Nissan Terrano r20e. Manual - part 176

SYSTEM — Engine control system

Malfunction

SYMPT

OM

Reference page

Feature of symptom

Check point

HARD/NO START/
RESTART (EXCP. HA)

ENGINE STALL

HESITATION/SURGING/FLAT SPOT

SPARK KNOCK/DETONATION

LACK OF POWER

POOR ACCELERATION

HI IDLE

LOW IDLE

ROUGH IDLE/HUNTING

IDLING VIBRATION

SLOW/NO RETURN TO IDLE

OVERHEAT/HIGH ENGINE COOLANT TEMPERATURE

EXCESSIVE FUEL CONSUMPTION

EXCESSIVE OIL CONSUMPTION

ABNORMAL SMOKE COLOR

DEAD BATTERY (UNDER CHARGE)

Malfunction indicator lamp illuminates.

Can be detected by CONSULT-II?

Fuel cut

NO START (with first firing)

NO START (without first firing)

HARD TO START WHEN ENGINE IS COLD

HARD TO START WHEN ENGINE IS HOT

AT IDLE

DURING DRIVING

WHEN DECELERATING

BLACK SMOKE

WHITE SMOKE

New

CT/CS

AA

AB

AC

AD

AE

AF

AG

AH

AJ

AK

AL

AM

AP

HA

Mass

air

flow

sensor

circuit

open,

ground

short

qq

q

q

EC-356

short

qq

q

Engine

coolant

temperature

sensor

circuit

open,

short

qqq

q

q

q

q

q

EC-361

Compensation

according

to

engine

coolant

temperature

does

not

function.

V

ehicle

speed

sensor

circuit

open,

short

qq

EC-397

Control

sleeve

position

sensor

circuit

open,

short

qqq

qqq

EC-414

Injection

timing

control

valve

circuit

open,

short

qq

q

EC-380

Injection

timing

cannot

be

con-

trolled.

ground

short

qq

Accelerator

switch

(F/C)

circuit

open,

short

q

qq

EC-365

ground

short

qq

Needle

lift

sensor

circuit

open,

short

qq

q

EC-427

Fuel

cut

solenoid

valve

circuit

open,

ground

short

q

qqq

q

EC-376

short

qqq

Engine

runs

on

after

turning

igni-

tion

switch

OFF

.

Fuel

temperature

sensor

circuit

open,

short

qq

qq

qq

q

q

q

q

EC-372

Compensation

for

amount

of

fuel

injected

according

to

fuel

tem-

perature

does

not

function.

Accelerator

position

sensor

circuit

open,

short

qq

q

q

q

EC-365

Crankshaft

position

sensor

(TDC)

cir-

cuit

open,

short

qq

q

q

EC-385

noise

qqq

qq

TROUBLE DIAGNOSES

TD27Ti

Symptom Matrix Chart (Cont’d)

EC-341

SYSTEM — Engine control system

Malfunction

SYMPT

OM

Reference

page

Feature of symptom

Check point

HARD/NO START/
RESTART (EXCP. HA)

ENGINE STALL

HESITATION/SURGING/FLAT SPOT

SPARK KNOCK/DETONATION

LACK OF POWER

POOR ACCELERATION

HI IDLE

LOW IDLE

ROUGH IDLE/HUNTING

IDLING VIBRATION

SLOW/NO RETURN TO IDLE

OVERHEAT/HIGH ENGINE COOLANT TEMPERATURE

EXCESSIVE FUEL CONSUMPTION

EXCESSIVE OIL CONSUMPTION

ABNORMAL SMOKE COLOR

DEAD BATTERY (UNDER CHARGE)

Malfunction indicator lamp illuminates.

Can be detected by CONSULT-II?

Fuel cut

NO START (with first firing)

NO START (without first firing)

HARD TO START WHEN ENGINE IS COLD

HARD TO START WHEN ENGINE IS HOT

AT IDLE

DURING DRIVING

WHEN DECELERATING

BLACK SMOKE

WHITE SMOKE

New

CT/CS

AA

AB

AC

AD

AE

AF

AG

AH

AJ

AK

AL

AM

AP

HA

Start

signal

circuit

open,

short

qq

EC-449

Start

control

does

not

function.

Air

conditioner

switch

circuit

open,

ground

short

EC-440

Air

Conditioner

does

not

stop

operating.

short

Air

Conditioner

does

not

work.

Ignition

switch

circuit

open

q

qqq

EC-449

short

Engine

does

not

stop.

Power

supply

for

ECM

circuit

open

qqq

EC-352

short

qq

Throttle

control

solenoid

valve

circuit

open,

short

EC-435

Does

not

operate.

ground

short

qq

q

Does

not

stop

operating.

EGRC-solenoid

valve

A,

B

circuit

open,

short

EC-431

ground

short

q

Does

not

stop

operating.

