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K ELECTRICAL

B
SECTION
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS C

E
CONTENTS
PRECAUTIONS ......................................................... 3 . Inspection with CONSULT-II (Self-Diagnosis) ....... 29 . F
Precautions for Supplemental Restraint System Removal and Installation of IPDM E/R .................. 30 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- REMOVAL .......................................................... 30
.
SIONER" ................................................................. 3
. INSTALLATION .................................................. 30 . G
POWER SUPPLY ROUTING CIRCUIT ..................... 4 . GROUND CIRCUIT .................................................. 31 .
Schematic ............................................................... 4
. Ground Distribution ................................................ 31
.
Wiring Diagram -- POWER -- ................................ 6 . MAIN HARNESS ................................................ 31 .
H
BATTERY POWER SUPPLY -- IGNITION SW. ENGINE ROOM HARNESS ............................... 34 .
IN ANY POSITION ............................................... 6 . ENGINE CONTROL HARNESS ......................... 37 .
ACCESSORY POWER SUPPLY -- IGNITION BODY HARNESS ............................................... 38 .
SW. IN ACC OR ON ............................................11 . BODY NO. 2 HARNESS .................................... 39 . I
IGNITION POWER SUPPLY -- IGNITION SW. BACK DOOR NO. 2 RH HARNESS ................... 40 .
IN ON ................................................................. 12
. HARNESS ................................................................ 41
.
IGNITION POWER SUPPLY -- IGNITION SW. Harness Layout ..................................................... 41
. J
IN ON AND/OR START ...................................... 13 . HOW TO READ HARNESS LAYOUT ................ 41 .
Fuse ...................................................................... 17
. OUTLINE ............................................................ 42
.
Fusible Link ........................................................... 17
. MAIN HARNESS ................................................ 43 . PG
Circuit Breaker (Built Into BCM) ............................ 17 . ENGINE ROOM HARNESS (LH VIEW) ............. 45 .
IPDM E/R (INTELLIGENT POWER DISTRIBUTION ENGINE ROOM HARNESS (RH VIEW) ............ 48 .
MODULE ENGINE ROOM) ..................................... 18 . ENGINE CONTROL HARNESS ......................... 50 .
System Description ............................................... 18 . CHASSIS HARNESS ......................................... 52 . L
SYSTEMS CONTROLLED BY IPDM E/R .......... 18 . BODY HARNESS ............................................... 54 .
CAN COMMUNICATION LINE CONTROL ........ 18 . BODY NO. 2 HARNESS .................................... 56 .
IPDM E/R STATUS CONTROL .......................... 19 . ROOM LAMP HARNESS ................................... 58 . M
CAN Communication System Description ............. 19 . FRONT DOOR LH HARNESS ........................... 59 .
Function of Detecting Ignition Relay Malfunction ... 19 FRONT DOOR RH HARNESS ........................... 59 .
CONSULT-II Function (IPDM E/R) ........................ 20 . REAR DOOR LH HARNESS .............................. 60 .
CONSULT-II START PROCEDURE ................... 20 . REAR DOOR RH HARNESS ............................. 60 .
SELF-DIAGNOSTIC RESULTS ......................... 20 . BACK DOOR HARNESS ................................... 61 .
DATA MONITOR ................................................ 21 . Wiring Diagram Codes (Cell Codes) ..................... 62 .
CAN DIAG SUPPORT MNTR ............................ 21 . ELECTRICAL UNITS LOCATION ........................... 65 .
ACTIVE TEST .................................................... 21 . Electrical Units Location ........................................ 65 .
Auto Active Test .................................................... 22. ENGINE COMPARTMENT ................................. 65 .
DESCRIPTION ................................................... 22 . PASSENGER COMPARTMENT ........................ 66 .
OPERATION PROCEDURE .............................. 22 . HARNESS CONNECTOR ........................................ 68 .
INSPECTION IN AUTO ACTIVE TEST MODE ... 22 Description ............................................................. 68
.
Terminals and Reference Values for IPDM E/R .... 24 . HARNESS CONNECTOR (TAB-LOCKING
IPDM E/R Terminal Arrangement .......................... 27 . TYPE) ................................................................. 68
.
IPDM E/R Power/Ground Circuit Inspection ......... 28 . HARNESS CONNECTOR (SLIDE-LOCKING

