Almera Tino V10 (2003 year). Manual — part 66

ON BOARD DIAGNOSTIC (OBD) SYSTEM

EC-75

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RELATIONSHIP BETWEEN MI, DTC, 1ST TRIP DTC AND DRIVING PATTERNS FOR “MISFIRE”
<EXHAUST QUALITY DETERIORATION>, “FUEL INJECTION SYSTEM”

*1: When the same malfunction is

detected in two consecutive trips, MI
will light up.

*2: MI will go off after vehicle is driven 3

times (pattern B) without any mal-
functions.

*3: When the same malfunction is

detected in two consecutive trips, the
DTC and the freeze frame data will
be stored in ECM.

*4: The DTC and the freeze frame data

will not be displayed any longer after
vehicle is driven 80 times (pattern C)
without the same malfunction. (The
DTC and the freeze frame data still
remain in ECM.)

*5: When a malfunction is detected for

the first time, the 1st trip DTC and
the 1st trip freeze frame data will be
stored in ECM.

*6: The 1st trip DTC and the 1st trip

freeze frame data will be cleared at
the moment OK is detected.

*7: When the same malfunction is

detected in the 2nd trip, the 1st trip
freeze frame data will be cleared.

*8: 1st trip DTC will be cleared when

vehicle is driven once (pattern C)
without the same malfunction after
DTC is stored in ECM.

SEF392SA

EC-76

[QG (WITH EURO-OBD)]

ON BOARD DIAGNOSTIC (OBD) SYSTEM

EXPLANATION FOR DRIVING PATTERNS FOR “MISFIRE <EXHAUST QUALITY DETERIORA-
TION>”, “FUEL INJECTION SYSTEM”
<Driving Pattern B>

Driving pattern B means the vehicle operation as follows:
All components and systems should be monitored at least once by the OBD system.

●

The B counter will be cleared when the malfunction is detected once regardless of the driving pattern.

●

The B counter will be counted up when driving pattern B is satisfied without any malfunction.

●

The MI will go off when the B counter reaches 3. (*2 in “OBD SYSTEM OPERATION CHART”)

<Driving Pattern C>

Driving pattern C means the vehicle operation as follows:
The following conditions should be satisfied at the same time:
Engine speed: (Engine speed in the freeze frame data)

±

375 rpm

Calculated load value: (Calculated load value in the freeze frame data) x (1

±

0.1) [%]

Engine coolant temperature (T) condition:

●

When the freeze frame data shows lower than 70

°

C (158

°

F), “T” should be lower than 70

°

C (158

°

F).

●

When the freeze frame data shows higher than or equal to 70

°

C (158

°

F), “T” should be higher than or

equal to 70

°

C (158

°

F).

Example:
If the stored freeze frame data is as follows:
Engine speed: 850 rpm, Calculated load value: 30%, Engine coolant temperature: 80

°

C (176

°

F)

To be satisfied with driving pattern C, the vehicle should run under the following conditions:
Engine speed: 475 - 1,225 rpm, Calculated load value: 27 - 33%, Engine coolant temperature: more than 70

°

C

(158

°

F)

●

The C counter will be cleared when the malfunction is detected regardless of vehicle conditions above.

●

The C counter will be counted up when vehicle conditions above is satisfied without the same malfunction.

●

The DTC will not be displayed after C counter reaches 80.

●

The 1st trip DTC will be cleared when C counter is counted once without the same malfunction after DTC
is stored in ECM.

ON BOARD DIAGNOSTIC (OBD) SYSTEM

EC-77

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RELATIONSHIP BETWEEN MI, DTC, 1ST TRIP DTC AND DRIVING PATTERNS EXCEPT FOR
“MISFIRE <EXHAUST QUALITY DETERIORATION>”, “FUEL INJECTION SYSTEM”

*1: When the same malfunction is

detected in two consecutive trips, MI
will light up.

*2: MI will go off after vehicle is driven 3

times (pattern B) without any mal-
functions.

