Qashqai J11. Engine control system (MR20DD) — part 26

ECM-402

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

CLUTCH PEDAL POSITION SWITCH

CLUTCH PEDAL POSITION SWITCH

Description

INFOID:0000000010703089

Clutch pedal position switch signal is applied to the ECM through the clutch pedal position switch when the
clutch pedal is depressed.

Component Function Check

INFOID:0000000010703090

1.

CHECK FOR CLUTCH PEDAL POSITION SWITCH FUNCTION

1.

Turn ignition switch ON.

2.

Check the voltage between ECM harness connector the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Refer to

ECM-402, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010703091

1.

CHECK CLUTCH PEDAL POSITION SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Disconnect clutch pedal position switch harness connector.

3.

Disconnect ECM harness connector.

4.

Check the continuity between clutch pedal position switch harness connector and ECM harness connec-
tor.

5.

Also check harness for short to ground and short to power.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair open circuit, short to ground or short to power in harness or connectors.

2.

CHECK CLUTCH PEDAL POSITION SWITCH GROUND CIRCUIT FOR OPEN AND SHORT

1.

Check the continuity between clutch pedal position switch harness connector and ground.

2.

Also check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

DETECT MALFUNCTIONING PART

Check the following.
• Harness for open and short between clutch pedal position switch and ground

ECM

Condition

Voltage

Connector

+

-

Terminal

Terminal

E57

108

128

Clutch pedal

Slightly depressed

Battery voltage

Fully released

Approx. 0 V

Clutch pedal position switch

ECM

Continuity

Connector

Terminal

Connector

Terminal

E2

1

E57

108

Existed

Clutch pedal position switch

Ground

Continuity

Connector

Terminal

E2

2

Ground

Existed

CLUTCH PEDAL POSITION SWITCH

ECM-403

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

C

D

E

F

G

H

I

J

K

L

M

A

ECM

N

P

O

>> Repair open circuit or short to power in harness or connectors.

4.

CHECK CLUTCH PEDAL POSITION SWITCH

Refer to

ECM-403, "Component Inspection (Clutch Pedal Position Switch)"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace clutch pedal assembly.

5.

CHECK INTERMITTENT INCIDENT

Refer to

GI-41, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection (Clutch Pedal Position Switch)

INFOID:0000000010703092

1.

CHECK CLUTCH PEDAL POSITION SWITCH-1

1.

Turn ignition switch OFF.

2.

Disconnect clutch pedal position switch harness connector

3.

Check the continuity between clutch pedal position switch terminal under the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

CHECK CLUTCH PEDAL POSITION SWITCH-2

1.

Adjust clutch pedal position switch installation. Refer to

CL-7, "Inspection and Adjustment"

.

2.

Check the continuity between clutch pedal position switch terminals under the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace clutch pedal assembly.

Terminal

Condition

Continuity

1 and 2

Clutch pedal

Slightly depressed

Not existed

Fully released

Existed

Terminals

Condition

Continuity

1 and 2

Clutch pedal

Slightly depressed

Not existed

Fully released

Existed

ECM-404

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

BRAKE PEDAL POSITION SWITCH

BRAKE PEDAL POSITION SWITCH

Component Function Check

INFOID:0000000010703093

1.

CHECK BRAKE PEDAL POSITION SWITCH FUNCTION

With CONSULT

1.

Turn ignition switch ON.

2.

Select “BRAKE SW” in “DATA MONITOR” mode with CONSULT.

3.

Check “BRAKE SW” indication as per the following conditions.

Without CONSULT

1.

Turn ignition switch ON.

2.

Check the voltage between ECM harness connector terminals as per the following.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to

ECM-404, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010703094

1.

CHECK BRAKE PEDAL POSITION SWITCH CIRCUIT

With CONSULT

1.

Turn ignition switch ON.

2.

Select “BRAKE SW 1” in “DATA MONITOR” mode of “ENGINE” with CONSULT.

3.

Check “BRAKE SW 1” indication as per the following conditions.

Without CONSULT

1.

Turn ignition switch ON.

2.

Check the voltage between ECM harness connector terminals as per the following.

Is the inspection result normal?

