2003 NISSAN TEANA Service Manual

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Page 1673 of 3502

NISSAN TEANA 2003 Service Manual BASIC SERVICE PROCEDURE
EC-391
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5. Turn ignition switch OFF and wait at least 10 seconds.
6. Confirm that accelerator pedal is fully released, turn ignition switch ON a

Page 1674 of 3502

NISSAN TEANA 2003 Service Manual EC-392
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BASIC SERVICE PROCEDURE

Fuel Pressure CheckBBS004Y5
FUEL PRESSURE RELEASE
With CONSULT-II
1. Turn ignition switch ON.
2. Perform “FUEL PRESSURE RELEASE” in “WORK SUPPORT”
mode w

Page 1675 of 3502

NISSAN TEANA 2003 Service Manual BASIC SERVICE PROCEDURE
EC-393
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If OK, replace fuel pressure regulator.
If NG, repair or replace.

Page 1676 of 3502

NISSAN TEANA 2003 Service Manual EC-394
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TROUBLE DIAGNOSIS

TROUBLE DIAGNOSISPFP:00004
Trouble Diagnosis IntroductionBBS004Y6
INTRODUCTION
The engine has an ECM to control major systems such as fuel con-
trol, ignition control,

Page 1677 of 3502

NISSAN TEANA 2003 Service Manual TROUBLE DIAGNOSIS
EC-395
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WORK FLOW
Overall Sequence
PBIB2267E

Page 1678 of 3502

NISSAN TEANA 2003 Service Manual EC-396
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TROUBLE DIAGNOSIS

Detailed Flow
1. GET INFORMATION FOR SYMPTOM
Get the detailed information from the customer about the symptom (the condition and the environment when
the incident/malfu

Page 1679 of 3502

NISSAN TEANA 2003 Service Manual TROUBLE DIAGNOSIS
EC-397
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5. PERFORM DTC CONFIRMATION PROCEDURE
Perform DTC Confirmation Procedure for the displayed DTC*
1 , and then make sure that DTC*1 is detected

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NISSAN TEANA 2003 Service Manual EC-398
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TROUBLE DIAGNOSIS

10. DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE
Inspect according to Diagnostic Procedure of the system.
NOTE:
The Diagnostic Procedure in EC section described b

EC-398
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TROUBLE DIAGNOSIS

10. DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE
Inspect according to Diagnostic Procedure of the system.
NOTE:
The Diagnostic Procedure in EC section described based on open circuit inspection. A short circuit inspection
is also required for the circuit check in the Diagnostic Procedure. For details, refer to Circuit Inspection in GI-
24, "How to Perform Efficient Diagnosis for an Electrical Incident" .
Is malfunctioning part detected?
Yes >> GO TO 11.
No >> Monitor input data from related sensors or check voltage of related ECM terminals using CON-
SULT-II. Refer to EC-434, "
CONSULT-II Reference Value in Data Monitor Mode" , EC-415, "ECM
Terminals and Reference Value" .
11 . REPAIR OR REPLACE THE MALFUNCTIONING PART
1. Repair or replace the malfunctioning part.
2. Reconnect parts or connectors disconnected during Diagnostic Procedure again after repair and replace-
ment.
3. Check DTC. If DTC is displayed, erase it, refer to EC-376, "
HOW TO ERASE EMISSION-RELATED
DIAGNOSTIC INFORMATION" .
>> GO TO 12.
12. FINAL CHECK
When DTC was detected in step 2, perform DTC Confirmation Procedure or Overall 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.
OK or NG
NG (DTC*1 is detected)>>GO TO 10.
NG (Symptom remains)>>GO TO 6.
OK >> 1. Before returning the vehicle to the customer, make sure to erase unnecessary DTC*
1 in ECM.
(Refer to EC-376, "
HOW TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION" .)
2.INSPECTION END
*1: Include 1st trip DTC.
*2: Include 1st trip freeze frame data.
DIAGNOSTIC WORKSHEET
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.
SEF907L

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