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Nissan Almera Tino V10 (2001 year). Manual - part 33

Monitored item [Unit]

ECM
input

signals

Main

signals

Description

Remarks

IDL A/V LEARN

Display the condition of idle air volume learn-
ing
YET ... Idle air volume learning has not been
performed yet.
CMPLT ... Idle air volume learning has
already been performed successfully.
INCMP ... Idle air volume learning has not
been performed successfully.

TRVL AFTER MIL
[km] or [Mile]

Distance traveled while MI is activated

VOLTAGE [V]

Voltage measured by the voltage probe.

PULSE
[msec] or [Hz] or [%]

Pulse width, frequency or duty cycle mea-
sured by the pulse probe.

Only “#” is displayed if item is
unable to be measured.

Figures with “#”s are temporary
ones. They are the same figures as
an actual piece of data which was
just previously measured.

NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.

DATA MONITOR (SPEC) MODE

NLEC0034S11

Monitored item [Unit]

ECM
input

signals

Main

signals

Description

Remarks

MAS A/F SE-B1 [V]

The signal voltage of the mass air flow sen-
sor specification is displayed.

When the engine is running, specifi-
cation range is indicated.

B/FUEL SCHDL
[msec]

“Base fuel schedule” indicates the fuel injec-
tion pulse width programmed into ECM, prior
to any learned on board correction.

When the engine is running, specifi-
cation range is indicated.

A/F ALPHA-B1 [%]

Indicates the mean value of the air-fuel ratio
feedback correction factor per cycle.

When the engine is running, specifi-
cation range is indicated.

This data also includes the data for
the air-fuel ratio learning control.

NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.

ACTIVE TEST MODE

NLEC0034S07

TEST ITEM

CONDITION

JUDGEMENT

CHECK ITEM (REMEDY)

FUEL INJEC-
TION

Engine: Return to the original
trouble condition

Change the amount of fuel injec-
tion using CONSULT-II.

If trouble symptom disappears, see
CHECK ITEM.

Harness and connector

Fuel injectors

Heated oxygen sensor 1 (front)

IGNITION TIM-
ING

Engine: Return to the original
trouble condition

Timing light: Set

Retard the ignition timing using
CONSULT-II.

If trouble symptom disappears, see
CHECK ITEM.

“Idle Air Volume Leaning” (Refer
to EC-57.)

Camshaft position sensor
(PHASE)

Crankshaft position sensor
(POS)

Engine component parts and
installing conditions

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

QG18DE

CONSULT-II (Cont’d)

EC-89

TEST ITEM

CONDITION

JUDGEMENT

CHECK ITEM (REMEDY)

IACV-AAC/V
OPENING

Engine: After warming up, idle
the engine.

Change the IACV-AAC valve
opening steps using CONSULT-
II.

Engine speed changes according
to the opening steps.

Harness and connector

IACV-AAC valve

POWER BAL-
ANCE

Engine: After warming up, idle
the engine.

Air conditioner switch “OFF”

Shift lever “N”

Cut off each injector signal one
at a time using CONSULT-II.

Engine runs rough or dies.

Harness and connector

Compression

Injectors

Power transistor

Spark plugs

Ignition coils

COOLING FAN

Ignition switch: ON

Turn the cooling fan “ON” and
“OFF” using CONSULT-II.

Cooling fan moves and stops.

Harness and connector

Cooling fan motor

ENG COOLANT
TEMP

Engine: Return to the original
trouble condition

Change the engine coolant tem-
perature indication using CON-
SULT-II.

If trouble symptom disappears, see
CHECK ITEM.

Harness and connector

Engine coolant temperature sen-
sor

Fuel injectors

FUEL PUMP
RELAY

Ignition switch: ON
(Engine stopped)

Turn the fuel pump relay “ON”
and “OFF” using CONSULT-II
and listen to operating sound.

Fuel pump relay makes the operat-
ing sound.

Harness and connector

Fuel pump relay

EGR VOL
CONT/V
(where fitted)

Engine: After warming up, idle
the engine.