Monitor item

Condition

Indication

BRAKE SW 1

Brake pedal

Slightly de-
pressed

OFF

Fully re-
leased

ON

ECM

Condition

Voltage

(Approx.)

Connector

+

–

Terminal

E57

116

128

Brake pedal

Slightly de-
pressed

0 V

Fully released

Battery voltage

Monitor item

Condition

Indication

BRAKE SW 1

Brake pedal

Slightly de-
pressed

OFF

Fully re-
leased

ON

ECM

Condition

Voltage

(Approx.)

Connector

+

–

Terminal

E57

116

128

Brake pedal

Slightly depressed

0 V

Fully released

Battery voltage

BRAKE PEDAL POSITION SWITCH

ECM-405

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

C

D

E

F

G

H

I

J

K

L

M

A

ECM

N

P

O

YES

>> Check intermittent incident. Refer to

GI-41, "Intermittent Incident"

.

NO

>> GO TO 2.

2.

CHECK BRAKE PEDAL POSITION SWITCH POWER SUPPLY CIRCUIT

1.

Turn ignition switch ON.

2.

Disconnect brake pedal position switch harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between brake pedal position switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Perform trouble diagnosis for power supply circuit.

3.

CHECK BRAKE PEDAL POSITION SWITCH INPUT SIGNAL CIRCUIT

1.

Disconnect ECM harness connector.

2.

Check the continuity between brake pedal position switch harness connector and ECM harness connec-
tor.

3.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace malfunctioning part.

4.

CHECK BRAKE PEDAL POSITION SWITCH

Check brake pedal position switch. Refer to

ECM-405, "Component Inspection (Brake Pedal Position Switch)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-41, "Intermittent Incident"

.

NO

>> Replace brake pedal position switch. Refer to

BR-17, "Removal and Installation"

(LHD)

BR-61,

"Removal and Installation"

(RHD).

Component Inspection (Brake Pedal Position Switch)

INFOID:0000000010703095

1.

CHECK BRAKE PEDAL POSITION SWITCH-1

1.

Turn ignition switch OFF.

2.

Disconnect brake pedal position harness connector.

3.

Check the continuity between brake pedal position switch terminals as per the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

CHECK BRAKE PEDAL POSITION SWITCH-2

1.

Adjust brake pedal position switch installation. Refer to

BR-62, "Inspection and Adjustment"

.

+

−

Voltage

Brake pedal position switch

Connector

Terminal

E30

1

Ground

Battery voltage

+

−

Continuity

Brake pedal position switch

ECM

Connector

Terminal

Connector

Terminal

E30

2

E57

116

Existed

Terminals

Condition

Continuity

1 and 2

Brake pedal

Fully released

Existed

Slightly depressed

Not existed

ECM-406

< DTC/CIRCUIT DIAGNOSIS >

[MR20DD]

BRAKE PEDAL POSITION SWITCH

2.

Check the continuity between brake pedal position switch terminals as per the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace brake pedal position switch. Refer to

BR-61, "Removal and Installation"

.

Brake pedal position switch

Condition

Continuity

+

−

Terminal

1

2

Brake pedal

Fully released

Existed

Slightly depressed

Not existed

ENGINE CONTROL SYSTEM

ECM-407

< SYMPTOM DIAGNOSIS >

[MR20DD]