*3: When the same malfunction is

detected in two consecutive trips, the
DTC and the freeze frame data will
be stored in ECM.

*4: The DTC and the freeze frame data

will not be displayed any longer after
vehicle is driven 40 times (pattern A)
without the same malfunction.
(The DTC and the freeze frame data
still remain in ECM.)

*5: When a malfunction is detected for

the first time, the 1st trip DTC and
the 1st trip freeze frame data will be
stored in ECM.

*6: 1st trip DTC will be cleared after

vehicle is driven once (pattern B)
without the same malfunction.

*7: When the same malfunction is

detected in the 2nd trip, the 1st trip
freeze frame data will be cleared.

SEF393SA

EC-78

[QG (WITH EURO-OBD)]

ON BOARD DIAGNOSTIC (OBD) SYSTEM

EXPLANATION FOR DRIVING PATTERNS EXCEPT FOR “MISFIRE <EXHAUST QUALITY
DETERIORATION>”, “FUEL INJECTION SYSTEM”
<Driving Pattern A>

●

The A counter will be cleared when the malfunction is detected regardless of (1) - (4).

●

The A counter will be counted up when (1) - (4) are satisfied without the same malfunction.

●

The DTC will not be displayed after the A counter reaches 40.

<Driving Pattern B>

Driving pattern B means the vehicle operation as follows:
All components and systems should be monitored at least once by the OBD system.

●

The B counter will be cleared when the malfunction is detected once regardless of the driving pattern.

●

The B counter will be counted up when driving pattern B is satisfied without any malfunctions.

●

The MI will go off when the B counter reaches 3 (*2 in “OBD SYSTEM OPERATION CHART”).

AEC574

TROUBLE DIAGNOSIS

EC-79

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TROUBLE DIAGNOSIS

PFP:00004

Trouble Diagnosis Introduction

EBS00QGV

INTRODUCTION

The engine has an ECM to control major systems such as fuel con-
trol, ignition control, idle air control system, etc. The ECM accepts
input signals from sensors and instantly drives actuators. It is essen-
tial that both input and output signals are proper and stable. At the
same time, it is important that there are no malfunctions such as vac-
uum leaks, fouled spark plugs, or other malfunctions with the engine.
It is much more difficult to diagnose a incident that occurs intermit-
tently rather than continuously. Most intermittent incidents are
caused by poor electric connections or improper wiring. In this case,
careful checking of suspected circuits may help prevent the replace-
ment of good parts.
A visual check only may not find the cause of the incidents. A road
test with CONSULT-II (or GST) or a circuit tester connected should
be performed. Follow the “Work Flow” on

EC-80

.

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 incidents, especially
intermittent ones. Find out what symptoms are present and under
what conditions they occur. A “Diagnostic Worksheet” like the exam-
ple on

EC-83

should be used.

Start your diagnosis by looking for “conventional” malfunctions first.
This will help troubleshoot driveability malfunctions on an electroni-
cally controlled engine vehicle.

MEF036D

SEF233G

SEF234G

EC-80

[QG (WITH EURO-OBD)]

TROUBLE DIAGNOSIS

WORK FLOW
Flow Chart

*1: If time data of “SELF-DIAG

RESULTS” is other than “0” or “[1t]”,
perform

EC-138, "TROUBLE DIAG-

NOSIS FOR INTERMITTENT INCI-
DENT"

.

*2: If time data of “SELF-DIAG

RESULTS” is other than “0” or “[1t]”,
perform

EC-138, "TROUBLE DIAG-

NOSIS FOR INTERMITTENT INCI-
DENT"

.

*3: If the on board diagnostic system

cannot be performed, check main
power supply and ground circuit.
Refer to

EC-139, "POWER SUPPLY

CIRCUIT FOR ECM"

.

*4: If malfunctioning part cannot be

detected, perform

EC-138, "TROU-

BLE DIAGNOSIS FOR INTERMIT-
TENT INCIDENT"

.

