Infiniti I30 (A33). Manual — part 207
SEF615Z
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
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BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS — SPECIFICATION VALUE
Diagnostic Procedure (Cont’d)
EC-143
Description
NHEC0045
Intermittent incidents (I/I) may occur. In many cases, the problem resolves itself (the part or circuit function
returns to normal without intervention). It is important to realize that the symptoms described in the custom-
er’s complaint often do not recur on (1st trip) DTC visits. Realize also that the most frequent cause of I/I
occurrences is poor electrical connections. Because of this, the conditions under which the incident occurred
may not be clear. Therefore, circuit checks made as part of the standard diagnostic procedure may not indi-
cate the specific problem area.
COMMON I/I REPORT SITUATIONS
NHEC0045S01
STEP in Work Flow
Situation
II
The CONSULT-II is used. The SELF-DIAG RESULTS screen shows time data other than “0” or “[1t]”.
III
The symptom described by the customer does not recur.
IV
(1st trip) DTC does not appear during the DTC Confirmation Procedure.
VI
The Diagnostic Procedure for PXXXX does not indicate the problem area.
Diagnostic Procedure
NHEC0046
1
INSPECTION START
Erase (1st trip) DTCs. Refer to “HOW TO ERASE EMISSION — RELATED INFORMATION”, EC-80.
©
GO TO 2.
2
CHECK GROUND TERMINALS
Check ground terminals for corroding or loose connection.
Refer to GI-30, “GROUND INSPECTION”.
OK or NG
OK
©
GO TO 3.
NG
©
Repair or replace.
3
SEARCH FOR ELECTRICAL INCIDENT
Perform GI-25, “Incident Simulation Tests”.
OK or NG
OK
©
GO TO 4.
NG
©
Repair or replace.
4
CHECK CONNECTOR TERMINALS
Refer to GI-22, “How to Check Enlarged Contact Spring of Terminal”.
OK or NG
OK
©
INSPECTION END
NG
©
Repair or replace connector.
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT
Description
EC-144
Main Power Supply and Ground Circuit
WIRING DIAGRAM
NHEC0047
MEC134D
GI
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TROUBLE DIAGNOSIS FOR POWER SUPPLY
Main Power Supply and Ground Circuit
EC-145
MEC717C
SEC002C
TROUBLE DIAGNOSIS FOR POWER SUPPLY
Main Power Supply and Ground Circuit (Cont’d)
EC-146
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