Nissan Almera Tino V10 (2001 year). Manual

P NO. INDEX FOR DTC

=NLEC0600S02

X: Applicable —: Not applicable

DTC

MI illumination

Items

(CONSULT-II screen terms)

Reference page

CONSULT-II

ECM

P0000

0505

—

NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.

—

P0100

0102

MASS AIR FLOW SEN

EC-1143

P0115

0103

COOLANT TEMP SEN

EC-1150

P0120

0403

ACCEL POS SENSOR

EC-1155

P0335

0407

CRANK POS SEN (TDC)

EC-1166

P0500

0104

VEHICLE SPEED SEN

EC-1172

P0571

0807

BRAKE SW

EC-1177

P1107

0802

ECM 10

EC-1185

P1180

0402

P9·FUEL TEMP SEN

EC-1187

P1202

1002

FUEL CUT SYSTEM2

EC-1194

P1217

0208

OVER HEAT

EC-1201

P1241

0707

P7·F/INJ TIMG FB

EC-1218

P1251

0704

P4·SPILL/V CIRC

EC-1225

P1337

0702

P2·TDC PULSE SIG

EC-1232

P1341

0701

P1·CAM POS SEN

EC-1239

P1600

0703

P3·PUMP COMM LINE

EC-1246

P1603

0901

ECM 12

EC-1253

P1607

0301

ECM 2

EC-1253

P1610 - P1615*

—

NATS MALFUNCTION

EC-1097

P1620

0902

ECM RLY

EC-1255

P1621

0903

—

ECM 15

EC-1260

P1660

0502

—

BATTERY VOLTAGE

EC-1262

P1690

0705

P5·PUMP C/MODULE

EC-1264

*: This DTC is displayed with CONSULT-II only.

TROUBLE DIAGNOSIS — INDEX

YD22DDTI

Alphabetical & P No. Index for DTC (Cont’d)

EC-1065

Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT
PRE-TENSIONER”

NLEC1263

The Supplemental Restraint System “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along with a seat
belt, help to reduce the risk or severity of injury to the driver and front passenger in a frontal collision. The
Supplemental Restraint System consists of air bag modules (located in the center of the steering wheel and
on the instrument panel on the passenger side), seat belt pre-tensioners, a diagnosis sensor unit, warning
lamp, wiring harness and spiral cable.
In addition to the supplemental air bag modules for a frontal collision, the supplemental side air bag used along
with the seat belt helps to reduce the risk or severity of injury to the driver and front passenger in a side col-
lision. The supplemental side air bag consists of air bag modules (located in the outer side of front seats),
satellite sensor, diagnosis sensor unit (one of components of supplemental air bags for a frontal collision),
wiring harness, warning lamp (one of components of supplemental air bags for a frontal collision). Information
necessary to service the system safely is included in the RS section of this Service Manual.

WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be performed
by an authorized NISSAN dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified with yellow harness connector (and with
yellow harness protector or yellow insulation tape before the harness connectors).

SEF706Y

Engine Fuel & Emission Control System

NLEC0602

Always use a 12 volt battery as power source.

Do not attempt to disconnect battery cable while engine is
running.

Before connecting or disconnecting the ECM harness
connector, turn ignition switch OFF and disconnect nega-
tive battery terminal. Failure to do so may damage the
ECM because battery voltage is applied to ECM even if
ignition switch is turned off.

Before removing parts, turn off ignition switch and then
disconnect battery ground cable.

SEC220B

Do not disassemble ECM.

If a battery terminal is disconnected, the memory will
return to the ECM value.
The ECM will now start to self-control at its initial value.
Engine operation can vary slightly when the terminal is
disconnected. However, this is not an indication of a prob-
lem. Do not replace parts because of a slight variation.

PRECAUTIONS

YD22DDTI

Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TENSIONER”

EC-1066

SEF883Y

When ECM is removed for inspection, make sure to
ground the ECM mainframe.

SEF881Y

When connecting ECM harness connectors, push in both
sides of the connector until you hear a click. Maneuver the
lever until you hear the three connectors on the inside
click. Refer to the figure at left.

SEF291H

When connecting or disconnecting pin connectors into or
from ECM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on ECM
pin terminal, when connecting pin connectors.

Securely connect ECM harness connectors.
A poor connection can cause an extremely high (surge)
voltage to develop in the circuit, thus resulting in damage
to ICs.