Glow

relay

circuit

open

qqqq

q

EC-389

Glow

lamp

does

not

turn

on.

short

Glow

lamp

does

not

turn

of

f.

ECM

relay

(Self-shut

of

f)

circuit

open

qqq

q

EC-446

short

qq

Ground

short

makes

engine

unable

to

stop.

Air

conditioner

relay

circuit

open

EC-440

Air

conditioner

does

not

operate.

short

Air

conditioner

does

not

stop

operating.

ECM,

Connector

circuit

open,

short

qqqqqqqqqqqqq

q

qqqqqqqqqqq

EC-346,

452

TROUBLE DIAGNOSES

TD27Ti

Symptom Matrix Chart (Cont’d)

EC-342

CONSULT-II Reference Value in Data Monitor
Mode

Remarks:

I

Specification data are reference values.

I

Specification data are output/input values which are detected or supplied by the ECM at the connector.
* Specification data may not be directly related to their components signals/values/operations.

MONITOR ITEM

CONDITION

SPECIFICATION

CKPS

⋅

RPM (TDC)

I

Tachometer: Connect

I

Run engine and compare tachometer indication with the CONSULT-II value.

Almost the same speed as the CON-
SULT-II value.

CKPS

⋅

RPM (REF)

CMPS

⋅

RPM-PUMP

COOLAN TEMP/S

I

Engine: After warming up

More than 70°C (158°F)

VHCL SPEED SE

I

Turn drive wheels and compare speedometer indication with the CONSULT-II
value

Almost the same speed as
the CONSULT-II value

FUEL TEMP SEN

I

Engine: After warming up

More than 40°C (104°F)

ACCEL POS SEN

I

Ignition switch: ON
(Engine stopped)

Accelerator pedal: release

0.40 - 0.60V

Accelerator pedal: depress

Approx. 4.0V

FULL ACCEL SW

I

Ignition switch: ON
(Engine stopped)

Accelerator pedal: depress

ON

Except above

OFF

ACCEL SW (FC)

I

Ignition switch: ON
(Engine stopped)

Accelerator pedal: release

CLOSE

Accelerator pedal: slightly open

OPEN

OFF ACCEL SW

I

Ignition switch: ON
(Engine stopped)

Accelerator pedal: release

ON

Accelerator pedal: slightly open

OFF

C/SLEEV POS/S

I

Engine: After warming up, idle the engine

1.0 - 3.5V

BATTERY VOLT

I

Ignition switch: ON (Engine stopped)

11 - 14V

P/N POSI SW

I

Ignition switch: ON

Shift lever: Neutral

ON

Except above

OFF

START SIGNAL

I

Ignition switch: ON

,

START

,

ON

OFF

,

ON

,

OFF

AIR COND SIG

I

Engine: After warming up, idle the
engine

Air Conditioner switch: “OFF”

OFF

Air Conditioner switch: “ON”
(Compressor operates.)

ON

IGN SW

I

Ignition switch: ON

,

OFF

ON

,

OFF

MAS AIR/FL SE

I

Engine: After warming up

I

Air Conditioner switch: “OFF”

I

Shift lever: “N”

I

No-load

Idle

1.5 - 2.1V

2,000 rpm

2.3 - 2.9V

ACT INJ TIMG

I

Engine: After warming up

I

Air Conditioner switch: “OFF”

I

Shift lever: “N”

I

No-load

Idle

−5.0° to −9.0°

2,000 rpm

−5.0° to −18.0°

DECELER F/CUT

I

Engine: After warming up

Idle

OFF

When accelerator pedal is released
quickly with engine speed at 3,000 rpm
or more.

ON

FUEL CUT S/V

I

Ignition switch: ON

,

OFF

ON

,

OFF

AIR COND RLY

I

Air Conditioner switch: OFF

,

ON

OFF

,

ON

GLOW RLY

I

Refer to EC-389.

TROUBLE DIAGNOSES

TD27Ti

EC-343

MONITOR ITEM

CONDITION

SPECIFICATION

EGRC SOL/V A

I

Engine: After warming up

I

Air Conditioner switch: “OFF”

I

Shift lever: “N”

I

No-load

Idle

ON

3,200 rpm

OFF

EGRC SOL/V B

I

Engine: After warming up

I

Air Conditioner switch: “OFF”

I

Shift lever: “N”

I

No-load

Idle

ON

3,000 rpm

OFF

THROT RLY

I

Engine: After warming up

I

Air Conditioner switch: “OFF”

I

Shift lever: “N”

I

No-load

Idle

ON

3,000 rpm

OFF

TROUBLE DIAGNOSES

TD27Ti

CONSULT-II Reference Value in Data Monitor
Mode (Cont’d)

EC-344