Infiniti M45 (Y34). Manual — part 684

PG-1

POWER SUPPLY, GROUND & CIRCUIT ELEMENTS

K ELECTRICAL

CONTENTS

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D

E

F

G

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L

M

SECTION

PG

A

B

PG

POWER SUPPLY, GROUND & CIRCUIT ELEMENTS

POWER SUPPLY ROUTING . . . . . . . . . .. 2

Schematic . . . . . . . . . . . . . . . . 2
Wiring Diagram — POWER — . . . . . . . . . 3

BATTERY POWER SUPPLY— IGNITION SW. IN
ANY POSITION . . . . . . . . . . . . . . 3
ACCESSORY POWER SUPPLY — IGNITION
SW. IN “ACC” OR “ON” . . . . . . . . . . . 7
IGNITION POWER SUPPLY — IGNITION SW.
IN “ON” AND/OR “START” . . . . . . . . . 9

Fuse . . . . . . . . . . . . . . . . . ... 13
Fusible Link . . . . . . . . . . . . . . . 13
Circuit Breaker . . . . . . . . . . . . . ... 13

GROUND . . . . . . . . . . . . . . . . .. 14

Ground Distribution . . . . . . . . . . . . 14

MAIN HARNESS . . . . . . . . . . . . . 14
ENGINE ROOM HARNESS . . . . . . . . 17
ENGINE HARNESS . . . . . . . . . . . 20
ENGINE CONTROL HARNESS . . . . . . . 21
BODY HARNESS . . . . . . . . . . . . 23
BODY NO.2 HARNESS . . . . . . . . . .. 25

HARNESS . . . . . . . . . . . . . . . . . 27

Harness Layout . . . . . . . . . . . . . .. 27

HOW TO READ HARNESS LAYOUT . . . . . 27
OUTLINE . . . . . . . . . . . . . . . . 28
MAIN HARNESS . . . . . . . . . . . . . 29
ENGINE ROOM HARNESS . . . . . . . . 32
ENGINE HARNESS . . . . . . . . . . . 35
ENGINE CONTROL HARNESS . . . . . . . 36
BODY HARNESS . . . . . . . . . . . . 38
BODY NO. 2 HARNESS . . . . . . . . . . 40
ROOM LAMP HARNESS . . . . . . . . . 42
FRONT DOOR HARNESS . . . . . . . . .. 43

REAR DOOR HARNESS . . . . . . . . . 44

Wiring Diagram Codes (Cell Codes) . . . . . .. 45

ELECTRICAL UNITS LOCATION . . . . . . . 49

Electrical Units Location . . . . . . . . . . . 49

ENGINE COMPARTMENT . . . . . . . . .. 49
PASSENGER COMPARTMENT . . . . . . . 50
LUGGAGE COMPARTMENT . . . . . . . .. 52

HARNESS CONNECTOR . . . . . . . . . . . 53

Description . . . . . . . . . . . . . . . .. 53

HARNESS CONNECTOR (TAB-LOCKING
TYPE) . . . . . . . . . . . . . . . . .. 53
HARNESS CONNECTOR (SLIDE-LOCKING
TYPE) . . . . . . . . . . . . . . . . .. 54

JOINT CONNECTOR (J/C) . . . . . . . . . ... 55

Terminal Arrangement . . . . . . . . . . . 55

ELECTRICAL UNITS . . . . . . . . . . . . 56

Terminal Arrangement . . . . . . . . . . . 56

SMJ (SUPER MULTIPLE JUNCTION) . . . . . . 58

Terminal Arrangement . . . . . . . . . . . 58

STANDARDIZED RELAY . . . . . . . . . . .. 60

Description . . . . . . . . . . . . . . . .. 60

NORMAL OPEN, NORMAL CLOSED AND
MIXED TYPE RELAYS . . . . . . . . . . 60
TYPE OF STANDARDIZED RELAYS . . . . . 60

FUSE BLOCK - JUNCTION BOX (J/B) NO.1 . . .. 62

Terminal Arrangement . . . . . . . . . . . 62

FUSE BLOCK - JUNCTION BOX (J/B) NO.2 . . .. 63

Terminal Arrangement . . . . . . . . . . . 63

FUSE, FUSIBLE LINK AND RELAY BLOCK (J/B) ... 64

Terminal Arrangement . . . . . . . . . . . 64

FUSE, FUSIBLE LINK AND RELAY BOX . . . . 65

Terminal Arrangement . . . . . . . . . . . 65

PG-2

POWER SUPPLY ROUTING

POWER SUPPLY ROUTING

PFP:00011

Schematic

AKS002RQ

TKWA1654E

POWER SUPPLY ROUTING

PG-3

C

D

E

F

G

H

I

J

L

M

A

B

PG

Wiring Diagram — POWER —

AKS002RR

BATTERY POWER SUPPLY— IGNITION SW. IN ANY POSITION

TKWA0683E

PG-4

POWER SUPPLY ROUTING

TKWA0684E