Keep ECM harness at least 10 cm (3.9 in) away from adja-
cent harnesses, to prevent an ECM system malfunction
due to receiving external noise, degraded operation of
ICs, etc.

Keep ECM parts and harnesses dry.

MEF040D

Before replacing ECM, perform Terminals and Reference
Value inspection and make sure ECM functions properly.
Refer to EC-1129.

PRECAUTIONS

YD22DDTI

Engine Fuel & Emission Control System (Cont’d)

EC-1067

SAT652J

If MI illuminates or blinks irregularly when engine is
running, water may have accumulated in fuel filter. Drain
water from fuel filter. If this does not correct the problem,
perform specified trouble diagnostic procedures.

After performing each TROUBLE DIAGNOSIS, perform
“DTC Confirmation Procedure” or “Overall Function
Check”.
The DTC should not be displayed in the “ DTC Confirma-
tion Procedure” if the repair is completed. The “Overall
Function Check” should be a good result if the repair is
completed.

SEF348N

When measuring ECM signals with a circuit tester, never
allow the two tester probes to contact.
Accidental contact of probes will cause a short circuit and
damage the ECM power transistor.

Do not use ECM ground terminals when measuring input/
output voltage. Doing so may result in damage to the
ECM’s transistor. Use a ground other than ECM terminals,
such as the ground.

Install the break-out box between ECM and ECM harness
connectors when measuring ECM input/output voltage.

SEF437Y

Do not disconnect electronic control fuel injection pump
harness connector with engine running.

Do not disassemble electronic control fuel injection pump.
If NG, take proper action.

Do not disassemble injection nozzle.
If NG, replace injection nozzle.

Even a slight leak in the air intake system can cause seri-
ous problems.

Do not shock or jar the crankshaft position sensor (TDC).

SEF709Y

Do not depress accelerator pedal when starting.

Immediately after starting, do not rev up engine unneces-
sarily.

Do not rev up engine just prior to shutdown.

PRECAUTIONS

YD22DDTI

Engine Fuel & Emission Control System (Cont’d)

EC-1068

SEF708Y

When installing C.B. ham radio or a mobile phone, be sure
to observe the following as it may adversely affect elec-
tronic control systems depending on its installation loca-
tion.

1) Keep the antenna as far as possible away from the ECM.
2) Keep the antenna feeder line more than 20 cm (7.9 in)

away from the harness of electronic controls.
Do not let them run parallel for a long distance.

3) Adjust the antenna and feeder line so that the standing-

wave ratio can be kept smaller.

4) Be sure to ground the radio to vehicle body.

Wiring Diagrams and Trouble Diagnosis

NLEC0604

When you read Wiring diagrams, refer to the following:

GI-11, “HOW TO READ WIRING DIAGRAMS”

EL-10, “POWER SUPPLY ROUTING” for power distribution circuit

When you perform trouble diagnosis, refer to the following:

GI-32, “HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSIS”

GI-21, “HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT”

PRECAUTIONS

YD22DDTI

Engine Fuel & Emission Control System (Cont’d)

EC-1069

System Chart

NLEC0611

Input (Sensor)

ECM Function

Output (Actuator)

Electronic control fuel injection pump

Crankshaft position sensor (TDC)

Engine coolant temperature sensor

Accelerator position sensor

Accelerator position switch

Park/Neutral position (PNP) switch
(where fitted)

Ignition switch

Battery voltage

Vehicle speed sensor

Air conditioner switch

Mass air flow sensor

Stop lamp switch

Fuel injection control

Electronic control fuel injection
pump

Fuel injection timing control

Electronic control fuel injection
pump

Fuel cut control

Electronic control fuel injection
pump

Glow control system

Glow relay & glow lamp

On board diagnostic system

MI (On the instrument panel)

EGR volume control

EGR volume control valve

Swirl control valve control

Swirl control valve control solenoid
valve

Cooling fan control

Cooling fan relay

Air conditioning cut control

Air conditioner relay

ENGINE AND EMISSION CONTROL OVERALL SYSTEM

YD22DDTI

System Chart

EC-1078

Fuel Injection Control System

DESCRIPTION

NLEC0612

System Description

NLEC0612S01

Three types of fuel injection control are provided to accommodate engine operating conditions; normal control,
idle control and start control. The ECM determines the appropriate fuel injection control. Under each control,
the amount of fuel injected is compensated to improve engine performance.
Pulse signals are exchanged between ECM and electronic control fuel injection pump (control unit is built-in).
The fuel injection pump control unit performs duty control on the spill valve (built into the fuel injection pump)
according to the input signals to compensate the amount of fuel injected to the preset value.