Change the EGR volume control
valve opening step using CON-
SULT-II.

Engine speed changes according
to the opening step.

Harness and connector

EGR volume control valve

VALVE TIMING
SOL

Ignition switch: ON

Turn intake valve timing control
solenoid valve “ON” and “OFF”
using CONSULT-II and listen for
operating sound.

Intake valve timing control solenoid
valve makes an operating sound.

Harness and connector

Intake valve timing control sole-
noid valve

SWIRL CONT
SOL VALVE
(where fitted)

Ignition switch: ON

Turn solenoid valve “ON” and
“OFF” with CONSULT-II and lis-
ten for operating sound.

Solenoid valve makes an operating
sound.

Harness and connector

Solenoid valve

PURG VOL
CONT/V

Engine: After warming up, idle
the engine.

Change the EVAP canister purge
volume control solenoid valve
opening percent using CON-
SULT-II.

Engine speed changes according
to the opening percent.

Harness and connector

EVAP canister purge volume
control solenoid valve

DTC AND SRT CONFIRMATION MODE

NLEC0034S08

This mode is not available for models without Euro-OBD system.

SRT STATUS Mode

NLEC0034S0801

For details, refer to “SYSTEM READINESS TEST (SRT) CODE”,
EC-62.

SRT Work Support Mode

NLEC0034S0803

This mode enables a technician to drive a vehicle to set the SRT
while monitoring the SRT status.

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

QG18DE

CONSULT-II (Cont’d)

EC-90

DTC Work Support Mode

NLEC0034S0802

TEST MODE

TEST ITEM

CONDITION

REFERENCE PAGE

HEATED OXYGEN
SENSOR 1 (FRONT)

HO2S1 (B1) P0130

Refer to corresponding
trouble diagnosis for DTC.

HO2S1 (B1) P0131

HO2S1 (B1) P0132

HO2S1 (B1) P0133

HEATED OXYGEN
SENSOR 2 (REAR)

HO2S2 (B1) P0137

EC-227

HO2S2 (B1) P0138

EC-237

HO2S2 (B1) P0139

EC-246

EGR SYSTEM
(where fitted)

EGR SYSTEM P0400

EC-310

EGR SYSTEM P1402

EC-393

SEF705Y

SEF707X

REAL TIME DIAGNOSIS IN DATA MONITOR MODE
(RECORDING VEHICLE DATA)

NLEC0034S10

CONSULT-II has two kinds of triggers and they can be selected by
touching “SETTING” in “DATA MONITOR” mode.
1)

“AUTO TRIG” (Automatic trigger):

The malfunction will be identified on the CONSULT-II screen in
real time.
In other words, DTC/1st trip DTC and malfunction item will be
displayed if the malfunction is detected by ECM.
At the moment a malfunction is detected by ECM, “MONITOR”
in “DATA MONITOR” screen is changed to “Recording Data ...
xx%” as shown at left, and the data after the malfunction detec-
tion is recorded. Then when the percentage reached 100%,
“REAL-TIME DIAG” screen is displayed. If “STOP” is touched
on the screen during “ Recording Data ... xx%”, “REAL-TIME
DIAG” screen is also displayed.
The recording time after the malfunction detection and the
recording speed can be changed by “TRIGGER POINT” and
“Recording Speed”. Refer to CONSULT-II OPERATION
MANUAL.

“MANU TRIG” (Manual trigger):

DTC/1st trip DTC and malfunction item will not be displayed
automatically on CONSULT-II screen even though a malfunc-
tion is detected by ECM.
DATA MONITOR can be performed continuously even though
a malfunction is detected.

Use these triggers as follows:
1)

“AUTO TRIG”

While trying to detect the DTC/1st trip DTC by performing the
“DTC Confirmation Procedure”, be sure to select to “DATA
MONITOR (AUTO TRIG)” mode. You can confirm the malfunc-
tion at the moment it is detected.