C

D

E

F

G

H

I

J

K

L

M

A

ECM

N

P

O

SYMPTOM DIAGNOSIS

ENGINE CONTROL SYSTEM

Symptom Table

INFOID:0000000010703099

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

T

ION

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

ECM-377

Fuel pressure regulator sys-
tem

3

3

4

4

4

4

4

4

4

4

ECM-135

Fuel injector circuit

1

1

2

3

2

2

2

2

ECM-372

Evaporative emission sys-
tem

3

3

4

4

4

4

4

4

4

4

ECM-414

Fuel rail pressure sensor cir-
cuit

1

1

2

2

2

2

2

2

ECM-240

High pressure fuel pump cir-
cuit

4

3

ECM-380

Air

Positive crankcase ventila-
tion system

3

3

4

4

4

4

4

4

4

4

1

ECM-415

Incorrect idle speed adjust-
ment

1

1

1

1

1

ECM-412

Electric throttle control actu-
ator

1

1

2

3

3

2

2

2

2

2

2

ECM-350

,

ECM-355

Intake manifold runner con-
trol valve circuit

4

4

ECM-343

Igni-
tion

Incorrect ignition timing ad-
justment

3

3

1

1

1

1

1

1

ECM-413

Ignition circuit

1

1

2

2

2

2

2

2

ECM-385

Main power supply and ground cir-
cuit

2

2

3

3

3

3

3

2

3

ECM-145

ECM-408

< SYMPTOM DIAGNOSIS >

[MR20DD]

ENGINE CONTROL SYSTEM

Main power supply and ground cir-
cuit

1

1

2

2

2

2

2

2

ECM-145

Engine coolant temperature sensor
circuit

3

3

3

ECM-191

Air fuel ratio (A/F) sensor 1 circuit

ECM-197

,

ECM-200

,

ECM-203

Throttle position sensor circuit

2

2

ECM-194

,

ECM-247

,

ECM-324

,

ECM-325

,

ECM-364

Accelerator pedal position sensor
circuit

3

2

1

ECM-357

,

ECM-360

,

ECM-367

Knock sensor circuit

2

3

ECM-257

Engine oil temperature sensor cir-
cuit

4

2

3

ECM-244

Crankshaft position sensor circuit

2

2

ECM-259

Camshaft position sensor (PHASE)
circuit

3

2

ECM-263

Vehicle speed signal circuit

2

3

3

3

ECM-279

ECM

2

2

3

3

3

3

3

3

3

3

3

ECM-298

,

ECM-299

,

ECM-300

,

ECM-302

Intake valve timing control solenoid
valve circuit

3

2

1

3

2

2

3

3

ECM-156

,

ECM-170

Exhaust valve timing control sole-
noid valve circuit

3

2

1

3

2

2

3

3

ECM-160

,

ECM-173

Exhaust valve timing control position
sensor circuit

5

5

5

5

5

5

5

5

ECM-313

M/T models: Reverse/neutral posi-
tion signal circuit
CVT models: Transmission range
switch

3

3

3

3

3

ECM-308

,

ECM-310

Refrigerant pressure sensor circuit

2

3

3

4

ECM-394

Electrical load signal circuit

3

ECM-390

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

X

CESSIVE

FUEL CON

S

UMP

T

ION

E

X

CESSIVE

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

ENGINE CONTROL SYSTEM

ECM-409

< SYMPTOM DIAGNOSIS >

[MR20DD]

C

D

E

F

G

H

I

J

K

L

M

A

ECM

N

P

O

1 - 6: The numbers refer to the order of inspection.

(continued on next table)

SYSTEM — ENGINE MECHANICAL & OTHER

Air conditioner circuit

2

2

3

3

3

3

3

3

3

3

2

HAC-68

,

HAC-182

ABS actuator and electric unit (con-
trol unit)

4

BRC-42

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

X

CESSIVE

FUEL CON

S

UMP

T

ION

E

X

CESSIVE

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

SYMPTOM

Reference
page

HARD/NO ST

AR

T/REST

AR

T (EXCP

. HA)

ENGINE ST

A

L

L

HESIT

A

TIO

N

/SURG

IN

G/FLA

T

S

P

OT

SP

ARK K

N

OCK/

DET

O

NA

TION

LACK OF P

O

WER/POOR ACCELE

R

A

TIO

N

HIGH I

D

L

E

/L

OW IDL

E

ROUGH IDLE

/HUN

TING

IDL

ING VIB

R

A

T

IO

N

SLOW/NO RETURN T

O

IDLE

OVERHEA

T

S/W

A

TER TEMPERA

T

URE HIGH

EXCES

SIVE FUEL C

O

NSUMP

T

ION

EXCES

SIVE OI

L

CONSUMP

T

IO

N

BA

TTE

R

Y

DEA

D

(UND

E

R

CHARG

E

)

