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POWER SUPPLY, GROUND & CIRCUIT ELEMENTS
K ELECTRICAL
A
B
SECTION
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS C
D
E
CONTENTS
PRECAUTIONS ......................................................... 3 . Configuration ......................................................... 36
. F
Precautions for Supplemental Restraint System DESCRIPTION ................................................... 36 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- READ CONFIGURATION PROCEDURE ........... 36 .
SIONER" ................................................................. 3
. WRITE CONFIGURATION PROCEDURE ......... 38 . G
Maintenance Information ......................................... 3 . Auto Active Test ..................................................... 42
.
RHD MODELS ..................................................... 3 . DESCRIPTION ................................................... 42 .
LHD MODELS ...................................................... 3 . OPERATION PROCEDURE ............................... 42 .
H
POWER SUPPLY ROUTING ..................................... 4 . INSPECTION IN AUTO ACTIVE TEST MODE ... 43
Schematic ............................................................... 4
. CONCEPT OF AUTO ACTIVE TEST ................. 44 .
Wiring Diagram -- POWER -- ................................ 5 . Schematic .............................................................. 46
.
BATTERY POWER SUPPLY -- IGNITION SW. IPDM E/R Terminal Arrangement .......................... 47 . I
IN ANY POSITION ............................................... 5 . Inspection With CONSULT-II (Self-Diagnosis) ...... 48 .
ACCESSORY POWER SUPPLY -- IGNITION IPDM E/R Terminal Inspection ............................... 49 .
SW. IN "ACC" OR "ON" .......................................11 . IPDM E/R Power Supply and Ground Circuit Check 49 ... J
IGNITION POWER SUPPLY -- IGNITION SW. Diagnosis of IPDM E/R Integrated Relay .............. 51 .
IN "ON" AND/OR "START" ................................. 12 . Removal and Installation of IPDM E/R .................. 52 .
Fuse ...................................................................... 17
. REMOVAL .......................................................... 52 .
PG
Fusible Link ........................................................... 17
. INSTALLATION .................................................. 53 .
Circuit Breaker ...................................................... 17
. GROUND .................................................................. 54
.
IPDM E/R (INTELLIGENT POWER DISTRIBUTION Ground Distribution ................................................ 54 .
MODULE ENGINE ROOM) ..................................... 18 . MAIN HARNESS ................................................ 54 . L
System Description ............................................... 18 . ENGINE ROOM HARNESS ............................... 58 .
SYSTEMS CONTROLLED BY IPDM E/R .......... 18 . ENGINE CONTROL HARNESS/CR ENGINE
FAIL-SAFE FUNCTION ...................................... 19 . MODELS ............................................................ 61. M
IPDM E/R STATUS CONTROL .......................... 19 . ENGINE CONTROL HARNESS/K9K ENGINE
FUNCTION OF IPDM E/R .................................. 19 . MODELS ............................................................ 62.
CAN Communication ............................................. 20 . BODY HARNESS ............................................... 63 .
SYSTEM DESCRIPTION ................................... 20 . HARNESS ................................................................ 67
.
CAN Communication Unit ..................................... 20 . Harness Layout ..................................................... 67 .
TYPE 1/TYPE 2 ................................................. 21 . HOW TO READ HARNESS LAYOUTS .............. 67 .
TYPE 3/TYPE 4 ................................................. 24 . OUTLINE/CR ENGINE MODELS ....................... 68 .
TYPE 5/TYPE 6 ................................................. 26 . OUTLINE/K9K ENGINE MODELS ..................... 69 .
TYPE 7/TYPE 8 ................................................. 29 . MAIN HARNESS/LHD MODELS ........................ 70 .
TYPE 9/TYPE 10 ............................................... 31 . MAIN HARNESS/RHD MODELS ....................... 72 .
Function of Detecting Ignition Relay Malfunction ... 33 ENGINE ROOM HARNESS/CR ENGINE MOD-
CONSULT-II Function (IPDM E/R) ........................ 33 . ELS ..................................................................... 74
.
CONSULT-II BASIC OPERATION ...................... 33 . ENGINE ROOM HARNESS/K9K ENGINE MOD-
SELF-DIAG RESULTS ....................................... 34 . ELS ..................................................................... 76
.
DATA MONITOR ................................................ 35 . ENGINE CONTROL HARNESS/CR ENGINE
ACTIVE TEST .................................................... 36 . MODELS ............................................................ 78.
PG-1
ENGINE CONTROL HARNESS/K9K ENGINE HARNESS CONNECTOR ........................................99 .
MODELS ............................................................ 80. Description .............................................................99
.
BODY HARNESS ............................................... 82 . HARNESS CONNECTOR (TAB-LOCKING
ROOM LAMP HARNESS ................................... 85 . TYPE) .................................................................99
.
FRONT DOOR HARNESS LH SIDE/LHD MOD- HARNESS CONNECTOR (SLIDE-LOCKING
ELS ..................................................................... 86
. TYPE) ............................................................... 100
.
FRONT DOOR HARNESS LH SIDE/RHD MOD- JOINT CONNECTOR (J/C) .................................... 101 .
ELS ..................................................................... 87
. Terminal Arrangement .......................................... 101 .
FRONT DOOR HARNESS RH SIDE/LHD MOD- ELECTRICAL UNITS ............................................. 102 .
ELS ..................................................................... 88
. Terminal Arrangement .......................................... 102 .