While narrowing down the possible causes, CONSULT-II
should be set in “DATA MONITOR (AUTO TRIG)” mode, espe-
cially in case the incident is intermittent.

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

QG18DE

CONSULT-II (Cont’d)

EC-91

When you are inspecting the circuit by gently shaking (or twist-
ing) the suspicious connectors, components and harness in
the “DTC Confirmation Procedure”, the moment a malfunction
is found the DTC/1st trip DTC will be displayed. (Refer to
GI-22, “Incident Simulation Tests”.)

“MANU TRIG”

If the malfunction is displayed as soon as “DATA MONITOR”
is selected, reset CONSULT-II to “MANU TRIG”. By selecting
“MANU TRIG” you can monitor and store the data. The data
can be utilized for further diagnosis, such as a comparison with
the value for the normal operating condition.

SEF714Y

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

QG18DE

CONSULT-II (Cont’d)

EC-92

SEF139P

Generic Scan Tool (GST)

=NLEC0035

DESCRIPTION

NLEC0035S01

Generic Scan Tool (OBDII scan tool) complying with ISO15031-4
has 9 different functions explained on the next page.
ISO9141 is used as the protocol.
The name “GST” or “Generic Scan Tool” is used in this service
manual.

SEF094Y

GST INSPECTION PROCEDURE

NLEC0035S02

Turn ignition switch OFF.

Connect “GST” to data link connector. (Data link connector is
located under lower dash panel near the fuse box cover.)

SEF398S

Turn ignition switch ON.

Enter the program according to instruction on the screen or in
the operation manual.

(*: Regarding GST screens in this section, sample screens are
shown.)

SEF416S

Perform each diagnostic mode according to each service pro-
cedure.

For further information, see the GST Operation Manual of the
tool maker.

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

QG18DE

Generic Scan Tool (GST)

EC-93

FUNCTION

NLEC0035S03

Diagnostic test mode

Function

MODE 1

READINESS TESTS

This mode gains access to current emission-related data values, including analog
inputs and outputs, digital inputs and outputs, distance traveled while MI is activated
and system status information.

MODE 2

(FREEZE DATA)

This mode gains access to emission-related data value which were stored by ECM
during the freeze frame. (For details, refer to “Freeze Frame Data”, EC-85.)

MODE 3

DTCs

This mode gains access to emission-related power train trouble codes which were
stored by ECM.

MODE 4

CLEAR DIAG INFO

This mode can clear all emission-related diagnostic information. This includes:

Clear number of diagnostic trouble codes (MODE 1)

Clear diagnostic trouble codes (MODE 3)

Clear trouble code for freeze frame data (MODE 1)

Clear freeze frame data (MODE 2)

Reset status of system monitoring test (MODE 1)

Clear on board monitoring test results (MODE 6 and 7)

MODE 6

(ON BOARD TESTS)

This mode accesses the results of on board diagnostic monitoring tests of specific
components/systems that are not continuously monitored.

MODE 7

(ON BOARD TESTS)

This mode enables the off board test drive to obtain test results for emission-related
powertrain components/systems that are continuously monitored during normal driving
conditions.

MODE 8

—

This mode is not applicable on this vehicle.

MODE 9

(CALIBRATION ID)

This mode enables the off-board (External test equipment) to request specific vehicle
information such as Vehicle Identification Number (VIN) and Calibration IDs.

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

QG18DE

Generic Scan Tool (GST) (Cont’d)

EC-94

MEF036D

SEF233G

SEF234G

Introduction

NLEC0036

The engine has an ECM to control major systems such as fuel
control, ignition control, idle air control system, etc. The ECM
accepts input signals from sensors and instantly drives actuators.
It is essential that both input and output signals are proper and
stable. At the same time, it is important that there are no problems
such as vacuum leaks, fouled spark plugs, or other problems with
the engine.
It is much more difficult to diagnose a problem that occurs intermit-
tently rather than continuously. Most intermittent problems are
caused by poor electric connections or improper wiring. In this
case, careful checking of suspected circuits may help prevent the
replacement of good parts.
A visual check only may not find the cause of the problems. A road
test with CONSULT-II (or GST) or a circuit tester connected should
be performed. Follow the “Work Flow” on EC-97.
Before undertaking actual checks, take a few minutes to talk with
a customer who approaches with a driveability complaint. The cus-
tomer can supply good information about such problems, espe-
cially intermittent ones. Find out what symptoms are present and
under what conditions they occur. A “Diagnostic Worksheet” like the
example on next page should be used.
Start your diagnosis by looking for “conventional” problems first.
This will help troubleshoot driveability problems on an electronically
controlled engine vehicle.