*5:

EC-66, "Driving Pattern"

*6:

EC-134, "TROUBLE DIAGNOSIS -
SPECIFICATION VALUE"

MBIB0159E

TROUBLE DIAGNOSIS

EC-81

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EC

Description for Work Flow

STEP

DESCRIPTION

STEP I

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

EC-82

.

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-68, "HOW TO ERASE EMISSION-

RELATED DIAGNOSTIC INFORMATION"

.) 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

EC-138, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

.

Study the relationship between the cause, specified by (1st trip) DTC, and the symptom described by the customer.
(The “Symptom Matrix Chart” will be useful. See

EC-92

.)

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 CONSULT-II
to the vehicle in DATA MONITOR (AUTO TRIG) mode and check real time diagnosis results.
If the incident cannot be verified, perform

EC-138, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

.

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

EC-138, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

.

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 to the BASIC INSPECTION. (Refer to

EC-87

.) If COSULT-II is available, per-

form “DATA MONITOR (SPEC)” mode with CONSULT-II and proceed to the “TOROUBLE DIAGNOSIS – SPECIFI-
CATION VALUE”. (Refer to

EC-134

.) (If malfunction is detected, proceed to “PERAIR/REPLACE”.) Then perform

inspections according to the Symptom Matrix Chart. (Refer to

EC-92

.)

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 CONSULT-II.
Refer to

EC-102

,

EC-128

.

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 “Circuit Inspection” in
“HOW TO PERFORM EFFICIENT DIAGNOSES FOR AN ELECTRICAL INCIDENT”, GI-21.
Repair or replace the malfunction parts.
If malfunctioning part cannot be detected, perform

EC-138, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-

DENT"

.

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 method different from the previous one.
Before returning the vehicle to the customer, be sure to erase the unnecessary (already fixed) (1st trip) DTC in ECM
and TCM (Transmission control module). (Refer to

EC-68, "HOW TO ERASE EMISSION-RELATED DIAGNOSTIC

INFORMATION"

and

AT-39, "HOW TO ERASE DTC"

.)

EC-82

[QG (WITH EURO-OBD)]

TROUBLE DIAGNOSIS

DIAGNOSTIC WORKSHEET
Description

There are many operating conditions that lead to the malfunction of
engine components. A good grasp of such conditions can make trou-
bleshooting faster and more accurate.
In general, each customer feels differently about a incident. It is
important to fully understand the symptoms or conditions for a cus-
tomer 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 MI to come on steady or blink and
DTC to be detected. Examples:

●

Vehicle ran out of fuel, which caused the engine to misfire.

●

Fuel filler cap was left off or incorrectly screwed on, allowing fuel
to evaporate into the atmosphere.

SEF907L

TROUBLE DIAGNOSIS

EC-83

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Worksheet Sample

DTC Inspection Priority Chart

EBS00QGW

If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.

NOTE:
If DTC U1000 and/or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC
U1000 and U1001. Refer to

EC-145, "DTC U1000, U1001 CAN COMMUNICATION LINE"

.

MTBL0017

EC-84

[QG (WITH EURO-OBD)]

TROUBLE DIAGNOSIS

M/T MODELS

Priority

Detected items (DTC)

1

●

U1001 CAN communication line

●

P0102 P0103 Mass air flow sensor

●

P0112 P0113 Intake air temperature sensor

●

P0117 P0118 Engine coolant temperature sensor

●

P0221 P0222 P0223 P1223 P1224 P1225 P1226 P1229 Throttle position sensor

●

P0226 P0227 P0228 P1227 P1228 Accelerator pedal position sensor

●

P0327 P0328 Knock sensor

●

P0335 Crankshaft position sensor (POS)

●

P0340 Camshaft position sensor (PHASE)

