Infiniti QX4. Electrical System (2003 year). Manual — part 10

Wiring Diagram — WARN —

NBEL0309

MEL311Q

GI

MA

EM

LC

EC

FE

AT

TF

PD

AX

SU

BR

ST

RS

BT

HA

SC

IDX

WARNING LAMPS

Wiring Diagram — WARN —

EL-149

MEL312Q

WARNING LAMPS

Wiring Diagram — WARN — (Cont’d)

EL-150

MEL313Q

GI

MA

EM

LC

EC

FE

AT

TF

PD

AX

SU

BR

ST

RS

BT

HA

SC

IDX

WARNING LAMPS

Wiring Diagram — WARN — (Cont’d)

EL-151

MEL397R

WARNING LAMPS

Wiring Diagram — WARN — (Cont’d)

EL-152

MEL315Q

GI

MA

EM

LC

EC

FE

AT

TF

PD

AX

SU

BR

ST

RS

BT

HA

SC

IDX

WARNING LAMPS

Wiring Diagram — WARN — (Cont’d)

EL-153

MEL316Q

WARNING LAMPS

Wiring Diagram — WARN — (Cont’d)

EL-154

MEL317Q

GI

MA

EM

LC

EC

FE

AT

TF

PD

AX

SU

BR

ST

RS

BT

HA

SC

IDX

WARNING LAMPS

Wiring Diagram — WARN — (Cont’d)

EL-155

SEL062WA

Fuel Warning Lamp Sensor Check

NBEL0310

1.

Turn ignition switch “OFF”.

2.

Disconnect fuel level sensor unit harness connector B12.

3.

Connect a resistor (80

Ω

) between fuel tank gauge unit harness

connector terminals 2 and 3.

4.

Turn ignition switch “ON”.

The fuel warning lamp should come on.
NOTE:
ECM might store the 1st trip DTC P0180 during this inspection.
If the DTC is stored in ECM memory, erase the DTC after recon-
necting fuel tank gauge unit harness connector.
Refer to EC-72, “HOW TO ERASE EMISSION-RELATED DIAG-
NOSTIC INFORMATION”.

MEL425F

Electrical Components Inspection

NBEL0311

OIL PRESSURE SWITCH CHECK

NBEL0311S01

Oil pressure

kPa (kg/cm

2

, psi)

Continuity

Engine start

More than 10 - 20

(0.1 - 0.2, 1 - 3)

NO

Engine stop

Less than 10 - 20

(0.1 - 0.2, 1 - 3)

YES

Check the continuity between the terminals of oil pressure switch
and body ground.

SEL901F

DIODE CHECK

NBEL0311S02

쐌

Check continuity using an ohmmeter.

쐌

Diode is functioning properly if test results are as shown in the
figure at left.

쐌

Check diodes at the combination meter harness connector
instead of checking them on the combination meter assembly.
Refer to EL-149, “WARNING LAMP” wiring diagrams.

NOTE:
Specification may vary depending on the type of tester. Before
performing this inspection, be sure to refer to the instruction
manual for the tester to be used.

WARNING LAMPS

Fuel Warning Lamp Sensor Check

EL-156

Wiring Diagram — AT/IND —

NBEL0477

MEL398R

GI

MA

EM

LC

EC

FE

AT

TF

PD

AX

SU

BR

ST

RS

BT

HA

SC

IDX

A/T INDICATOR

Wiring Diagram — AT/IND —

EL-157

MEL608P

A/T INDICATOR

Wiring Diagram — AT/IND — (Cont’d)

EL-158

Component Parts and Harness Connector
Location

NBEL0312

SEL673Y

System Description

NBEL0313

The warning chime is controlled by the smart entrance control unit.
The warning chime is located in the smart entrance control unit.
Power is supplied at all times

쐌

through 7.5A fuse [No. 24, located in fuse block (J/B)]

쐌

to smart entrance control unit terminal 49 and

쐌

to key switch terminal 2,

쐌

through 10A fuse (No. 61, located in the fuse and fusible link box)

쐌

to tail lamp relay terminals 1 and 3.

When the ignition switch in the ON or START position, power is supplied

쐌

through 7.5A fuse [No. 11, located in the fuse block (J/B)]

쐌

to smart entrance control unit terminal 27.

Ground is supplied

쐌

to smart entrance control unit terminals 43 and 64

쐌

through body grounds M77 and M111.

When a signal, or combination of signals, is received by the smart entrance control unit, the warning chime
will sound.

