Nissan Cube. Manual - part 395

EC-466

< SYMPTOM DIAGNOSIS >

[MR18DE]

ENGINE CONTROL SYSTEM SYMPTOMS

SYMPTOM DIAGNOSIS

ENGINE CONTROL SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000009947583

SYSTEM — BASIC ENGINE CONTROL SYSTEM

SYMPTOM

Reference 

page

HARD/NO ST

AR

T

/REST

AR

T

 (EXCP

. 

H

A

)

ENGINE ST

ALL

HESIT

A

TION/SURGING/FLA

T

 SPOT

SP

ARK KNOCK/DET

O

NA

TION

LACK

 OF POWER/

POOR 

ACC

E

LERA

TION

HIGH IDL

E/LOW

 IDLE

ROUG

H IDLE/HUNTING

IDLI

NG VIBRA

TION

SLOW/NO RETURN T

O

 IDLE

OVERHEA

T

S/W

A

TER TEMPERA

T

UR

E

 HIGH

EXCESS

IVE F

U

E

L

 CONSUMP

T

IO

N

EXCESS

IVE OIL CONSUMP

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

2

2

3

2

EC-409

Fuel  pressure  regulator  system

3

3

4

4

4

4

4

4

4

4

EC-478

Fuel  injector  circuit

1

1

2

3

2

2

2

2

EC-406

Evaporative  emission  system

3

3

4

4

4

4

4

4

4

4

EC-82

Air

Positive crankcase ventilation sys-
tem

3

3

4

4

4

4

4

4

4

4

1

EC-424

Incorrect idle speed adjustment

1

1

1

1

1

EC-18

Electric  throttle  control  actuator

1

1

2

3

3

2

2

2

2

2

2

EC-375
EC-379

Ignition

Incorrect  ignition  timing  adjustment

3

3

1

1

1

1

1

1

EC-18

Ignition  circuit

1

1

2

2

2

2

2

2

EC-412

Main  power  supply  and  ground  circuit

2

2

3

3

3

3

3

2

3

EC-129

Mass air flow sensor circuit

1

1

2

2

2

2

2

2

EC-147
EC-154

Engine coolant temperature sensor circuit

3

3

3

EC-163
EC-166

Air fuel ratio (A/F) sensor 1 circuit

EC-180
EC-184
EC-187
EC-210
EC-368

Throttle position sensor circuit

2

2

EC-169
EC-230
EC-331
EC-333
EC-390

Accelerator pedal position sensor circuit

3

2

1

EC-383
EC-386
EC-393

Knock sensor circuit

2

3

EC-239

ENGINE CONTROL SYSTEM SYMPTOMS

EC-467

< SYMPTOM DIAGNOSIS >

[MR18DE]

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 table)

SYSTEM — ENGINE MECHANICAL & OTHER

Crankshaft position sensor (POS) circuit

2

2

EC-241

Camshaft position sensor (PHASE) circuit

3

2

EC-245

Vehicle speed signal circuit

2

3

3

3

EC-303

ECM

2

2

3

3

3

3

3

3

3

3

3

EC-312
EC-314

Intake valve timing control solenoid valve cir-
cuit

3

2

1

3

2

2

3

3

EC-134

transmission range switch circuit

3

3

3

3

3

EC-317

PNP switch circuit

3

3

3

3

3

EC-317

Refrigerant pressure sensor circuit

2

3

3

4

EC-425

Electrical load signal circuit

3

EC-404

Air  conditioner  circuit

2

2

3

3

3

3

3

3

3

3

2

HAC-114

HAC-196

ABS actuator and electric unit (control unit)

4

BRC-97

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-468

< SYMPTOM DIAGNOSIS >

[MR18DE]

ENGINE CONTROL SYSTEM SYMPTOMS

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

A
A

AB

AC

AD

AE

AF

AG

AH

AJ

AK

AL

AM

HA

Fuel

Fuel tank

5

5

FL-13

Fuel piping

5

5

5

5

5

5

FL-4

Vapor lock

—

Valve deposit

5

5

5

5

5

5

5

—

Poor fuel (Heavy weight gas-
oline, Low octane)

—

Air

Air duct

5

5

5

5

5

5

EM-15

Air cleaner

Air leakage from air duct
(Mass air flow sensor — elec-
tric throttle control actuator)

5

5

5

5

Electric throttle control actua-
tor

EM-26

Air leakage from intake mani-
fold/Collector/Gasket

Cranking

Battery

1

1

1

1

1

1

1

1

PG-3

Generator circuit

CHG-10

Starter circuit

3

STR-2
STR-5

Signal plate

6

EM-86

Transmission range switch

4

TM-109

 (CVT)

PNP switch

4

TM-8

  (M/T)

Engine

Cylinder head

5

5

5

5

5

5

5

5

EM-65

Cylinder head gasket

4

3

Cylinder block

6

6

6

6

6

6

6

6

4

EM-86

Piston

Piston ring

Connecting rod

Bearing

Crankshaft

ENGINE CONTROL SYSTEM SYMPTOMS

EC-469

< SYMPTOM DIAGNOSIS >

[MR18DE]

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.

Valve 
mecha-
nism

Timing chain

5

5

5

5

5

5

5

5

EM-42

Camshaft

EM-53

Intake valve timing control

EM-42

Intake valve

3

EM-65

Exhaust valve

Exhaust

Exhaust manifold/Tube/Muf-
fler/Gasket

5

5

5

5

5

5

5

5

EM-29

EX-4

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-32

LU-8

LU-12

Oil level (Low)/Filthy oil

LU-8

Cooling

Radiator/Hose/Radiator filler 
cap

5

5

5

5

5

5

5

4

5

CO-12
CO-12

Thermostat

5

CO-21

Water pump

CO-19

Water gallery

CO-2

Cooling fan

5

EC-402

Coolant level (Low)/Contami-
nated coolant

CO-2

NVIS (NISSAN Vehicle Immobilizer Sys-
tem — NATS)

1

1

SEC-16

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

A
A

AB

AC

AD

AE

AF

AG

AH

AJ

AK

AL

AM

HA