●

P0500 Vehicle speed sensor

●

P0605 ECM

●

P1610-P1615 NATS

●

P1706 Park/Neutral position (PNP) switch

2

●

P0031 P0032 Heated oxygen sensor 1 heater

●

P0037 P0038 Heated oxygen sensor 2 heater

●

P0132 P0133 P0134 P1143 P1144 Heated oxygen sensor 1

●

P0138 P0139 P1146 P1147 Heated oxygen sensor 2

●

P0550 Power steering pressure sensor

●

P1065 ECM power supply

●

P1111 Intake valve timing control solenoid valve

●

P1122 Electric throttle control function

●

P1124 P1126 P1128 Electric throttle control actuator

●

P1211 TCS control unit

●

P1212 TCS communication line

●

P1805 Brake switch

3

●

P0011 Intake valve timing control

●

P0171 P0172 Fuel injection system function

●

P0300 - P0304 Misfire

●

P0420 Three way catalyst function

●

P0444 EVAP canister purge volume control solenoid valve

●

P1121 Electric throttle control actuator

●

P1217 Engine over temperature (OVERHEAT)

TROUBLE DIAGNOSIS

EC-85

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A/T MODELS

Fail-safe Chart

EBS00QGX

●

When the DTC listed below is detected, the ECM enters fail-safe mode and the MI lights up.

Priority

Detected items (DTC)

1

●

U1000 U1001 CAN communication line

●

P0102 P0103 Mass air flow sensor

●

P0112 P0113 Intake air temperature sensor

●

P0117 P0118 Engine coolant temperature sensor

●

P0221 P0222 P0223 P1223 P1224 P1225 P1226 P1229 Throttle position sensor

●

P0226 P0227 P0228 P1227 P1228 Accelerator pedal position sensor

●

P0327 P0328 Knock sensor

●

P0335 Crankshaft position sensor (POS)

●

P0340 Camshaft position sensor (PHASE)

●

P0500 Vehicle speed sensor

●

P0605 ECM

●

P0705 Park/Neutral position (PNP) switch

●

P1610-P1615 NATS

●

P1706 Park/Neutral position (PNP) switch

2

●

P0031 P0032 P0051 P0052 Heated oxygen sensor 1 heater

●

P0037 P0038 P0057 P0058 Heated oxygen sensor 2 heater

●

P0132 P0133 P0134 P0152 P0153 P0154 P1143 P1144 P1163 P1164 Heated oxygen sensor 1

●

P0138 P0139 P0158 P0159 P1146 P1147 P1166 P1167 Heated oxygen sensor 2

●

P0550 Power steering pressure sensor

●

P0710-P0725, P0740-P0755, P1705 P1760 A/T related sensors and solenoid valves

●

P1065 ECM power supply

●

P1111 Intake valve timing control solenoid valve

●

P1122 Electric throttle control function

●

P1124 P1126 P1128 Electric throttle control actuator

●

P1211 TCS control unit

●

P1212 TCS communication line

●

P1805 Brake switch

3

●

P0011 Intake valve timing control

●

P0171 P0172 P0174 P0175 Fuel injection system function

●

P0300 - P0304 Misfire

●

P0420 P0430 Three way catalyst function

●

P0444 EVAP canister purge volume control solenoid valve

●

P0731-P0734 A/T function

●

P1121 Electric throttle control actuator

●

P1217 Engine over temperature (OVERHEAT)

DTC No.

Detected items

Engine operating condition in fail-safe mode

P0102
P0103

Mass air flow sensor circuit

Engine speed will not rise more than 2,400 rpm due to the fuel cut.

EC-86

[QG (WITH EURO-OBD)]

TROUBLE DIAGNOSIS

●

When there is an open circuit on MI circuit, the ECM can not warn the driver by lighting up MI when there
is malfunction on engine control system.
Therefore, when electrical controlled throttle and part of ECM related diagnoses are continuously detected
as NG for 5 trips, ECM warns the driver that engine control system has trouble and MI circuit is open by
means of operating fail-safe function.
The fail-safe function also operate when above diagnoses except MI circuit are detected and demands
the driver to repair the trouble.

