engine NISSAN TEANA 2014 Service Manual

ENGINE CONTROL SYSTEMEC-159
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ABBIA1819GB
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EC-160
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ENGINE CONTROL SYSTEM
ABBIA1820GB
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ENGINE CONTROL SYSTEMEC-161
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ABBIA1821GB
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EC-162
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ENGINE CONTROL SYSTEM
ABBIA1831GB
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ENGINE CONTROL SYSTEMEC-163
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ABBIA1822GB
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EC-164
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ENGINE CONTROL SYSTEM
ABBIA1823GB
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EC-166
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DIAGNOSIS AND REPAIR WORKFLOW
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-168, "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-77, "CONSULT Function"
.
Without CONSULT: “How to Erase Self-diagnostic Results” in EC-74, "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-527, "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-s afe related to the symptom. Refer to EC-533, "Description"
and EC-
101, "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 re lated to the symptom. Refer to Refer to EC-533, "Description"
and EC-101, "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 disp layed DTC, and then check that DTC is detected
again.
If two or more DTCs are detected, refer to EC-104, "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 CONFIR MATION PROCEDURE is not included on Service
Manual. This simplified check procedure is an effect ive 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-43, "Intermittent Incident"
.
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EC-168
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DIAGNOSIS AND REPAIR WORKFLOW
NO-1 >> No request for I/M examination from the custom
er: 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-77, "CONSULT Function"
, Without CONSULT: Refer to “How to
Erase Self-diagnostic Results” in EC-74, "On Board Diagnosis Function"
). If the completion of
SRT is needed, drive vehicle under the specific driving pattern. Refer to EC-184, "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-183, "Description"
.
2. Erase permanent DTCs. Refer to EC-189, "Description"
.
>> INSPECTION END
Diagnostic Work SheetINFOID:0000000009462128
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
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EC-170
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BASIC INSPECTION
BASIC INSPECTION
Work ProcedureINFOID:0000000009462129
1.INSPECTION START
1. Check service records for any recent repairs that ma y indicate a related malfunction, or a current need for
scheduled maintenance.
2. Open engine hood and check the following:
- Harness connectors for improper connections
- Wiring harness for improper connections, pinches and cut
- Vacuum hoses for splits, kinks and improper connections
- Hoses and ducts for leaks
- Air cleaner clogging
- Gasket
3. Confirm that electrical or mechanical loads are not applied.
- Headlamp switch is OFF.
- Air conditioner switch is OFF.
- Rear window defogger switch is OFF.
- Steering wheel is in the straight-ahead position, etc.
4. Start engine and warm it up until engine coolant temperature indicator points the middle of gauge.
Ensure engine stays below 1,000 rpm.
5. Run engine at about 2,000 rpm for about 2 minutes under no load.
6. Make sure that no DTC is displayed with CONSULT or GST.
Is any DTC detected?
YES >> GO TO 2.
NO >> GO TO 3.
2.REPAIR OR REPLACE
Repair or replace components as necessary according to corresponding Diagnostic Procedure.
>> GO TO 3.
3.CHECK TARGET IDLE SPEED
1. Run engine at about 2,000 rpm for about 2 minutes under no load.
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BASIC INSPECTIONEC-171
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2. Rev engine (2,000 to 3,000 rpm) two or three times under no
load, then run engine at idle speed for about 1 minute.
3. Check idle speed.
For procedure, refer to EC-534, "Inspection"
.
For specification, refer to EC-541, "Idle Speed"
.
Is the inspection result normal?
YES >> GO TO 10.
NO >> GO TO 4.
4.PERFORM ACCELERATOR PEDAL RE LEASED POSITION LEARNING
1. Stop engine.
2. Perform EC-177, "Work Procedure"
.
>> GO TO 5.
5.PERFORM THROTTLE VALVE CL OSED POSITION LEARNING
Perform EC-178, "Work Procedure"
.
>> GO TO 6.
6.PERFORM IDLE AIR VOLUME LEARNING
Perform EC-179, "Work Procedure"
.
Is Idle Air Volume Learning carried out successfully?
YES >> GO TO 7.
NO >> Follow the instruction of Idle Air Volume Learning. Then GO TO 4.
7.CHECK TARGET IDLE SPEED AGAIN
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed.
For procedure, refer to EC-534, "Inspection"
.
For specification, refer to EC-541, "Idle Speed"
.
Is the inspection result normal?
YES >> GO TO 10.
NO >> GO TO 8.
8.DETECT MALFUNCTIONING PART
Check the Following.
• Check camshaft position sensor (PHASE) and circuit. Refer to EC-329, "DTC Logic"
.
• Check crankshaft position sensor (POS) and circuit. Refer to EC-326, "DTC Logic"
.
Is the inspection result normal?
YES >> GO TO 9.
NO >> Repair or replace. Then GO TO 4
9.CHECK ECM FUNCTION
1. Substitute another known-good ECM to check ECM f unction. (ECM may be the cause of an incident, but
this is a rare case.)
2. Perform initialization of NVIS (NATS) system and regi stration of all NVIS (NATS) ignition key IDs. Refer to
SEC-66, "ECM : Work Procedure"
.
>> GO TO 4.
10.CHECK IGNITION TIMING
1. Run engine at idle.
PBIA8513J
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