Revision: August 2006 PG-1 2007 Armada
TYPE) ................................................................. 69
. SUPER MULTIPLE JUNCTION (SMJ) .....................74 .
HARNESS CONNECTOR (DIRECT-CONNECT Terminal Arrangement ............................................74
.
SRS COMPONENT TYPE) ................................ 70 . FUSE BLOCK-JUNCTION BOX (J/B) .....................76 .
ELECTRICAL UNITS ............................................... 71 . Terminal Arrangement ............................................76
.
Terminal Arrangement ........................................... 71 . FUSE AND FUSIBLE LINK BOX .............................77 .
STANDARDIZED RELAY ......................................... 72 . Terminal Arrangement ............................................77
.
Description ............................................................. 72
. FUSE AND RELAY BOX ..........................................78.
NORMAL OPEN, NORMAL CLOSED AND Terminal Arrangement ............................................78
.
MIXED TYPE RELAYS ....................................... 72 .
TYPE OF STANDARDIZED RELAYS ................. 72 .

Revision: August 2006 PG-2 2007 Armada
PRECAUTIONS

PRECAUTIONS PFP:00011
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EKS00J7Q

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
q 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
q 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
q 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: August 2006 PG-3 2007 Armada
POWER SUPPLY ROUTING CIRCUIT

POWER SUPPLY ROUTING CIRCUIT PFP:24110

Schematic EKS00J7R

For detailed ground distribution, refer to PG-31, "Ground Distribution" .

WKWA5484E

Revision: August 2006 PG-4 2007 Armada
POWER SUPPLY ROUTING CIRCUIT

WKWA5412E

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POWER SUPPLY ROUTING CIRCUIT

Wiring Diagram -- POWER -- EKS00J7S

BATTERY POWER SUPPLY -- IGNITION SW. IN ANY POSITION

WKWA3855E

Revision: August 2006 PG-6 2007 Armada
POWER SUPPLY ROUTING CIRCUIT

WKWA3856E

Revision: August 2006 PG-7 2007 Armada
POWER SUPPLY ROUTING CIRCUIT

WKWA3857E

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POWER SUPPLY ROUTING CIRCUIT

WKWA3858E

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POWER SUPPLY ROUTING CIRCUIT

WKWA5485E

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POWER SUPPLY ROUTING CIRCUIT

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

WKWA5413E

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POWER SUPPLY ROUTING CIRCUIT

IGNITION POWER SUPPLY -- IGNITION SW. IN ON

WKWA3861E

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POWER SUPPLY ROUTING CIRCUIT

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

WKWA3862E

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POWER SUPPLY ROUTING CIRCUIT

WKWA5486E

Revision: August 2006 PG-14 2007 Armada
POWER SUPPLY ROUTING CIRCUIT

WKWA5414E

Revision: August 2006 PG-15 2007 Armada
POWER SUPPLY ROUTING CIRCUIT

WKWA5487E

Revision: August 2006 PG-16 2007 Armada
POWER SUPPLY ROUTING CIRCUIT

Fuse EKS00J7T

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

D
CEL083

Fusible Link EKS00J7U

A melted fusible link can be detected either by visual inspection or by feeling with finger tip. If its condition is E
questionable, use circuit tester or test lamp.
CAUTION:
q 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.
q Never wrap outside of fusible link with vinyl tape.
q Never let fusible link touch any other wiring harness, vinyl or rubber parts. G

Circuit Breaker (Built Into BCM) EKS00J7V

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:
q Power windows I
q Power door locks
q Remote keyless entry system
q Power sunroof J
q Rear window wiper

SBF284E PG

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

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

System Description EKS00J7W

q 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.
q IPDM E/R-integrated control circuits perform ON-OFF operation of relays, CAN communication control,
etc.
q 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:
q Headlamps (Hi, Lo)

q Parking lamps

q Tail and license lamps

q Front fog lamps

2. Wiper control
Using CAN communication lines, it receives signals from the BCM and controls the front wipers.
3. Rear window defogger relay control
Using CAN communication lines, it receives signals from the BCM and controls the rear window defogger
relay.
4. A/C compressor control
Using CAN communication lines, it receives signals from the ECM and controls the A/C compressor
(magnetic clutch).
5. Starter control
Using CAN communication lines, it receives signals from the BCM and controls the starter relay.
6. Cooling fan control
Using CAN communication lines, it receives signals from the ECM and controls the cooling fan relays.
7. 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
q 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.
q Operation of control parts by IPDM E/R during fail-safe mode is as follows:

