Infiniti I35 (A33). Manual — part 229

SEF174Y

DTC Confirmation Procedure

NHEC0900

CAUTION:

Always drive vehicle at a safe speed.
NOTE:
If DTC Confirmation Procedure has been previously conducted,
always turn ignition switch OFF and wait at least 10 seconds before
conducting the next test.

WITH CONSULT-II

NHEC0900S01

1)

Turn ignition switch ON and select “DATA MONITOR” mode
with CONSULT-II.

2)

Start engine and warm it up to the normal operating tempera-
ture.

3)

Turn ignition switch OFF and wait at least 10 seconds.

4)

Start engine and keep the engine speed between 3,500 and
4,000 rpm for at least 1 minute under no load.

5)

Let engine idle for 1 minute.

6)

If 1st trip DTC is detected, go to “Diagnostic Procedure”,
EC-260.

WITH GST

NHEC0900S02

Follow the procedure “WITH CONSULT-II” above.

GI

MA

EM

LC

FE

AT

AX

SU

BR

ST

RS

BT

HA

SC

EL

IDX

DTC P0138, P0158 HO2S2

DTC Confirmation Procedure

EC-257

Wiring Diagram

=NHEC0902

BANK 1

NHEC0902S01

MEC541D

SEC661DC

DTC P0138, P0158 HO2S2

Wiring Diagram

EC-258

BANK 2

NHEC0902S02

MEC542D

SEC662DC

GI

MA

EM

LC

FE

AT

AX

SU

BR

ST

RS

BT

HA

SC

EL

IDX

DTC P0138, P0158 HO2S2

Wiring Diagram (Cont’d)

EC-259

Diagnostic Procedure

NHEC0903

1

CHECK GROUND CONNECTIONS

1. Turn ignition switch OFF.
2. Loosen and retighten two engine ground screws.

Refer to “Ground Inspection”, EC-160.

SEC047D

OK or NG

OK

©

GO TO 2.

NG

©

Repair or replace ground connections.

DTC P0138, P0158 HO2S2

Diagnostic Procedure

EC-260