Nissan Qashqai J11. Manual — part 392
ECK-128
< BASIC INSPECTION >
[K9K]
DIAGNOSIS AND REPAIR WORKFLOW
Detect malfunctioning system according to
(for engine control system) or
(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
.
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
.
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
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WORKSHEET SAMPLE
MTBL0017
ECK-130
< BASIC INSPECTION >
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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
Fuel injector
×
Injector adjustment value registration
Mass air flow sensor
×
Mass air flow sensor learning value clear
TC boost sensor
×
TC boost sensor learning value clear
Turbocharger
×
Turbocharger learning value clear
Electric throttle control actuator
×
Throttle valve position learning value clear
×
×
Throttle valve position learning
Exhaust electric throttle control
actuator
×
Exhaust throttle valve position learning value clear
×
×
Exhaust throttle valve position learning
EGR volume control valve
×
EGR volume control valve position learning value
clear
×
×
EGR volume control valve position learning
Low pressure EGR volume con-
trol valve
×
Low pressure EGR volume control valve position
learning value clear
×
×
Low pressure EGR volume control valve position
learning
DPF (Diesel Particulate Filter) dif-
ferential pressure sensor
×
DPF differential pressure sensor learning value
clear
DPF (Diesel Particulate Filter)
×
DPF (Diesel Particulate Filter) data clear
High pressure fuel pump
×
Fuel pump operation counter clear
Starter
×
Starter operation counter clear
Engine oil
×
Oil change remaining distance reset
ADDITIONAL SERVICE WHEN REPLACING ECM
ECK-131
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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
.
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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