Infiniti FX35 / FX45. Manual — part 334

TROUBLE DIAGNOSIS

EC-97

< SERVICE INFORMATION >

[VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

1 - 6: The numbers refer to the order of inspection.

(continued on next page)

SYSTEM — ENGINE MECHANICAL & OTHER

Crankshaft position sensor (POS) circuit

2

2

EC-319

Camshaft position sensor (PHASE) circuit

3

2

EC-324

Vehicle speed signal circuit

2

3

3

3

EC-407

Power steering pressure sensor circuit

2

3

3

EC-413

ECM

2

2

3

3

3

3

3

3

3

3

3

EC-418

,

EC-422

Intake valve timing control solenoid valve cir-
cuit

3

2

1

3

2

2

3

3

EC-168

Park/neutral position (PNP) switch circuit

3

3

3

3

3

EC-429

Refrigerant pressure sensor circuit

2

3

3

4

EC-581

Electrical load signal circuit

3

EC-550

Air conditioner circuit

2

2

3

3

3

3

3

3

3

3

2

ATC-32

ABS actuator and electric unit (control unit)

4

BRC-13

SYMPTOM

Reference
page

HARD/NO S

T

A

R

T/RES

T

A

R

T (E

XCP

. HA)

E

N

GINE

ST

ALL

HES

IT

A

TION/SURGING/FLA

T

SPOT

S

P

ARK KNOC

K

/DET

O

NA

TI

ON

LACK OF

POWER/POOR ACCELERA

TION

HIG

H

IDL

E

/L

OW

ID

LE

ROUGH IDLE/HUNTING

ID

LING VI

BRA

T

ION

S

L

OW/NO RETU

RN

T

O ID

LE

OVERHEA

T

S

/W

A

TER TEMPERA

T

URE HIG

H

E

XCESSIVE

FUEL CON

S

UMP

T

ION

E

XCESSIVE

OIL

C

O

NSUMP

T

ION

B

A

TTER

Y

DEAD (UNDER CHARGE)

Warranty symptom code

AA

AB

AC

AD

AE

AF

AG

AH

AJ

AK

AL

AM

HA

EC-98

< SERVICE INFORMATION >

[VQ35DE]

TROUBLE DIAGNOSIS

SYMPTOM

Reference
page

HARD/NO ST

AR

T/REST

AR

T (EXCP

.

HA)

E

N

GI

N

E

ST

AL

L

HESIT

A

TION/S

U

R

GING/F

LA

T SP

OT

SP

ARK KNOCK/DE

T

O

NA

TION

LACK OF POWE

R/POOR

ACCELERA

TIO

N

HIGH IDL

E

/L

OW

IDL

E

ROUG

H IDLE/HU

NTING

IDL

ING VIBRA

T

ION

SLO

W

/NO RETURN T

O

IDLE

OVERHEA

T

S/W

A

TE

R

TEMPERA

T

URE

HIGH

EXCES

SIVE F

U

EL CONSUMP

T

ION

EXCES

SIVE OI

L CONSUMP

T

IO

N

BA

TTE

R

Y

DEAD (UN

D

E

R

CH

A

R

GE)

Warranty symptom code

AA

AB

AC

AD

AE

AF

AG

AH

AJ

AK

AL

AM

HA

Fuel

Fuel tank

5

5

FL-10

Fuel piping

5

5

5

5

5

5

EM-45

Vapor lock

—

Valve deposit

5

5

5

5

5

5

5

—

Poor fuel (Heavy weight gasoline,
Low octane)

—

Air

Air duct

5

5

5

5

5

5

EM-17

Air cleaner

EM-17

Air leakage from air duct
(Mass air flow sensor — electric
throttle control actuator)

5

5

5

5

EM-17

Electric throttle control actuator

EM-19

Air leakage from intake manifold/
Collector/Gasket

EM-19

,

EM-24

Cranking

Battery

1

1

1

1

1

1

1

1

SC-4

Generator circuit

SC-19

Starter circuit

3

SC-8

Signal plate

6

EM-122

Park/neutral position (PNP)
switch

4

AT-102

Engine

Cylinder head

5

5

5

5

5

5

5

5

EM-100

Cylinder head gasket

4

3

Cylinder block

6

6

6

6

6

6

6

6

4

EM-122

Piston

Piston ring

Connecting rod

Bearing

Crankshaft

Valve
mecha-
nism

Timing chain

5

5

5

5

5

5

5

5

EM-64

Camshaft

EM-83

Intake valve timing control

EM-64

Intake valve

3

EM-100

Exhaust valve

TROUBLE DIAGNOSIS

EC-99

< SERVICE INFORMATION >

[VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

1 - 6: The numbers refer to the order of inspection.

Exhaust

Exhaust manifold/Tube/Muffler/
Gasket

5

5

5

5

5

5

5

5

EM-26

,

EX-

3

Three way catalyst

Lubrica-
tion

Oil pan/Oil strainer/Oil pump/Oil
filter/Oil gallery/Oil cooler

5

5

5

5

5

5

5

5

EM-30

,

LU-

15

,

LU-8

,

LU-12

Oil level (Low)/Filthy oil

LU-5

Cooling

Radiator/Hose/Radiator filler cap

5

5

5

5

5

5

5

4

5

CO-13

,

CO-16

Thermostat

5

CO-27

Water pump

CO-22

Water gallery

CO-29

Cooling fan

5

EC-210

Coolant level (Low)/Contaminat-
ed coolant

5

CO-10

IVIS (Infiniti Vehicle Immobilizer System —
NATS)

1

1

EC-53

or

BL-185

SYMPTOM

Reference
page

HARD/NO S

T

A

R

T/RES

T

A

R

T (E

XCP

. HA)

E

N

GINE

ST

ALL

HES

IT

A

TION/SURGING/FLA

T

SPOT

S

P

ARK KNOC

K

/DET

O

NA

TI

ON

LACK OF

POWER/POOR ACCELERA

TION

HIG

H

IDL

E

/L

OW

ID

LE

ROUGH IDLE/HUNTING

ID

LING VI

BRA

T

ION

S

L

OW/NO RETU

RN

T

O ID

LE

OVERHEA

T

S

/W

A

TER TEMPERA

T

URE HIG

H

E

XCESSIVE

FUEL CON

S

UMP

T

ION

E

XCESSIVE

OIL

C

O

NSUMP

T

ION

B

A

TTER

Y

DEAD (UNDER CHARGE)

Warranty symptom code

AA

AB

AC

AD

AE

AF

AG

AH

AJ

AK

AL

AM

HA

EC-100

< SERVICE INFORMATION >

[VQ35DE]

TROUBLE DIAGNOSIS

Engine Control Component Parts Location

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