Infiniti I30 (A33). Manual

SEF615Z

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

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.

(1st trip) DTC does not appear during the DTC Confirmation Procedure.

The Diagnostic Procedure for PXXXX does not indicate the problem area.

Diagnostic Procedure

NHEC0046

INSPECTION START

Erase (1st trip) DTCs. Refer to “HOW TO ERASE EMISSION — RELATED INFORMATION”, EC-80.

GO TO 2.

CHECK GROUND TERMINALS

Check ground terminals for corroding or loose connection.
Refer to GI-30, “GROUND INSPECTION”.

OK or NG

GO TO 3.

Repair or replace.

SEARCH FOR ELECTRICAL INCIDENT

Perform GI-25, “Incident Simulation Tests”.

OK or NG

GO TO 4.

Repair or replace.

CHECK CONNECTOR TERMINALS

Refer to GI-22, “How to Check Enlarged Contact Spring of Terminal”.

OK or NG

INSPECTION END

Repair or replace connector.

TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT

Description

EC-144

Main Power Supply and Ground Circuit

WIRING DIAGRAM

NHEC0047

MEC134D

IDX

TROUBLE DIAGNOSIS FOR POWER SUPPLY

Main Power Supply and Ground Circuit

EC-145

Infiniti I30 (A33). Manual - part 207