Infiniti Q45 (FY33). Manual - part 147
Description
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 DTC (1st trip) 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
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 data does not appear during the DTC CONFIRMATION PROCEDURE.
VI
The TROUBLE DIAGNOSIS for PXXXX does not indicate the problem area.
Diagnostic Procedure
Erase (1st trip) DTCs. Refer to “HOW TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION” (EC-63).
Check ground terminals. Refer to “Circuit Inspection”, “GROUND INSPECTION” (GI section).
Perform “Incident Simulation Tests” (GI section).
Check connector terminals. Refer to “How to Check Enlarged Contact Spring of Terminal” (GI section).
GI
MA
EM
LC
FE
AT
PD
FA
RA
BR
ST
RS
BT
HA
EL
IDX
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT
H
H
H
EC-117