P0117
P0118

Engine coolant tempera-
ture sensor circuit

Engine coolant temperature will be determined by ECM based on the time after turning
ignition switch “ON” or “START”.
CONSULT-II displays the engine coolant temperature decided by ECM.

Condition

Engine coolant temperature decided (CONSULT-

II display)

Just as ignition switch is turned
ON or Start

40

°

C (104

°

F)

More than approx. 4 minutes after
ignition ON or Start

80

°

C (176

°

F)

Except as shown above

40 - 80

°

C (104 - 176

°

F)

(Depends on the time)

When the fail-safe system for engine coolant temperature sensor is activated, the cool-
ing fan operates while engine is running.

P0221
P0222
P0223
P1223
P1224

Throttle position sensor

The ECM controls the electric throttle control actuator in regulating the throttle opening
in order for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the nor-
mal condition.
So, the acceleration will be poor.

P0226
P0227
P0228
P1227
P1228

Accelerator pedal position
sensor

The ECM controls the electric throttle control actuator in regulating the throttle opening
in order for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the nor-
mal condition.
So, the acceleration will be poor.

P1121

Electric throttle control actu-
ator
(ECM detect the throttle
valve is stuck open.)

While the vehicle is driving, it slows down gradually by fuel cut. After the vehicle stops,
the engine stalls.
The engine can restart in “N” or “P” position, and engine speed will not exceed 1,000
rpm or more.

P1122

Electric throttle control func-
tion

ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.

P1124
P1126

Throttle control motor relay

ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.

P1128

Throttle control motor

ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring

P1229

Sensor power supply

ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.

DTC No.

Detected items

Engine operating condition in fail-safe mode

Engine operating condition in fail-safe mode

Engine speed will not rise more than 2,500 rpm due to the fuel cut

TROUBLE DIAGNOSIS

EC-87

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EC

Basic Inspection

EBS00QGY

1.

INSPECTION START

1.

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

2.

Open engine hood and check the following:

–

Harness connectors for improper connections

–

Wiring harness for improper connections, pinches and cut

–

Vacuum hoses for splits, kinks and improper connections

–

Hoses and ducts for leaks

–

Air cleaner clogging

–

Gasket

3.

Confirm that electrical or mechanical loads are not applied.

–

Headlamp switch is OFF.

–

Air conditioner switch is OFF.

–

Rear window defogger switch is OFF.

–

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

4.

Start engine and warm it up until engine coolant temperature
indicator points the middle of gauge.
Ensure engine stays below 1,000 rpm.

5.

Run engine at about 2,000 rpm for about 2 minutes under no-
load.

6.

Make sure that no DTC is displayed with CONSULT-II or GST.

OK or NG

OK

>> GO TO 3.

NG

>> GO TO 2.

2.

REPAIR OR REPLACE

Repair or replace components as necessary according to corresponding “Diagnostic Procedure”.

>> GO TO 3.

SEF983U

SEF976U

SEF977U

EC-88

[QG (WITH EURO-OBD)]

TROUBLE DIAGNOSIS

3.

CHECK TARGET IDLE SPEED

With CONSULT-II

1.

Run engine at about 2,000 rpm for about 2 minutes under no-load.

2.

Rev engine (2,000 to 3,000 rpm) two or three times under no-
load, then run engine at idle speed for about 1 minute.

3.

Read idle speed in “DATA MONITOR” mode with CONSULT-II.

Without CONSULT-II

1.

Run engine at about 2,000 rpm for about 2 minutes under no-load.

2.

Rev engine (2,000 to 3,000 rpm) two or three times under no-load, then run engine at idle speed for about
1 minute.

3.

Check idle speed.

OK or NG

OK

>> GO TO 10.

NG

>> GO TO 4.

4.

PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING

1.

Stop engine.

2.

