Nissan Frontier D22. Manual - part 539

 

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Nissan Frontier D22. Manual - part 539

 

 

TROUBLE DIAGNOSIS

EC-1259

[VG33ER]

C

D

E

F

G

H

I

J

K

L

M

A

EC

25. 

REINSTALLATION

 Without CONSULT-II

1.

Reconnect throttle position sensor harness connector and closed throttle position switch harness connec-
tor.

2.

Start engine and rev it (2,000 to 3,000 rpm) two or three times under no load and then run engine at idle
speed.

>> GO TO 26.

26. 

CHECK TARGET IDLE SPEED

 Without CONSULT-II

1.

Start engine and warm it up to normal operating temperature.

2.

Check idle speed.

OK or NG

OK

>> GO TO 27.

NG

>> 1. Adjust idle speed. Refer to 

EC-1205, "Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment"

.

2. GO TO 27.

27. 

ERASE UNNECESSARY DTC

After this inspection, unnecessary DTC No. might be displayed.
Erase the stored memory in ECM and TCM (Transmission control module).
Refer to 

EC-1233, "HOW TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION"

  and 

AT-187,

"HOW TO ERASE DTC"

 .

>> INSPECTION END.

M/T: 750

±50 rpm (in Neutral position)

A/T: 750

±50 rpm (in P or N position)

EC-1260

[VG33ER]

TROUBLE DIAGNOSIS

Symptom Matrix Chart

UBS00DS7

SYSTEM — BASIC ENGINE CONTROL SYSTEM

SYMPTOM

Reference 
page

HARD/

NO ST

AR

T

/REST

AR

T (

EXCP

HA)

ENGI

NE ST

ALL

HESI

T

A

TION/

S

URGING/

FL

A

T

 SPOT

SP

ARK KNOCK/DET

O

NA

T

ION

L

A

CK O

F

 POW

E

R/

P

O

OR ACCEL

E

RA

TION

HI

GH I

D

L

E

/L

OW

 I

D

L

E

RO

UGH ID

L

E

/HUNTING

ID

LING VI

BRA

T

ION

SL

OW

/NO RETURN 

T

O

 I

D

L

E

OVERHEA

T

S/

W

A

TER TEMPERA

T

URE HI

GH

EXCESSIVE FUEL

 CONSUM

P

T

IO

N

EXCESSIVE OIL 

CONSUM

P

T

ION

BA

TTER

Y

 DEAD (

UNDER CHARGE)

Warranty symptom code

AA

AB

AC

AD

AE

AF

AG

AH

AJ

AK

AL

AM

HA

Fuel 

Fuel pump circuit

1

1

2

3

2

3

2

3

1

EC-1725

Injector circuit

2

EC-1716

Fuel pressure regulator sys-
tem

4

4

4

4

4

4

4

3

3

4

EC-1219

Evaporative emission system

EC-1740

Air

Positive crankcase ventilation 
system

1

EC-1758

Incorrect idle speed adjust-
ment

3

3

1

1

1

1

1

EC-1205

IACV-AAC valve circuit

2

1

3

3

3

2

2

2

2

3

1

EC-1573

IACV-FICD solenoid valve cir-
cuit

2

3

3

EC-1734

Ignition

Incorrect ignition timing adjust-
ment

3

3

1

1

1

1

1

1

EC-1205

Ignition circuit

1

1

2

2

2

2

2

EC-1710

Main power supply and ground circuit

1

2

3

3

3

3

2

1

3

1

EC-1298

Air conditioner circuit

2

3

2

MTC-22

TROUBLE DIAGNOSIS

EC-1261

[VG33ER]

C

D

E

F

G

H

I

J

K

L

M

A

EC

1 - 6: The numbers refer to the order of inspection.
(continued on next page)