IGNITION KEY WARNING CHIME

NBEL0313S01

When the key in the ignition switch in the OFF position, and the driver’s door open, the warning chime will
sound. Power is supplied

GI

MA

EM

LC

EC

FE

AT

TF

PD

AX

SU

BR

ST

RS

BT

HA

SC

IDX

WARNING CHIME

Component Parts and Harness Connector Location

EL-159

쐌

from key switch terminal 1

쐌

to smart entrance control unit terminal 25.

Ground is supplied

쐌

from front door switch LH terminal 1

쐌

to smart entrance control unit terminal 1.

Front door switch LH terminal 2 is grounded through body grounds B11, B22 and D210.

LIGHT WARNING CHIME

NBEL0313S02

When ignition switch OFF, driver’s door open, and lighting switch in 1ST or 2ND position, warning chime will
sound. Power is supplied.

쐌

from tail lamp relay terminal 2

쐌

to smart entrance control unit terminal 19 and 57.

Ground is supplied

쐌

from front door switch LH terminal 1

쐌

to smart entrance control unit terminal 1.

Front door switch LH terminal 2 is grounded through body grounds B11, B22 and D210.

SEAT BELT WARNING CHIME

NBEL0313S03

With ignition switch turned ON and seat belt unfastened (seat belt buckle switch ON), warning chime will sound
for approximately 6 seconds.
Ground is supplied

쐌

from seat belt buckle switch terminal 1

쐌

to smart entrance control unit terminal 28.

Seat belt switch terminal 2 is grounded through body grounds B11, B22 and D210.

WARNING CHIME

System Description (Cont’d)

EL-160

Wiring Diagram — CHIME —

NBEL0314

MEL319Q

GI

MA

EM

LC

EC

FE

AT

TF

PD

AX

SU

BR

ST

RS

BT

HA

SC

IDX

WARNING CHIME

Wiring Diagram — CHIME —

EL-161

MEL610P

WARNING CHIME

Wiring Diagram — CHIME — (Cont’d)

EL-162

SEL670Y

CONSULT-II Inspection Procedure

=NBEL0315

“KEY WARN ALM”/“LIGHT WARN ALM”/“SEAT BELT
ALM”

NBEL0315S01

1.

Turn ignition switch “OFF”.

2.

Connect “CONSULT-II” and “CONSULT-II CONVERTER” to
the data link connector.

SKIA3098E

3.

Turn ignition switch “ON”.

4.

Touch “START (NISSAN BASED VHCL)”.

SEL398Y

5.

Touch “SMART ENTRANCE”.
If “SMART ENTRANCE” is not indicated, go to GI-42, “CON-
SULT-II Data Link Connector (DLC) Circuit”.

SEL023X

6.

Touch “KEY WARN ALM”, “LIGHT WARN ALM” or “SEAT BELT
ALM”.

SEL322W

7.

Select diagnosis mode.
“DATA MONITOR” and “ACTIVE TEST” are available for the
warning chime.

GI

MA

EM

LC

EC

FE

AT

TF

PD

AX

SU

BR

ST

RS

BT

HA

SC

IDX

WARNING CHIME

CONSULT-II Inspection Procedure

EL-163

CONSULT-II Application Items

NBEL0316

“KEY WARNING ALARM”

NBEL0316S01

Data Monitor

NBEL0316S0101

Monitored Item

Description

IGN ON SW

Indicates [ON/OFF] condition of ignition switch.

KEY ON SW

Indicates [ON/OFF] condition of key switch.

DOOR SW DR

Indicates [ON/OFF] condition of front door switch LH.

Active Test

NBEL0316S0102

Test Item

Description

CHIME

This test is able to check key warning chime operation. Key warning chime sounds for 2
seconds after touching “ON” on CONSULT-II screen.

“LIGHT WARN ALM”

NBEL0316S02

Data Monitor

NBEL0316S0201

Monitored Item

Description

LIGHT SW 1ST

Indicates [ON/OFF] condition of lighting switch.

IGN ON SW

Indicates [ON/OFF] condition of ignition switch.

DOOR SW-DR

Indicates [ON/OFF] condition of front door switch LH.

Active Test

NBEL0316S0202

Test Item

Description

CHIME

This test is able to check light warning chime operation. Light warning chime sounds for 2
seconds after touching “ON” on CONSULT-II screen.

“SEAT BELT WARM ALM”

NBEL0316S03

Data Monitor

NBEL0316S0301

Monitored Item

Description

IGN ON SW

Indicates [ON/OFF] condition of ignition switch.

SEAT BELT SW

Indicates [ON/OFF] condition of seat belt switch.

Active Test

NBEL0316S0302

Test Item

Description

CHIME

This test is able to check seat belt warning chime operation. Seat belt warning chime
sounds for 2 seconds after touching “ON” on CONSULT-II screen.

WARNING CHIME

CONSULT-II Application Items

EL-164