SEF907L

DIAGNOSTIC WORKSHEET

NLEC0036S01

There are many operating conditions that lead to the malfunction
of engine components. A good grasp of such conditions can make
trouble-shooting faster and more accurate.
In general, each customer feels differently about a problem. It is
important to fully understand the symptoms or conditions for a
customer complaint.
Utilize a diagnostic worksheet like the one on the next page in order
to organize all the information for troubleshooting.
Some conditions may cause the malfunction indicator lamp to
come on steady or blink and DTC to be detected.
Example:
Vehicle ran out of fuel, which caused the engine to misfire.

TROUBLE DIAGNOSIS — INTRODUCTION

QG18DE

EC-95

Worksheet Sample

NLEC0036S0101

MTBL0311

TROUBLE DIAGNOSIS — INTRODUCTION

QG18DE

Introduction (Cont’d)

EC-96

Work Flow

NLEC0563

SEF510ZA

EC-123

If time data of “SELF-DIAG
RESULTS” is other than “0” or
“[1t]”, perform “TROUBLE DIAG-
NOSIS FOR INTERMITTENT
INCIDENT”, EC-145.

If the incident cannot be verified,
perform “TROUBLE DIAGNOSIS
FOR INTERMITTENT INCIDENT”,
EC-145.

If the on board diagnostic system
cannot be performed, check main
power supply and ground circuit.
Refer to “TROUBLE DIAGNOSIS
FOR POWER SUPPLY”, EC-146.

If malfunctioning part cannot be

detected, perform “TROUBLE
DIAGNOSIS FOR INTERMIT-
TENT INCIDENT”, EC-145.

EC-66

EC-141

TROUBLE DIAGNOSIS — INTRODUCTION

QG18DE

Work Flow

EC-97

DESCRIPTION FOR WORK FLOW

NLEC0563S01

STEP

DESCRIPTION

STEP I

Get detailed information about the conditions and the environment when the incident/symptom occurred using
the “DIAGNOSTIC WORK SHEET”, EC-96.

STEP II

Before confirming the concern, check and write down (print out using CONSULT-II or GST) the (1st trip) DTC
and the (1st trip) freeze frame data, then erase the DTC and the data. (Refer to EC-69, EC-71.) The (1st trip)
DTC and the (1st trip) freeze frame data can be used when duplicating the incident at STEP III & IV.
If the incident cannot be verified, perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-145.
Study the relationship between the cause, specified by (1st trip) DTC, and the symptom described by the cus-
tomer. (The “Symptom Matrix Chart” will be useful. See EC-124.)
Also check related service bulletins for information.

STEP III

Try to confirm the symptom and under what conditions the incident occurs.
The “DIAGNOSTIC WORK SHEET” and the freeze frame data are useful to verify the incident. Connect CON-
SULT-II to the vehicle in DATA MONITOR (AUTO TRIG) mode and check real time diagnosis results.
If the incident cannot be verified, perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-145.
If the malfunction code is detected, skip STEP IV and perform STEP V.

STEP IV

Try to detect the (1st trip) DTC by driving in (or performing) the “DTC Confirmation Procedure”. Check and read
the (1st trip) DTC and (1st trip) freeze frame data by using CONSULT-II or GST.
During the (1st trip) DTC verification, be sure to connect CONSULT-II to the vehicle in DATA MONITOR (AUTO
TRIG) mode and check real time diagnosis results.
If the incident cannot be verified, perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-145.
In case the “DTC Confirmation Procedure” is not available, perform the “Overall Function Check” instead. The
(1st trip) DTC cannot be displayed by this check, however, this simplified “check” is an effective alternative.
The “NG” result of the “Overall Function Check” is the same as the (1st trip) DTC detection.

