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Infiniti QX4. Electrical System (2003 year). Manual - part 37

MEL666P

IDX

HARNESS LAYOUT

Engine Control Harness (Cont’d)

EL-581

Body Harness LH

NBEL0438

MEL373Q

HARNESS LAYOUT

Body Harness LH

EL-582

Body Harness RH

NBEL0439

MEL406R

IDX

HARNESS LAYOUT

Body Harness RH

EL-583

Back Door Harness

NBEL0440

MEL375Q

HARNESS LAYOUT

Back Door Harness

EL-584

Engine and Transmission Harness

NBEL0441

MEL376Q

IDX

HARNESS LAYOUT

Engine and Transmission Harness

EL-585

Room Lamp Harness

NBEL0442

MEL377Q

HARNESS LAYOUT

Room Lamp Harness

EL-586

Air Bag Harness

NBEL0443

MEL378Q

IDX

HARNESS LAYOUT

Air Bag Harness

EL-587

Front Door Harness

NBEL0444

MEL379Q

HARNESS LAYOUT

Front Door Harness

EL-588

Rear Door Harness

NBEL0445

MEL261M

IDX

HARNESS LAYOUT

Rear Door Harness

EL-589

NBEL0446

Headlamp

NBEL0446S01

Item

Wattage W

High/Low

60/55 (HB2)

Exterior Lamp

NBEL0446S02

Item

Wattage W

Front fog lamp

Front turn signal lamp

Parking lamp

Rear combination lamp

Turn signal lamp

Stop/Tail lamp

21/5

Back-up lamp

License plate lamp

High-mounted stop lamp

Interior Lamp

NBEL0446S03

Item

Wattage W

Interior lamp

Vanity mirror lamp

1.4

Spot lamp

Luggage room lamp

BULB SPECIFICATIONS

Headlamp

EL-590

NBEL0447

Use the chart below to find out what each wiring
diagram code stands for.
Refer to the wiring diagram code in the alphabetical
index to find the location (page number) of each
wiring diagram.

Code

Section

Wiring Diagram Name

1STSIG

A/T 1ST Signal

2NDSIG

A/T 2ND Signal

3RDSIG

A/T 3RD Signal

4THSIG

A/T 4TH Signal

A/C, A

Auto Air Conditioner

AAC/V

IACV-AAC Valve

ABS

Anti-lock Brake System

ASCD

Automatic Speed Control Device

AT/C

A/T Control

AT/IND

A/T Indicator Lamp

AUDIO

Audio

AUT/DP

Automatic Drive Positioner

BA/FTS

A/T Fluid Temperature Sensor
and TCM Power Supply

BACK/L

Back-up Lamp

BYPS/V

Vacuum Cut Valve Bypass Valve

CHARGE

Charging System

CHIME

Warning Chime

CIGAR

Cigarette Lighter

CLOCK

Clock

COMPAS

Compass and Thermometer

D/LOCK

Power Door Lock

DEF

Rear Window Defogger

DTRL

Headlamp — With Daytime Light
System —

ECTS

Engine Coolant Temperature Sen-
sor

ENGSS

Engine Speed Signal

F/FOG

Front Fog Lamp

F/PUMP

Fuel Pump Control

F/LID

Fuel Lid Opener

FLS1

Fuel Level Sensor Circuit

FLS2

Fuel Level Sensor Circuit

FLS3

Fuel Level Sensor Circuit

FTS

A/T Fluid Temperature Sensor

FTTS

Fuel Tank Temperature Sensor

Code

Section

Wiring Diagram Name

FUELB2

Fuel Injection System Function
(Left Bank)

FUELB1

Fuel Injection System Function
(Right Bank)

H/AIM

Headlamp Aiming Control System

H/LAMP

Headlamp

HORN

Horn

HSEAT

Heated Seat

IATS

Intake Air Temperature Sensor

ICC

Intelligent Cruise Control System

IGN/SG

Ignition Signal

ILL

Illumination

INJECT

Injector

INT/L

Interior, Spot, Vanity Mirror, and
Luggage Room Lamps

IVCB2

Intake Valve Timing Control Sole-
noid Valve (B2)