Warranty symptom code

AA

AB

AC

AD

AE

AF

AG

AH

AJ

AK

AL

AM

HA

Fuel

Fuel tank

5

5

FL-28

Fuel piping

5

5

5

5

5

5

FL-17

Vapor lock

—

Valve deposit

5

5

5

5

5

5

5

—

Poor fuel (Heavy weight
gasoline, Low octane)

—

ECM-410

< SYMPTOM DIAGNOSIS >

[MR20DD]

ENGINE CONTROL SYSTEM

Air

Air duct

5

5

5

5

5

5

EM-148

Air cleaner

EM-148

Air leakage from air
duct
(Mass air flow sensor
— electric throttle con-
trol actuator)

5

5

5

5

EM-148

Electric throttle control
actuator

EM-148

Air leakage from intake
manifold/Collector/
Gasket

—

Cranking

Battery

1

1

1

1

1

1

1

1

PG-138

,

PG-143

Generator circuit

CHG-46

Starter circuit

3

STR-18

Signal plate

6

EM-231

M/T models: Reverse/
neutral position signal
circuit
CVT models: Transmis-
sion range switch

4

TM-15

,

TM-303

Engine

Cylinder head

5

5

5

5

5

5

5

5

EM-215

Cylinder head gasket

4

3

Cylinder block

6

6

6

6

6

6

6

6

4

EM-231

Piston

Piston ring

Connecting rod

Bearing

Crankshaft

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

X

CESSIVE

FUEL CON

S

UMP

T

ION

E

X

CESSIVE

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

ENGINE CONTROL SYSTEM

ECM-411

< SYMPTOM DIAGNOSIS >

[MR20DD]

C

D

E

F

G

H

I

J

K

L

M

A

ECM

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-194

Camshaft

EM-200

Intake valve timing con-
trol

ECM-158

Exhaust valve timing
control

ECM-162

Intake valve

3

EM-215

Exhaust valve

Exhaust

Exhaust manifold/Tube/
Muffler/Gasket

5

5

5

5

5

5

5

5

EX-10

,

EM-155

Three way catalyst

Lubrica-
tion

Oil pan/Oil strainer/Oil
pump/Oil filter/Oil gal-
lery/Oil cooler

5

5

5

5

5

5

5

5

EM-158

,

EM-221

,

LU-25

,

LU-28

,

LU-29

Oil level (Low)/Filthy oil

LU-22

Cooling

Radiator/Hose/Radia-
tor filler cap

5

5

5

5

5

5

5

4

5

CO-38

,

CO-42

Thermostat

5

CO-52

Water pump

CO-49

Water gallery

CO-32

Cooling fan

5

CO-48

Coolant level (Low)/
Contaminated coolant

CO-38

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

X

CESSIVE

FUEL CON

S

UMP

T

ION

E

X

CESSIVE

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

ECM-412

< PERIODIC MAINTENANCE >

[MR20DD]

IDLE SPEED

PERIODIC MAINTENANCE

IDLE SPEED

Inspection

INFOID:0000000010703101

1.

CHECK IDLE SPEED

With CONSULT

Check idle speed in “DATA MONITOR” mode of “ENGINE” using CONSULT.

Without CONSULT

Attach induction type (current detection type) rev counter (A) to loop
wire

as shown and check idle speed.

>> INSPECTION END

: Vehicle front

JSBIA0602ZZ

IGNITION TIMING

ECM-413

< PERIODIC MAINTENANCE >

[MR20DD]

C

D

E

F

G

H

I

J

K

L

M

A

ECM

N

P

O

IGNITION TIMING

Inspection

INFOID:0000000010703102

1.

CHECK IGNITION TIMING

1.

Attach timing light to wire loop as shown.

2.

Check ignition timing.

>> INSPECTION END

: Timing indicator

PBIB3263E

ECM-414

< PERIODIC MAINTENANCE >

[MR20DD]

EVAPORATIVE EMISSION SYSTEM

EVAPORATIVE EMISSION SYSTEM

Inspection

INFOID:0000000010703103

1.

Visually inspect EVAP vapor lines for improper attachment and for cracks, damage, loose connections,
chafing and deterioration.

2.

Check EVAP canister as follows:

a.

Block port (B). Orally blow air through port (A).
Check that air flows freely through port (C).

b.