STEP V

Take the appropriate action based on the results of STEP I through IV.
If the malfunction code is indicated, proceed to TROUBLE DIAGNOSIS FOR DTC PXXXX.
If the normal code is indicated, proceed refer to “BASIC INSPECTION”, EC-99. If CONSULT-II is available, per-
form “DATA MONITOR (SPEC)” mode with CONSULT-II and proceed to the “TROUBLE DIAGNOSIS-SPECIFI-
CATION VALUE”, EC-141. (If a malfunction is detected, proceed to “REPAIR/REPLACE”.) Then perform inspec-
tions according to the Symptom Matrix Chart. (Refer to EC-124.)

STEP VI

Identify where to begin diagnosis based on the relationship study between symptom and possible causes.
Inspect the system for mechanical binding, loose connectors or wiring damage using (tracing) “Harness Layouts”.
Gently shake the related connectors, components or wiring harness with CONSULT-II set in “DATA MONITOR
(AUTO TRIG)” mode.
Check the voltage of the related ECM terminals or monitor the output data from the related sensors with CON-
SULT-II. Refer to EC-133.
The “Diagnostic Procedure” in EC section contains a description based on open circuit inspection. A short circuit
inspection is also required for the circuit check in the Diagnostic Procedure. For details, refer to GI section
(“HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT”, “Circuit Inspection”).
Repair or replace the malfunction parts.
If malfunctioning part cannot be detected, perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”,
EC-145.

STEP VII

Once you have repaired the circuit or replaced a component, you need to run the engine in the same conditions
and circumstances which resulted in the customer’s initial complaint.
Perform the “DTC Confirmation Procedure” and confirm the normal code [DTC No. P0000] is detected. If the
incident is still detected in the final check, perform STEP VI by using a different method from the previous one.
Before returning the vehicle to the customer, be sure to erase the unnecessary (already fixed) (1st trip) DTC in
ECM. (Refer to EC-69, EC-71.)

TROUBLE DIAGNOSIS — INTRODUCTION

QG18DE

Work Flow (Cont’d)

EC-98

Basic Inspection

NLEC0564

MODELS WITH THROTTLE POSITION SWITCH AND
THROTTLE OPENER

NLEC0564S01

Precaution:
Perform Basic Inspection without electrical or mechanical
loads applied;

Headlamp switch is OFF,

On vehicle equipped with daytime light systems, set lighting
switch to the 1st position to light only small lamps.

Air conditioner switch is OFF,

Rear window defogger switch is OFF,

Steering wheel is in the straight-ahead position, etc.

INSPECTION START

1. Check service records for any recent repairs that may indicate a related problem, or a current need for scheduled

maintenance.

2. Open engine hood and check the following:

Harness connectors for improper connections

Vacuum hoses for splits, kinks and improper connections

Wiring for improper connections, pinches and cuts

Air cleaner clogging

Hoses and ducts for leaks

SEF983U

GO TO 2.

CHECK THROTTLE OPENER OPERATION-I

Confirm that there is a clearance between throttle drum and stopper.

SEF850Y

OK or NG

GO TO 4.

GO TO 3.

TROUBLE DIAGNOSIS — BASIC INSPECTION

QG18DE

Basic Inspection

EC-99

CHECK THROTTLE OPENER FIXING BOLTS

Check throttle opener fixing bolts for loosening.

OK or NG

Repair or replace throttle body assembly.

Retighten the fixing bolts.

CHECK THROTTLE OPENER OPERATION-II

1. Start engine and let it idle.
2. Confirm that throttle opener rod moves backward and there is a clearance between throttle drum and throttle opener

rod.

SEF850Y

OK or NG

GO TO 7.