Controlled system Fail-safe mode
q With the ignition switch ON, the headlamp (low) is ON.
Headlamp
q With the ignition switch OFF, the headlamp (low) is OFF.
q With the ignition switch ON, the tail and parking lamps are ON.
Tail and parking lamps
q With the ignition switch OFF, the tail and parking lamps are OFF.
q With the ignition switch ON, the cooling fan HI operates.
Cooling fan
q 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
was in just before fail-safe control was initiated.
Rear window defogger Rear window defogger relay OFF

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

Controlled system Fail-safe mode
A
A/C compressor A/C compressor OFF
Front fog lamps Front fog lamp relay OFF

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

q When sleep request signal is received from BCM, mode is switched to sleep waiting status.
D
2. Sleep waiting status
q Process to stop CAN communication is activated.

q All systems controlled by IPDM E/R are stopped. When 1 second has elapsed after CAN communica- E
tion with other control units is stopped, mode switches to sleep status.
3. Sleep status
q IPDM E/R operates in low current-consumption mode. F
q CAN communication is stopped.

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

CAN Communication System Description EKS00J7X
H
Refer to LAN-4, "SYSTEM DESCRIPTION"LAN-4, "SYSTEM DESCRIPTION" .
Function of Detecting Ignition Relay Malfunction EKS00J7Y
I
q When 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.
q When the state of the integrated ignition relay does not agree with the state of the ignition switch signal
J
received via CAN communication, the IPDM E/R activates the tail lamp relay.
Ignition switch signal Ignition relay status Tail lamp relay
ON ON -- PG
OFF OFF --
ON OFF --
L
OFF ON ON (10 minutes)

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

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

CONSULT-II Function (IPDM E/R) EKS00J7Z

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. FUR-
THER TESTING -- -- -- -- --
MAY BE
REQUIRED.
q If CAN communication reception/transmis- Any of items listed
sion data has a malfunction, or if any of the below have errors:
control units fail, data reception/transmis-
CAN COMM CIRC U1000 X X q TRANSMIT DIAG
sion cannot be confirmed.
q ECM
q When the data in CAN communication is
not received before the specified time. q BCM/SEC

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

Revision: August 2006 PG-20 2007 Armada
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 ECM
request
Parking, license,
and tail lamp TAIL & CLR REQ ON/OFF X X X Signal status input from BCM D
request
Headlamp low
HL LO REQ ON/OFF X X X Signal status input from BCM
beam request E
Headlamp high
HL HI REQ ON/OFF X X X Signal status input from BCM
beam request
Front fog request FR FOG REQ ON/OFF X X X Signal status input from BCM F
Front wiper STOP/1LOW/
FR WIP REQ X X X Signal status input from BCM
request LOW/HI
WIP AUTO G
Wiper auto stop ACT P/STOP P X X X Output status of IPDM E/R
STOP
Wiper protection WIP PROT OFF/Block X X X Control status of IPDM E/R
H
Starter request ST RLY REQ ON/OFF X X Status of input signal NOTE
Ignition relay Ignition relay status monitored
IGN RLY ON/OFF X X X
status with IPDM E/R
I
Rear defogger
RR DEF REQ ON/OFF X X X Signal status input from BCM
request
Oil pressure Signal status input from IPDM J
OIL P SW (*1) OPEN/CLOSE X X
switch E/R
Signal status input from IPDM
Hood switch HOOD SW (*1) OFF X
E/R
PG
Theft warning
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
L
Daytime running
DTRL REQ ON/OFF X X Signal status input from BCM
lamp request

NOTE: M
q 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.
q (*1) This item is displayed, but does not function.
CAN DIAG SUPPORT MNTR
Refer to LAN-4, "SYSTEM DESCRIPTION" .
ACTIVE TEST
Operation Procedure
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: August 2006 PG-21 2007 Armada
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

Test name CONSULT-II screen display Description
Lamp (HI, LO, TAIL, 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.
Cornering lamp output CORNERING LAMP --
Horn output HORN With a certain ON-OFF operation, the horn relay can be operated.

Auto Active Test EKS00J80

DESCRIPTION
q 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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