal status input from IPDM
Hood switch HOOD SW (*1) OFF X
E/R
Theft warning PG
THFT HRN REQ ON/OFF X X Signal status input from BCM
horn request
Horn chirp HORN CHIRP ON/OFF X X Output status of IPDM E/R
Daytime lights L
DTRL REQ ON/OFF X X Signal status input from BCM
request

NOTE:
M
G Perform monitoring of IPDM E/R data with the ignition switch ON. When the ignition switch is in ACC posi-
tion, display may not be correct.
G (*1) This item is displayed, but does not function.
CAN DIAG SUPPORT MNTR
Refer to LAN-4, "SYSTEM DESCRIPTION" .
ACTIVE TEST
Display Item List
Test name CONSULT-II screen display Description
With a certain ON-OFF operation, the rear defogger relay can be oper-
Rear defogger output REAR DEFOGGER
ated.
With a certain operation (OFF, HI ON, LO ON), the front wiper relay
Front wiper (HI, LO) output FRONT WIPER
(Lo, Hi) can be operated.
Cooling fan output MOTOR FAN With a certain operation (1, 2, 3, 4), the cooling fan can be operated.

Revision: September 2006 PG-21 2007 Pathfinder
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

Test name CONSULT-II screen display Description
Headlamp relay (HIGH, With a certain operation (OFF, HI ON, LO ON, TAIL ON, FOG ON), the
EXTERNAL LAMPS
LOW) output lamp relay (Low, High, Tail, Fog) can be operated.
Front fog lamp relay (FOG) With a certain operation (OFF, HI ON, LO ON, TAIL ON, FOG ON), the
EXTERNAL LAMPS
output lamp relay (Low, High, Tail, Fog) can be operated.
With a certain operation (OFF, HI ON, LO ON, TAIL ON, FOG ON), the
Tail lamp relay output EXTERNAL LAMPS
lamp relay (Low, High, Tail, Fog) can be operated.
Horn output HORN With a certain ON-OFF operation, the horn relay can be operated.

Revision: September 2006 PG-22 2007 Pathfinder
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

Auto Active Test EKS00G8I

DESCRIPTION A
G In auto active test mode, operation inspection can be performed when IPDM E/R sends a drive signal to
the following systems:

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