Infiniti M45 (Y34). Manual - part 684

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POWER SUPPLY, GROUND & CIRCUIT ELEMENTS

K  ELECTRICAL

CONTENTS

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SECTION 

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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

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POWER SUPPLY ROUTING

POWER SUPPLY ROUTING 

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Schematic 

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POWER SUPPLY ROUTING

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Wiring Diagram — POWER — 

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BATTERY POWER SUPPLY— IGNITION SW. IN ANY POSITION 

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POWER SUPPLY ROUTING

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