2006 INFINITI M35 Factory Service Manual

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INFINITI M35 2006 Factory Service Manual EC-810
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BASIC SERVICE PROCEDURE
Revision: 2006 January2006 M35/M45
2. Install the inline fuel quick disconnect fitting A between fuel
damper (1) and fuel tube.
3. Connect the fuel

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INFINITI M35 2006 Factory Service Manual TROUBLE DIAGNOSIS
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TROUBLE DIAGNOSISPFP:00004
Trouble Diagnosis IntroductionNBS005AE
INTRODUCTION
The engine has an ECM to c

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INFINITI M35 2006 Factory Service Manual EC-812
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TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
WORK FLOW
Overall Sequence
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INFINITI M35 2006 Factory Service Manual TROUBLE DIAGNOSIS
EC-813
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Detailed Flow
1. GET INFORMATION FOR SYMPTOM
Get the detailed information from the customer about the sy

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INFINITI M35 2006 Factory Service Manual EC-814
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TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
5. PERFORM DTC CONFIRMATION PROCEDURE
Perform DTC Confirmation Procedure for the displayed DTC*
1 , and then make sure that DTC*1

EC-814
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TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
5. PERFORM DTC CONFIRMATION PROCEDURE
Perform DTC Confirmation Procedure for the displayed DTC*
1 , and then make sure that DTC*1 is detected
again.
At this time, always connect CONSULT-II to the vehicle, and check diagnostic results in real time on “DATA
MONITOR (AUTO TRIG)”.
If two or more DTCs*
1 are detected, refer to EC-817, "DTC Inspection Priority Chart" and determine trouble
diagnosis order.
NOTE:
Freeze frame data*2 is useful if the DTC*1 is not detected.
Perform Overall Function Check if DTC Confirmation Procedure is not included on Service Manual. This
simplified check procedure is an effective alternative though DTC*
1 cannot be detected during this check.
If the result of Overall Function Check is NG, it is the same as the detection of DTC*
1 by DTC Confirma-
tion Procedure.
Is DTC*
1 detected?
Yes >> GO TO 10.
No >> Check according to EC-878, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
6. PERFORM BASIC INSPECTION
Perform EC-788, "
Basic Inspection" .
With CONSULT-II>>GO TO 7.
Without CONSULT-II>>GO TO 9.
7. PERFORM DATA MONITOR (SPEC) MODE
With CONSULT-II
Make sure that “MAS A/F SE-B1”, “B/FUEL SCHDL”, and “A/F
ALPHA-B1”, “A/F ALPHA-B2” are within the SP value using CON-
SULT-II “DATA MONITOR (SPEC)” mode. Refer to EC-869, "
Diag-
nostic Procedure" .
Are they 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-868, "
TROUBLE DIAGNOSIS - SPECIFICATION VALUE" .
Is malfunctioning part detected?
Yes >> GO TO 11.
No >> GO TO 9.
9. DETECT MALFUNCTIONING SYSTEM BY SYMPTOM MATRIX CHART
Detect malfunctioning system according to EC-820, "
Symptom Matrix Chart" based on the confirmed symp-
tom in step 4, and determine the trouble diagnosis order based on possible causes and symptom.
>> GO TO 10.
SEF601Z

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INFINITI M35 2006 Factory Service Manual TROUBLE DIAGNOSIS
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10. DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE
Inspect according to Diagnostic Procedure of the s

TROUBLE DIAGNOSIS
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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-
28, "How to Perform Efficient Diagnosis for an Electrical Incident" .
Is malfunctioning part detected?
Ye s > > G O T O 11 .
No >> Monitor input data from related sensors or check voltage of related ECM terminals using CON-
SULT-II. Refer to EC-862, "
CONSULT-II Reference Value in Data Monitor" , EC-836, "ECM Termi-
nals 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-778, "
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
and TCM (Transmission Control Module). (Refer to EC-778, "
HOW TO ERASE EMISSION-
RELATED DIAGNOSTIC INFORMATION" and AT-41, "HOW TO ERASE DTC" .)
2. If the completion of SRT is needed, drive vehicle under the specific driving pattern. Refer to EC-
775, "Driving Pattern" .
3.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.
Some conditions may cause the MIL to come on steady 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.
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INFINITI M35 2006 Factory Service Manual EC-816
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TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
Worksheet Sample
MTBL0017

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INFINITI M35 2006 Factory Service Manual TROUBLE DIAGNOSIS
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DTC Inspection Priority ChartNBS005AF
If some DTCs are displayed at the same time, perform inspections on

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