Nissan Qashqai J11. Manual - part 392

 

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Nissan Qashqai J11. Manual - part 392

 

 

ECK-128

< BASIC INSPECTION >

[K9K]

DIAGNOSIS AND REPAIR WORKFLOW

Detect malfunctioning system according to 

ECK-388, "Symptom Table"

 (for engine control system) or 

ECK-

394, "Diagnosis Procedure"

 (for stop/start system) based on the confirmed symptom in step 4, and determine

the trouble diagnosis order based on possible causes and symptom.

>> GO TO 8.

8.

DETECT MALFUNCTIONING PART BY DIAGNOSIS PROCEDURE

Inspect according to Diagnosis Procedure of the system.
NOTE:
The Diagnosis Procedure in EC section described based on open circuit inspection. A short circuit inspection
is also required for the circuit check in the Diagnosis Procedure. For details, refer to 

GI-43, "Circuit Inspec-

tion"

.

Is malfunctioning part detected?

YES

>> GO TO 9.

NO

>> Monitor input data from related sensors or check voltage of related ECM terminals using CON-

SULT. Refer to 

ECK-76, "Reference Value"

.

9.

REPAIR OR REPLACE THE MALFUNCTIONING PART

1.

Repair or replace the malfunctioning part.

2.

Reconnect parts or connectors disconnected during Diagnosis Procedure again after repair and replace-
ment.

3.

Check DTC. If DTC is displayed, erase it. Refer to 

ECK-51, "Diagnosis Description"

.

>> GO TO 10.

10.

FINAL CHECK

When DTC was detected in step 2, perform DTC CONFIRMATION PROCEDURE or Component Function
Check again, and then make sure that the malfunction have been repaired securely.
When symptom was described from the customer, refer to confirmed symptom in step 3 or 4, and make sure
that the symptom is not detected.

Is DTC detected and does symptom remain?

YES-1 >> DTC is detected: GO TO 8.
YES-2 >> Symptom remains: GO TO 6.
NO

>> Before returning the vehicle to the customer, make sure to erase unnecessary DTC in ECM.

Diagnostic Work Sheet

INFOID:0000000010289681

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 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

DIAGNOSIS AND REPAIR WORKFLOW

ECK-129

< BASIC INSPECTION >

[K9K]

C

D

E

F

G

H

I

J

K

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M

A

ECK

N

P

O

WORKSHEET SAMPLE

MTBL0017

ECK-130

< BASIC INSPECTION >

[K9K]

SERVICE AFTER REPLACING OR REMOVING ENGINE PARTS

SERVICE AFTER REPLACING OR REMOVING ENGINE PARTS

Special Repair Requirement List

INFOID:0000000010477821

×

:Applicable

*:Harness connector disconnection included.

Part name

Service performed

Required service

Reference

Replace-

ment

Removal

*

ECM

×

Additional service when replacing ECM

ECK-131

Fuel injector

×

Injector adjustment value registration

ECK-134

Mass air flow sensor

×

Mass air flow sensor learning value clear

ECK-141

TC boost sensor

×

TC boost sensor learning value clear

ECK-143

Turbocharger

×

Turbocharger learning value clear

ECK-142

Electric throttle control actuator

×

Throttle valve position learning value clear

ECK-136

×

×

Throttle valve position learning

Exhaust electric throttle control 
actuator

×

Exhaust throttle valve position learning value clear

ECK-137

×

×

Exhaust throttle valve position learning

EGR volume control valve

×

EGR volume control valve position learning value 
clear

ECK-138

×

×

EGR volume control valve position learning

Low pressure EGR volume con-
trol valve

×

Low pressure EGR volume control valve position 
learning value clear

ECK-139

×

×

Low pressure EGR volume control valve position 
learning

DPF (Diesel Particulate Filter) dif-
ferential pressure sensor

×

DPF differential pressure sensor learning value 
clear

ECK-144

DPF (Diesel Particulate Filter)

×

DPF (Diesel Particulate Filter) data clear

ECK-140

High pressure fuel pump

×

Fuel pump operation counter clear

ECK-145

Starter

×

Starter operation counter clear

ECK-146

Engine oil

×

Oil change remaining distance reset 

ECK-147

ADDITIONAL SERVICE WHEN REPLACING ECM

ECK-131

< BASIC INSPECTION >

[K9K]

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ECK

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ADDITIONAL SERVICE WHEN REPLACING ECM

Description

INFOID:0000000010289682

When replacing ECM, this procedure must be performed.
NOTE:
The necessary operation is different depending on the operation result of ECM data save or write. Always per-
form the operation according to procedures. Refer to 

ECK-131, "Work Procedure"

.

Work Procedure

INFOID:0000000010289683

1.

SAVE ECM DATA

1.

Turn ignition switch OFF and wait at least 1 minute.

2.

Reconnect all harness connectors disconnected.

3.

Turn ignition switch ON.

4.

Select “SAVE COMPUTER DATA” in “WORK SUPPORT” mode of “ENGINE” using CONSULT.

5.

Follow the instruction of CONSULT display.
NOTE:
Necessary data in ECM is copied and saved to CONSULT.

Is operation completed successfully?

YES

>> GO TO 2.

NO

>> GO TO 6.

2.

REPLACE ECM

1.

Turn ignition switch OFF and wait at least 1 minute.

2.

Replace ECM. Refer to 

ECK-399, "Removal and Installation"

.

>> GO TO 3.

3.

PERFORM PROGRAMMING

Refer to “CONSULT Operation Manual”.

>> GO TO 4.

4.

PERFORM ECM KEY ID REGISTRATION

Refer to “CONSULT Operation Manual NATS-IVIS/NVIS”.

>> GO TO 5.

5.

WRITE ECM DATA

1.

Select “WRITE SAVED DATA” in “WORK SUPPORT” mode of “ENGINE” using CONSULT.

2.

Follow the instruction of CONSULT display.
NOTE:
The data saved by “WRITE SAVED DATA” is written to ECM.

Is operation completed successfully?

YES

>> GO TO 11.

NO

>> GO TO 9.

6.

REPLACE ECM

1.

Turn ignition switch OFF and wait at least 1 minute.

2.

Replace ECM. Refer to 

ECK-399, "Removal and Installation"

.

>> GO TO 7.

7.

PERFORM PROGRAMMING

Refer to “CONSULT Operation Manual”.

 

 

 

 

 

 

 

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