Nissan X-Trail 32. Instruction — part 952

BASIC INSPECTION

EC-937

< BASIC INSPECTION >

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BASIC INSPECTION

BASIC INSPECTION

Work Procedure

INFOID:0000000010935593

1.

INSPECTION START

1.

Check service records for any recent repairs that may indicate a related incident.

2.

Check the current need for scheduled maintenance, especially for fuel filter and air cleaner filter. Refer to

MA-8, "Periodic Maintenance"

.

3.

Open engine hood and check the following:

-

Harness connectors for improper connections

-

Vacuum hoses for splits, kinks, or improper connections

-

Wiring for improper connections, pinches, or cuts

4.

Start engine and warm it up to the normal operating tempera-
ture.

>> GO TO 2.

2.

CHECK IDLE SPEED

Check idle speed.
For procedure, refer to

EC-1224, "Inspection"

.

For specification, refer to

EC-1232, "Idle Speed"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 3.

3.

CHECK FOR INTAKE AIR LEAK

1.

Stop engine.

2.

Listen for an intake air leak after the mass air flow sensor.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace. Refer to

EM-308, "Exploded View"

.

4.

CHECK IDLE SPEED AGAIN

Check idle speed.
For procedure, refer to

EC-1224, "Inspection"

.

For specification, refer to

EC-1232, "Idle Speed"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 5.

5.

DRAIN WATER FROM FUEL FILTER

1.

Stop engine.

2.

Drain water from fuel filter. Refer to

FL-38, "Draining Water from Fuel Filter"

.

>> GO TO 6.

6.

CHECK IDLE SPEED AGAIN

Check idle speed.
For procedure, refer to

EC-1224, "Inspection"

.

For specification, refer to

EC-1232, "Idle Speed"

.

SEF142I

EC-938

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BASIC INSPECTION

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 7.

7.

CHECK AIR CLEANER FILTER

1.

Stop engine.

2.

Check air cleaner filter for clogging or breaks.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Replace air cleaner filter. Refer to

EM-308, "Removal and Installation"

.

8.

CHECK BATTERY VOLTAGE

Check battery voltage.

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> GO TO 9.

9.

CHECK BATTERY

Refer to

PG-118, "R9M : How to Handle Battery"

.

Is the inspection result normal?

YES

>> Check charging system. Refer to

CHG-14, "Work Flow"

.

NO

>> Repair or replace. Refer to

PG-139, "R9M : Removal and Installation"

.

10.

CHECK COMPRESSION PRESSURE

Check compression pressure.

Is the inspection result normal?

YES

>> GO TO 11.

NO

>> Repair or replace error-detected parts.

11.

CHECK IDLE SPEED AGAIN

Check idle speed.
For procedure, refer to

EC-1224, "Inspection"

.

For specification, refer to

EC-1232, "Idle Speed"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> 1.

Replace fuel injector. Refer to

EM-339, "Removal and Installation"

.

2.

Perform

EC-947, "Work Procedure"

.

3.

GO TO 2.

Voltage:

More than 12.13V

DIAGNOSIS AND REPAIR WORKFLOW

EC-939

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DIAGNOSIS AND REPAIR WORKFLOW

Work Flow

INFOID:0000000010935594

OVERALL SEQUENCE

DETAILED FLOW

1.

GET INFORMATION FOR SYMPTOM

JMBIA1804GB

EC-940

< BASIC INSPECTION >

[R9M]

DIAGNOSIS AND REPAIR WORKFLOW

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-941, "Diagnostic Work

Sheet"

.)

>> GO TO 2.

2.

CHECK DTC

1.

Check DTC.

2.

Perform the following procedure if DTC is displayed.

-

Record DTC. (Print them out with CONSULT or GST.)

-

Erase DTC.

-

Study the relationship between the cause detected by DTC and the symptom described by the customer.
[Symptom Table or diagnosis procedure is useful. Refer to

EC-1218, "Symptom Table"

(for engine control

system) or

EC-1221, "Diagnosis Procedure"

(for stop/start system).]

3.

Check related service bulletins for information.

Is any symptom described and is any DTC 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 fail safe related to the symptom. Refer to

EC-901, "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.
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.
If two or more DTCs are detected, refer to

EC-907, "DTC Inspection Priority Chart"

and determine trouble

diagnosis order.
NOTE:
Perform Component Function Check if DTC CONFIRMATION PROCEDURE is not included on Service Man-
ual. 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 CONFIRMA-
TION PROCEDURE.
Is DTC detected?

YES

>> GO TO 8.

NO

>> Check according to

GI-44, "Intermittent Incident"

.

6.

PERFORM BASIC INSPECTION

Perform

EC-937, "Work Procedure"

.

>> GO TO 7.

7.

DETECT MALFUNCTIONING SYSTEM BY SYMPTOM TABLE

Detect malfunctioning system according to

EC-1218, "Symptom Table"

(for engine control system) or

EC-

1221, "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.