Nissan Frontier D22. Manual — part 548

TROUBLE DIAGNOSIS - SPECIFICATION VALUE

EC-1295

[VG33ER]

C

D

E

F

G

H

I

J

K

L

M

A

EC

SEF768Z

EC-1296

[VG33ER]

TROUBLE DIAGNOSIS - SPECIFICATION VALUE

LEC090A

TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT

EC-1297

[VG33ER]

C

D

E

F

G

H

I

J

K

L

M

A

EC

TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT

PFP:00006

Description

UBS00DSK

Intermittent incidents (I/I) may occur. In many cases, the malfunction resolves itself (the part or circuit function
returns to normal without intervention). It is important to realize that the symptoms described in the customer's
complaint often do not recur on (1st trip) DTC visits. Realize also that the most frequent cause of I/I occur-
rences 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 indicate the
specific malfunctioning area.

Common I/I Report Situations

Diagnostic Procedure

UBS00DSL

1.

INSPECTION START

Erase (1st trip) DTCs. Refer to

EC-1233, "HOW TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMA-

TION"

.

>> GO TO 2.

2.

CHECK GROUND TERMINALS

Check ground terminals for corroding or loose connection.
Refer to

GI-25, "How to Perform Efficient Diagnosis for an Electrical Incident"

.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace.

3.

SEARCH FOR ELECTRICAL INCIDENT

Perform

GI-25, "How to Perform Efficient Diagnosis for an Electrical Incident"

.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace.

4.

CHECK CONNECTOR TERMINALS

Refer to

GI-22, "How to Check Terminal"

.

OK or NG

OK

>> INSPECTION END.

NG

>> Repair or replace connector.

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 malfunctioning area.

EC-1298

[VG33ER]

POWER SUPPLY CIRCUIT FOR ECM

POWER SUPPLY CIRCUIT FOR ECM

PFP:24110

Wiring Diagram

UBS00DSM

BBWA0465E