Nissan Juke F15. Manual - part 334

 

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Nissan Juke F15. Manual - part 334

 

 

DIAGNOSIS AND REPAIR WORKFLOW

EC-149

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[MR FOR NISMO RS MODELS]

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1.

GET INFORMATION FOR SYMPTOM

1. Get the detailed information from the customer about the symptom (the condition and the environment

when the incident/malfunction occurred) using the “Diagnostic Work Sheet”. (Refer to 

EC-151, "Diagnostic

Work Sheet"

.)

2. Ask if the customer requests I/M examination.

Malfunction information, obtained>>GO TO 2.

No malfunction information, but a request for I/M examination>>GO TO 13.

2.

CHECK DTC

1. Check DTC.

2. Perform the following procedure if DTC is displayed.

-

Record DTC and freeze frame data. (Print them out with CONSULT or GST.)

-

Erase only DTC of “ENGINE”.
With CONSULT: “How to Erase DTC and 1st Trip DTC” in 

EC-84, "CONSULT Function"

.

Without CONSULT: “How to Erase Self-diagnostic Results” i

EC-81, "On Board Diagnosis Function"

.

-

Study the relationship between the cause detected by DTC and the symptom described by the customer.

(Symptom Matrix Chart is useful. Refer to 

EC-576, "Symptom Table"

.)

3. Check related service bulletins for information.
Are any symptoms described and any DTCs detected?

Symptom is described, DTC is detected>>GO TO 3.

Symptom is described, DTC is not detected>>GO TO 4.

Symptom is not described, DTC is detected>>GO TO 5.

3.

CONFIRM THE SYMPTOM

Try to confirm the symptom described by the customer (except MIL ON).

Also study the normal operation and fail-safe related to the symptom. Refer to 

EC-583, "Description"

 and 

EC-

111, "Fail Safe"

.

Diagnosis Work Sheet is useful to verify the incident.

Verify relation between the symptom and the condition when the symptom is detected.

>> GO TO 5.

4.

CONFIRM THE SYMPTOM

Try to confirm the symptom described by the customer.

Also study the normal operation and fail-safe related to the symptom. Refer to Refer to 

EC-576, "Symptom

Table"

 and 

EC-111, "Fail Safe"

.

Diagnosis Work Sheet is useful to verify the incident.

Verify relation between the symptom and the condition when the symptom is detected.

>> GO TO 6.

5.

PERFORM DTC CONFIRMATION PROCEDURE

Perform DTC CONFIRMATION PROCEDURE for the displayed DTC, and then check that DTC is detected

again.

If two or more DTCs are detected, refer to 

EC-113, "DTC Inspection Priority Chart"

 and determine trouble

diagnosis order.

NOTE:

• Freeze frame data is useful if the DTC is not detected.

• Perform Component Function Check if DTC CONFIRMATION PROCEDURE is not included on Service

Manual. This simplified check procedure is an effective alternative though DTC cannot be detected during

this check.

If the result of Component Function Check is NG, it is the same as the detection of DTC by DTC CONFIR-

MATION PROCEDURE.

Is DTC detected?

YES

>> GO TO 10.

NO

>> Check according to 

GI-45, "Intermittent Incident"

.

EC-150

< BASIC INSPECTION >

[MR FOR NISMO RS MODELS]

DIAGNOSIS AND REPAIR WORKFLOW

6.

PERFORM BASIC INSPECTION

Perform 

EC-153, "Work Procedure"

.

Do you have CONSULT?

YES

>> GO TO 7.

NO

>> GO TO 9.

7.

PERFORM SPEC IN DATA MONITOR MODE

With CONSULT

Check that “MAS A/F SE-B1”, “MAS A/F SE-B2”, “B/FUEL SCHDL”, “A/F ALPHA-B1” and “A/F ALPHA-B2”

are within the SP value using “SPEC” in “DATA MONITOR” mode with CONSULT. Refer to 

EC-180, "Compo-

nent Function Check"

.

Is the measurement value within the SP value?

YES

>> GO TO 9.

NO

>> GO TO 8.

8.

DETECT MALFUNCTIONING PART BY TROUBLE DIAGNOSIS - SPECIFICATION VALUE

Detect malfunctioning part according to 

EC-181, "Diagnosis Procedure"

.

Is a malfunctioning part detected?

YES

>> GO TO 11.

NO

>> GO TO 9.

9.

DETECT MALFUNCTIONING SYSTEM BY SYMPTOM TABLE

Detect malfunctioning system according to 

EC-576, "Symptom Table"

 based on the confirmed symptom in

step 4, and determine the trouble diagnosis order based on possible causes and symptoms.

>> GO TO 10.

10.

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-48, "Circuit Inspec-

tion"

.

Is a malfunctioning part detected?

YES

>> GO TO 11.

NO

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

SULT. Refer to 

EC-96, "Reference Value"

.

11.

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 the following.

With CONSULT: “How to Erase DTC and 1st Trip DTC” i

EC-84, "CONSULT Function"

.

Without CONSULT: “How to Erase Self-diagnostic Results” in 

EC-81, "On Board Diagnosis Function"

.

>> GO TO 12.

12.

FINAL CHECK

When DTC was detected in step 2, perform DTC CONFIRMATION PROCEDURE or Component Function

Check again, and then check that the malfunction have been completely repaired.

When symptom was described from the customer, refer to confirmed symptom in step 3 or 4, and check that

the symptom is not detected.
Is DTC detected and does symptom remain?

YES-1 >> DTC is detected: GO TO 10.

YES-2 >> Symptom remains: GO TO 6.

DIAGNOSIS AND REPAIR WORKFLOW

EC-151

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NO-1 >> No request for I/M examination from the customer: Before returning the vehicle to the customer,

always erase unnecessary DTC in ECM and TCM ( With CONSULT: Refer to “How to Erase
DTC and 1st Trip DTC” in 

EC-84, "CONSULT Function"

,  Without CONSULT: Refer to “How to

Erase Self-diagnostic Results” in 

EC-81, "On Board Diagnosis Function"

). If the completion of

SRT is needed, drive vehicle under the specific driving pattern. Refer to 

EC-169, "SRT Set Driving

Pattern"

.

NO-2 >> I/M examination, requested from the customer: GO TO 13.

13.

PREPARE FOR I/M EXAMINATION

1. Set SRT codes. Refer to 

EC-168, "Description"

.

2. Erase permanent DTCs. Refer to 

EC-174, "Description"

.

>> INSPECTION END

Diagnostic Work Sheet

INFOID:0000000012197714

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 symptoms. It is

important to fully understand the symptoms or conditions for a cus-

tomer complaint.

Utilize a diagnostic worksheet like the WORKSHEET SAMPLE

below in order to organize all the information for troubleshooting.

Some conditions may cause the MIL to illuminate 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

EC-152

< BASIC INSPECTION >

[MR FOR NISMO RS MODELS]

DIAGNOSIS AND REPAIR WORKFLOW

WORKSHEET SAMPLE

MTBL0017

 

 

 

 

 

 

 

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