IVCB1

Intake Valve Timing Control Sole-
noid Valve (B1)

IVCSB2

Intake Valve Timing Control Posi-
tion Sensor (B2)

IVCSB1

Intake Valve Timing Control Posi-
tion Sensor (B1)

KEYLES

Remote Keyless Entry System

Knock Sensor

LAN

A/T Communication Line

LOAD

Electrical Load Signal

LPSV

Line Pressure Solenoid Valve

MAFS

Mass Air Flow Sensor

MAIN

Main Power Supply and Ground
Circuit

MAIN

Main Power Supply and Ground
Circuit

METER

Speedometer, Tachometer, Temp.,
Oil, and Fuel Gauges

MIL/DL

MIL and Data Link Connectors

MIRROR

Door Mirror

NATS

IVIS (INFINITI Vehicle Immobilizer
System)

NAVI

Navigation System

NONDTC

Non-detectable Items

O2H1B1

Heated Oxygen Sensor 1 Heater
Bank 1

IDX

WIRING DIAGRAM CODES (CELL CODES)

EL-591

Code

Section

Wiring Diagram Name

O2H1B2

Heated Oxygen Sensor 1 Heater
Bank 2

O2H2B1

Heated Oxygen Sensor 2 Heater
Bank 1

O2H2B2

Heated Oxygen Sensor 2 Heater
Bank 2

O2S1B1

Heated Oxygen Sensor 1 Bank 1

O2S1B2

Heated Oxygen Sensor 1 Bank 2

O2S2B1

Heated Oxygen Sensor 2 Bank 1

O2S2B2

Heated Oxygen Sensor 2 Bank 2

OVRCSV

Overrun Clutch Solenoid Valve

P/ANT

Power Antenna

PGC/V

EVAP Canister Purge Volume
Control Solenoid Valve

PHASE

Camshaft Position Sensor
(PHASE)

PNP/SW

Park/Neutral Position Switch

PNP/SW

Park/Neutral Position Switch

POS

Crankshaft Position Sensor
(CKPS) (POS)

POWER

Power Supply Routing

PRE/SE

EVAP Control System Pressure
Sensor

PST/SW

Power Steering Oil Pressure
Switch

REF

Crankshaft Position Sensor
(CKPS) (REF)

REMOTE

Audio (Remote Control Switch)

RP/SEN

Refrigerant Pressure Sensor

S/SIG

Start Signal

S/VCSW

Swirl Control Valve Control
Vacuum Check Switch

SEAT

Power Seat

SHIFT

A/T Shift Lock System

SROOF

Sunroof

SRS

Supplemental Restraint System

SSV/A

Shift Solenoid Valve A

SSV/B

Shift Solenoid Valve B

START

Starting System

STOP/L

Stop lamp

SWL/V

Swirl Control Valve Control Sole-
noid Valve

Code

Section

Wiring Diagram Name

TAIL/L

Parking, License and Tail Lamps

TCCSIG

A/T TCC Signal (Lock up)

TCV

Torque Converter Clutch Solenoid
Valve

T/F

Transfer

TLID

Trunk Lid Opener

TP/SW

Throttle Position Switch

TPS

Throttle Position Sensor

TPS

Throttle Position Sensor

TRNSCV

Homelink Universal Transceiver

TRSA/T

Turbine Revolution Sensor

TURN

Turn Signal and Hazard Warning
Lamps

VEHSEC

Vehicle Security System

VENT/V

EVAP canister vent control valve

VIAS/V

Variable Induction Air Control Sys-
tem

VSS

Vehicle Speed Sensor

VSSA/T

Vehicle Speed Sensor A/T (Revo-
lution Sensor)

VSSMTR

Vehicle Speed Sensor MTR

WARN

Warning Lamps

WINDOW

Power Window

WIP/R

Rear Wiper and Washer

WIPER

Front Wiper and Washer

WIRING DIAGRAM CODES (CELL CODES)

EL-592

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