Start Control

NLEC0612S02

Input/Output Signal Chart

NLEC0612S0201

Sensor

Input Signal to ECM

ECM Function

Actuator

Engine coolant temperature sensor

Engine coolant temperature

Fuel injection
control (start
control)

Electronic control fuel
injection pump

Crankshaft position sensor (TDC)

Engine speed

Ignition switch

Start signal

SEF648S

When the ECM receives a start signal from the ignition switch, the ECM adapts the fuel injection system for
the start control. The amount of fuel injected at engine starting is a preset program value in the ECM. The
program is determined by the engine speed and engine coolant temperature.
For better startability under cool engine conditions, the lower the coolant temperature becomes, the greater
the amount of fuel injected. The ECM ends the start control when the engine speed reaches the specific value,
and shifts the control to the normal or idle control.

Idle Control

NLEC0612S03

Input/Output Signal Chart

NLEC0612S0301

Sensor

Input Signal to ECM

ECM Function

Actuator

Engine coolant temperature sensor

Engine coolant temperature

Fuel injection
control (Idle con-
trol)

Electronic control fuel
injection pump

Crankshaft position sensor (TDC)

Engine speed

Battery

Battery voltage

Accelerator position switch

Idle position

Vehicle speed sensor

Vehicle speed

Air conditioner switch

Air conditioner signal

When the ECM determines that the engine speed is at idle, the fuel injection system is adapted for the idle
control. The ECM regulates the amount of fuel injected corresponding to changes in load applied to the engine
to keep engine speed constant. The ECM also provides the system with a fast idle control in response to the
engine coolant temperature signal.

ENGINE AND EMISSION BASIC CONTROL SYSTEM

DESCRIPTION

YD22DDTI

Fuel Injection Control System

EC-1079

Normal Control

NLEC0612S04

Input/Output Signal Chart

NLEC0612S0401

Sensor

Input Signal to ECM

ECM Function

Actuator

Crankshaft position sensor (TDC)

Engine speed

Fuel injection
control (Normal
control)

Electronic control fuel
injection pump

Accelerator position sensor

Accelerator position

SEF649S

The amount of fuel injected under normal driving conditions is determined according to sensor signals. The
crankshaft position sensor (TDC) detects engine speed and the accelerator position sensor detects accelera-
tor position. These sensors send signals to the ECM.
The fuel injection data, predetermined by correlation between various engine speeds and accelerator positions,
are stored in the ECM memory, forming a map. The ECM determines the optimal amount of fuel to be injected
using the sensor signals in comparison with the map.

Maximum Amount Control

NLEC0612S05

Input/Output Signal Chart

NLEC0612S0501

Sensor

Input Signal to ECM

ECM Function

Actuator

Mass air flow sensor

Amount of intake air

Fuel injection
control (Maxi-
mum amount
control)

Electronic control fuel
injection pump

Engine coolnat temperature sensor

Engine coolant temperature

Crankshaft position sensor (TDC)

Engine speed

Accelerator position sensor

Accelerator position

The maximum injection amount is controlled to an optimum by the engine speed, intake air amount, engine
coolant temperature, and accelerator opening in accordance with the driving conditions.
This prevents the oversupply of the injection amount caused by decreased air density at a high altitude or
during a system failure.

Deceleration Control

NLEC0612S06

Input/Output Signal Chart

NLEC0612S0601

Sensor

Input Signal to ECM

ECM Function

Actuator

Accelerator position switch

Accelerator position

Fuel injection
control (Decel-
eration control)

Electronic control fuel
injection pump

Crankshaft position sensor (TDC)

Engine speed

The ECM sends a fuel cut signal to the electronic control fuel injection pump during deceleration for better
fuel efficiency. The ECM determines the time of deceleration according to signals from the accelerator posi-
tion switch and crankshaft position sensor (TDC).

Fuel Injection Timing Control System

DESCRIPTION

NLEC0613

The target fuel injection timing in accordance with the engine speed and the fuel injection amount are recorded
as a map in the ECM beforehand. The ECM and the injection pump control unit exchange signals and per-
form feedback control for optimum injection timing in accordance with the map.

ENGINE AND EMISSION BASIC CONTROL SYSTEM

DESCRIPTION

YD22DDTI

Fuel Injection Control System (Cont’d)

EC-1080

Nissan Almera Tino V10 (2001 year). Manual - part 94