GO TO 5.

CHECK VACUUM SOURCE FOR THROTTLE OPENER

1. Disconnect vacuum hose connected to throttle opener.
2. Check vacuum existance with engine running.

SEF155Y

OK or NG

Repair or replace throttle body assembly.

GO TO 6.

TROUBLE DIAGNOSIS — BASIC INSPECTION

QG18DE

Basic Inspection (Cont’d)

EC-100

CHECK VACUUM HOSE

1. Stop engine.
2. Remove the vacuum hose.
3. Check the vacuum hose for splits, kinks and clogging.

SEF109L

OK or NG

Clean vacuum port by blowing air.

Replace vacuum hose.

CHECK THROTTLE DRUM OPERATION

Confirm that throttle drum moves to contact the stopper.

SEF850Y

OK or NG

GO TO 10.

GO TO 8.

CHECK ACCELERATOR WIRE INSTALLATION

1. Stop engine.
2. Check accelerator wire for slack.

OK or NG

GO TO 9.

Adjust accelerator wire. Refer to FE-3, “Adjusting Accelerator Wire”.

CHECK THROTTLE VALVE OPERATION

1. Remove intake air ducts.
2. Check throttle valve operation when moving throttle drum by hand.

OK or NG

Retighten the throttle drum fixing nuts.

Clean the throttle body and throttle valve.

TROUBLE DIAGNOSIS — BASIC INSPECTION

QG18DE

Basic Inspection (Cont’d)

EC-101

CHECK THROTTLE POSITION SWITCH CLOSED POSITION-I

NOTE:
Always check ignition timing before performing the following.
1. Warm up engine to normal operating temperature.
2. Stop engine.
3. Remove the vacuum hose connected to the throttle opener.
4. Connect suitable vacuum hose to vacuum pump as shown below.

SEF793WA

5. Apply vacuum [more than −40.0 kPa (–400 mbar, −300 mmHg, −11.81 inHg)] until the throttle drum is free from the

throttle opener rod.

Models with CONSULT-II

GO TO 11.

Models without CON-
SULT-II

GO TO 15.

TROUBLE DIAGNOSIS — BASIC INSPECTION

QG18DE

Basic Inspection (Cont’d)

EC-102

CHECK THROTTLE POSITION SWITCH CLOSED POSITION-II

With CONSULT-II

1. Connect “CONSULT-II” to the data link connector and select “ENGINE” from the menu. Refer to EC-82.
2. Turn ignition switch “ON”.
3. Select “TP SW/TP SEN IDLE POSI ADJ” in “WORK SUPPORT” mode with CONSULT-II.
4. Read “CLSD THL/P SW” signal under the following conditions.

Insert a 0.05 mm (0.0020 in) and 0.15 mm (0.0059 in) feeler gauge alternately between stopper and throttle drum as
shown in the figure and check the signal.

SEF073X

SEF715Y

“CLSD THL/P SW” signal should remain “ON” while inserting 0.05 mm (0.0020 in) feeler gauge.
“CLSD THL/P SW” signal should remain “OFF” while inserting 0.15 mm (0.0059 in) feeler gauge.

OK or NG

GO TO 14.

GO TO 12.

TROUBLE DIAGNOSIS — BASIC INSPECTION

QG18DE

Basic Inspection (Cont’d)

EC-103

ADJUSTMENT THROTTLE POSITION SWITCH CLOSED POSITION-I

With CONSULT-II

1. Loosen throttle position sensor fixing bolts.
2. Confirm that proper vacuum is applied. Refer to test No. 10. During adjustment, vacuum should be applied.
3. Insert 0.05 mm (0.0020 in) feeler gauge between stopper and throttle drum as shown in the figure.

SEF073X

4. Turn throttle position sensor body counterclockwise until “CLSD THL/P SW” signal switches to “OFF”.

SEF863Y

GO TO 13.

TROUBLE DIAGNOSIS — BASIC INSPECTION

QG18DE

Basic Inspection (Cont’d)

EC-104

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