FRONT DOOR HARNESS RH SIDE/RHD MOD- SMJ (SUPER MULTIPLE JUNCTION) ................... 103 .
ELS ..................................................................... 89
. Terminal Arrangement .......................................... 103 .
REAR DOOR HARNESS LH .............................. 90 . STANDARDIZED RELAY ....................................... 104 .
REAR DOOR HARNESS RH ............................. 91 . Description ........................................................... 104
.
Wiring Diagram Codes (Cell Codes) ...................... 92 . NORMAL OPEN, NORMAL CLOSED AND
ELECTRICAL UNITS LOCATION ............................ 95 . MIXED TYPE RELAYS ..................................... 104 .
Electrical Units Location ........................................ 95 . TYPE OF STANDARDIZED RELAYS ............... 104 .
ENGINE COMPARTMENT ................................. 95 . FUSE BLOCK - JUNCTION BOX (J/B) ................. 106 .
PASSENGER COMPARTMENT ......................... 97 . Terminal Arrangement .......................................... 106 .
FUSE AND FUSIBLE LINK BOX ........................... 107 .
Terminal Arrangement .......................................... 107 .
PG-2
PRECAUTIONS
PRECAUTIONS PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EKS008IN
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. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual. C
WARNING:
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. D
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. E
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. F
Maintenance Information EKS008IP
If any of following part is replaced, always replace with new* one. G
If it's not (or fail to do so), the electrical system may not be operated properly.
*: New one means a virgin control unit that has never been energized on-board.
RHD MODELS H
q BCM (Models without Intelligent Key system)
q Intelligent Key unit (Models with Intelligent Key system)
q ECM I
q IPDM E/R
q Combination meter
J
q EPS control unit
LHD MODELS
q BCM (Models without Intelligent Key system) PG
q Intelligent Key unit (Models with Intelligent Key system)
q ECM
L
M
PG-3
POWER SUPPLY ROUTING
POWER SUPPLY ROUTING SMA for VIN >SJN**AK12U1288860 PFP:00011
Schematic SMA for VIN >SJN**AK12U1309269 EKS00795
MKWA1838E
PG-4
POWER SUPPLY ROUTING
Wiring Diagram -- POWER -- EKS00796
BATTERY POWER SUPPLY -- IGNITION SW. IN ANY POSITION A
SMA for VIN >SJN**AK12U1288860 SMA for VIN >SJN**AK12U1309269
B
C
D
E
F
G
H
I
J
PG
L
M
MKWA1839E
PG-5
POWER SUPPLY ROUTING
MKWA1840E
PG-6
POWER SUPPLY ROUTING
A
B
C
D
E
F
G
H
I
J
PG
L
M
MKWA1841E
PG-7
POWER SUPPLY ROUTING
MKWA1506E
PG-8
POWER SUPPLY ROUTING
A
B
C
D
E
F
G
H
I
J
PG
L
M
MKWA1507E
PG-9
POWER SUPPLY ROUTING
MKWA3239E
PG-10
POWER SUPPLY ROUTING
ACCESSORY POWER SUPPLY -- IGNITION SW. IN "ACC" OR "ON"
A
B
SMA for VIN
>SJN**AK12U1288860 C
SMA for VIN
>SJN**AK12U1309269 D
E
F
G
H
I
J
PG
L
M
MKWA1508E
PG-11
POWER SUPPLY ROUTING
IGNITION POWER SUPPLY -- IGNITION SW. IN "ON" AND/OR "START"
SMA for VIN >SJN**AK12U1309269
SMA for VIN >SJN**AK12U1288860
MKWA1843E
PG-12
POWER SUPPLY ROUTING
A
B
C
D
E
F
G
H
I
J
PG
L
M
MKWA1510E
PG-13
POWER SUPPLY ROUTING
MKWA1511E
PG-14
POWER SUPPLY ROUTING
A
B
C
D
E
F
G
H
I
J
PG
L
M
MKWA1844E
PG-15
POWER SUPPLY ROUTING
MKWA1513E
PG-16
POWER SUPPLY ROUTING
Fuse EKS00797
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 EKS00798
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: F
q If fusible link should melt, it is possible that critical circuit
(power supply or large current carrying circuit) is shorted.
In such a case, carefully check and eliminate cause of inci- G
dent.
q Never wrap outside of fusible link with vinyl tape. Important:
Never let fusible link touch any other wiring harness, vinyl H
or rubber parts. CKWA0098E
Circuit Breaker EKS00799
The PTC thermistor generates heat in response to current flow. The I
temperature (and resistance) of the thermistor element varies with
current flow. Excessive current flow will cause the element's temper-
ature to rise. When the temperature reaches a specified level, the J
electrical resistance will rise sharply to control the circuit current.
Reduced current flow will cause the element to cool. Resistance falls
accordingly and normal circuit current flow is allowed to resume.
PG
L
SEL109W
M
PG-17
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PFP:284B7
System Description EKS0080P
q IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) integrates the relay box
and the fuse box which has been conventionally placed in the engine room. It controls the built-in relay
with the control circuit in IPDM E/R.
q IPDM E/R integrated control circuit performs ON-OFF control of the relay and transmission of various sig-
nals (oil pressure switch, park/neutral position switch, reverse switch) through CAN communication with
BCM and ECM.
NOTE:
All IPDM E/R integrated relays can never be removed.
SYSTEMS CONTROLLED BY IPDM E/R
1. Lamp control
Using the CAN communication line, it receives signals from BCM and controls following lamps:
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