Camshaft position sensor circuit

1

1

2

2

2

2

2

2

EC-1478

Mass air flow sensor circuit

3

EC-1327

EC-

1334

 Heated oxygen sensor 1 circuit

EC-1375

EC-

1384

 , 

EC-

1397

 , 

EC-

1595

 , 

EC-

1602

Engine coolant temperature sensor circuit

1

2

3

3

3

2

3

EC-1345

EC-

1367

Throttle position sensor circuit

1

2

2

2

2

EC-1350

EC-

1359

Incorrect throttle position sensor adjust-
ment

3

1

1

1

1

1

1

1

EC-1247

Vehicle speed sensor circuit

2

3

3

3

EC-1568

Knock sensor circuit

3

EC-1468

 

ECM

2

2

3

3

2

2

1

EC-1593

EC-

1247

Start signal circuit

1

EC-1721

Park/neutral position (PNP) switch circuit

3

3

3

2

3

EC-1703

Power steering oil pressure switch circuit

2

EC-1730

SYMPTOM

Reference 
page

HARD/NO ST

AR

T/REST

AR

T

 (

EXCP

HA)

ENGINE ST

AL

L

HESIT

A

TI

ON/SURGI

N

G/FL

A

T SPOT

SP

ARK KNOCK/

DET

O

NA

TION

L

A

C

K

 OF POW

E

R/POOR ACC

E

L

E

RA

TI

ON

HIGH IDL

E

/L

OW

 IDL

E

ROUGH IDL

E

/HUNTING

IDLING

 VIBRA

T

IO

N

SL

O

W

/NO RETURN 

T

O

 IDL

E

OVERHEA

T

S/W

A

TER TEMPERA

T

UR

E

 HIGH

EXCESS

IVE FUEL CONSUM

P

T

ION

EXCESS

IVE OI

L

 CONSUM

P

T

IO

N

BA

TTER

Y

 DEAD (UNDER CHARGE)

Warranty symptom code

AA

AB

AC

AD

AE

AF

AG

AH

AJ

AK

AL

AM

HA

EC-1262

[VG33ER]

TROUBLE DIAGNOSIS

SYSTEM — ENGINE MECHANICAL & OTHER

SYMPTOM

Reference 
section

HARD/NO ST

AR

T/REST

AR

T (

EXCP

. HA)

ENGINE ST

ALL

HESIT

A

TIO

N

/SURGING

/FL

A

T

 SPOT

SP

ARK KNOCK/DET

O

NA

TION

L

A

CK 

OF POW

E

R/

POOR ACCEL

E

RA

TIO

N

HIGH IDL

E

/L

OW

 IDL

E

ROUGH I

D

L

E

/HUNTING

IDLING VIBRA

T

IO

N

SL

OW

/NO RETURN 

T

O

 IDL

E

OVERHEA

T

S/W

A

TER TEMPERA

T

URE 

HIGH

EXCE

SSI

VE FUEL CONSUM

P

T

IO

N

EXCE

SSI

VE OIL 

CONSUM

P

T

ION

BA

TT

ER

Y DEAD (

UNDER CHARGE)

Warranty symptom code

AA

AB

AC

AD

AE

AF

AG

AH

AJ

AK

AL

AM

HA

Fuel

Fuel tank

5

5

FL-3

Fuel piping

5

5

5

5

4

5

Vapor lock

Valve deposit

5

5

5

5

5

 

4

5

Poor fuel (Heavy weight gaso-
line, Low octane)

Air

Air duct

5

5

5

5

4

5

Air cleaner

Air leakage from air duct
(Mass air flow sensor — throt-
tle body)

5

5

5

4

Throttle body, Throttle wire

EM-80

Air leakage from intake mani-
fold/Collector/Gasket

5

Crank-
ing

Battery

1

1

1

1

1

1

1

1

SC-4

Generator circuit

SC-26

Starter circuit

SC-9

Park/neutral position (PNP) 
switch

MT-46

AT-

249

Drive plate/Flywheel

6

EM-80

 

 

 

 

 

 

 

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