Block port. Orally blow air through port.
Check that air flows freely through port.

3.

Visually inspect the fuel check valve for cracks, damage, loose
connections chafing and deterioration.

4.

Check fuel check valve as follows:

a.

Blow air through connector on the fuel tank side. A considerable
resistance should be felt and a portion of air flow should be
directed toward the EVAP canister side.

b.

Blow air through connector on EVAP canister side. Air flow
should be smoothly directed toward fuel tank side.

c.

If fuel check valve is suspected or not properly functioning in
step 1 and 2 above, replace it.

5.

Inspect fuel tank filler cap vacuum relief valve for clogging, stick-
ing, etc.

a.

Wipe clean valve housing.

b.

Check valve opening pressure and vacuum.

c.

If out of specification, replace fuel filler cap as an assembly.

PBIB0663E

SEF552Y

SEF989X

Pressure:

15.3 - 20.0 kPa (0.153 - 0.200 bar, 0.156 - 0.204 kg/

cm

2

, 2.22 - 2.90 psi)

Vacuum:

–6.0 to –3.4 kPa (–0.06 bar to –-0.034bar, –0.061 to –

0.035 kg/cm

2

, –0.87 to –0.49 psi)

SEF943S

POSITIVE CRANKCASE VENTILATION

ECM-415

< PERIODIC MAINTENANCE >

[MR20DD]

C

D

E

F

G

H

I

J

K

L

M

A

ECM

N

P

O

POSITIVE CRANKCASE VENTILATION

Inspection

INFOID:0000000010703104

1.

CHECK PCV VALVE

1.

Start the engine and let it idle.

2.

Replace PCV valve from the rocker cover. Refer to

EM-170, "Exploded View"

.

3.

Check that a properly working valve makes a hissing noise as
air passes through it.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace PCV valve. Refer to

EM-170, "Exploded View"

.

PBIB1589E

ECM-416

< REMOVAL AND INSTALLATION >

[MR20DD]

ECM

REMOVAL AND INSTALLATION

ECM

Removal and Installation

INFOID:0000000010703105

EXPLODED VIEW

CAUTION:

Perform ADDITIONAL SERVICE WHEN REPLACING ECM. Refer to

ECM-124, "Work Procedure"

.

REMOVAL

1.

Remove air duct.

2.

Remove the resonator. Refer to

EM-147, "Exploded View"

.

3.

Disconnect barometric pressure sensor harness connector.

4.

Remove mounting bolts and the barometric pressure sensor.

5.

Remove the hose from the barometric pressure sensor.

6.

Disconnect ECM harness connectors. Refer to

PG-5, "Harness Connector"

(lever locking type).

7.

Remove ECM mounting nuts, and then remove ECM.

INSTALLATION

Install in the reverse order of removal.

ECM

Battery tray

hose

Barometric pressure sensor

: Vehicle front

JSBIA4560ZZ

SERVICE DATA AND SPECIFICATIONS (SDS)

ECM-417

< SERVICE DATA AND SPECIFICATIONS (SDS)

[MR20DD]

C

D

E

F

G

H

I

J

K

L

M

A

ECM

N

P

O

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Idle Speed

INFOID:0000000010703106

*: Under the following conditions

• A/C switch: OFF

• Electric load: OFF (Lights, heater fan & rear window defogger)

• Steering wheel: Kept in straight-ahead position

Ignition Timing

INFOID:0000000010703107

*: Under the following conditions

• A/C switch: OFF

• Electric load: OFF (Lights, heater fan & rear window defogger)

• Steering wheel: Kept in straight-ahead position

Calculated Load Value

INFOID:0000000010703108

Mass Air Flow Sensor

INFOID:0000000010703109

Condition

Specification

No load* (in P or N position)

650

±

50 rpm (CVT models)

700

±

50 rpm (M/T models)

Condition

Specification

No load* (in P or N position)

0

±

2

°

BTDC

Condition

Specification

At idle

5 – 35 %

At 2,500 rpm

5 – 35 %

Condition

Specification

At idle

1.0 – 4.0 g/s

At 2,500 rpm

2.0 – 12.0 g/s