Perform

EC-49, "Accelerator Pedal Released Position Learning"

.

>> GO TO 5.

5.

PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

Perform

EC-49, "Throttle Valve Closed Position Learning"

.

>> GO TO 6.

SEF978U

M/T: 700

±

50 rpm (in“Neutral” position)

A/T: 800

±

50 rpm (in “P” or “N” position)

SEF058Y

M/T: 700

±

50 rpm (in “Neutral” position)

A/T: 800

±

50 rpm (in “P” or “N” position)

TROUBLE DIAGNOSIS

EC-89

[QG (WITH EURO-OBD)]

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EC

6.

PERFORM IDLE AIR VOLUME LEARNING

Refer to

EC-49, "Idle Air Volume Learning"

.

Yes or No

Yes

>> GO TO 7.

No

>> 1. Follow the construction of “Idle Air Volume Learning”.

2. GO TO 4.

7.

CHECK TARGET IDLE SPEED AGAIN

With CONSULT-II

1.

Start engine and warm it up to normal operating temperature.

2.

Read idle speed in “DATA MONITOR” mode with CONSULT-II.

Without CONSULT-II

1.

Start engine and warm it up to normal operating temperature.

2.

Check idle speed.

OK or NG

OK

>> GO TO 10.

NG

>> GO TO 8.

8.

DETECT MALFUNCTIONING PART

Check the following.

●

Check camshaft position sensor (PHASE) and circuit. Refer to

EC-349

.

●

Check crankshaft position sensor (POS) and circuit. Refer to

EC-343

.

OK or NG

OK

>> GO TO 9.

NG

>> 1. Repair or replace.

2. GO TO 4.

9.

CHECK ECM FUNCTION

1.

Substitute another known-good ECM to check ECM function. (ECM may be the cause of a incident, but
this is the rarely the case.)

2.

Perform initialization of NATS system and registration of NATS ignition key IDs. Refer to

EC-70, "NATS

(Nissan Anti-theft System)"

.

>> GO TO 4.

Is Idle Air Volume Learning carried out successfully?

M/T: 700

±

50 rpm (in “Neutral” position)

A/T: 800

±

50 rpm (in “P” or “N” position)

M/T: 700

±

50 rpm (in “Neutral” position)

A/T: 800

±

50 rpm (in “P” or “N” position)

EC-90

[QG (WITH EURO-OBD)]

TROUBLE DIAGNOSIS

10.

CHECK IGNITION TIMING

1.

Run engine at idle.

2.

Check ignition timing with a timing light.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 11.

11.

PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING

1.

Stop engine.

2.

Perform

EC-49, "Accelerator Pedal Released Position Learning"

.

>> GO TO 12.

12.

PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

Perform

EC-49, "Throttle Valve Closed Position Learning"

.

>> GO TO 13.

13.

PERFORM IDLE AIR VOLUME LEARNING

Refer to

EC-49, "Idle Air Volume Learning"

.

Yes or No

Yes

>> GO TO 14.

No

>> 1. Follow the construction of “Idle Air Volume Learning”.

2. GO TO 4.

14.

CHECK TARGET IDLE SPEED AGAIN

With CONSULT-II

1.

Start engine and warm it up to normal operating temperature.

2.

Read idle speed in “DATA MONITOR” mode with CONSULT-II.

Without CONSULT-II

1.

Start engine and warm it up to normal operating temperature.

2.

Check idle speed.

OK or NG

OK

>> GO TO 15.

NG

>> GO TO 17.

M/T: 8

±

5

°

BTDC (in “Neutral” position)

A/T: 10

±

5

°

BTDC (in “P” or “N” position)

Is Idle Air Volume Learning carried out successfully?

M/T: 700

±

50 rpm (in “Neutral” position)

A/T: 800

±

50 rpm (in “P” or “N” position)

M/T: 700

±

50 rpm (in “Neutral” position)

A/T: 800

±

50 rpm (in “P” or “N” position)