Infiniti QX4 (R50). Manual - part 182

3)

Check the following with engine speed held at 2,000 rpm con-
stant under no load.

I

The voltage does not remain in the range of 0.2 - 0.4V.

4)

If NG, go to “Diagnostic Procedure”, EC-198.

GI

MA

EM

LC

FE

AT

TF

PD

AX

SU

BR

ST

RS

BT

HA

SC

EL

IDX

DTC P0130, P0150 HEATED OXYGEN SENSOR 1 (FRONT) (BANK 1)/(BANK 2)

(CIRCUIT)

Overall Function Check (Cont’d)

EC-195

Wiring Diagram

=NBEC0092

RIGHT BANK

NBEC0092S01

MEC947C

DTC P0130, P0150 HEATED OXYGEN SENSOR 1 (FRONT) (BANK 1)/(BANK 2)

(CIRCUIT)

Wiring Diagram

EC-196

LEFT BANK

NBEC0092S02

MEC948C

GI

MA

EM

LC

FE

AT

TF

PD

AX

SU

BR

ST

RS

BT

HA

SC

EL

IDX

DTC P0130, P0150 HEATED OXYGEN SENSOR 1 (FRONT) (BANK 1)/(BANK 2)

(CIRCUIT)

Wiring Diagram (Cont’d)

EC-197

Diagnostic Procedure

NBEC0093

1

INSPECTION START

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

SEF959Y

3. Make sure HO2S1 (front) harness protector color, and disconnect corresponding heated oxygen sensor 1 (front) har-

ness connector.

SEF505Y

SEF965Y

SEF966Y

©

GO TO 2.

DTC P0130, P0150 HEATED OXYGEN SENSOR 1 (FRONT) (BANK 1)/(BANK 2)

(CIRCUIT)

Diagnostic Procedure

EC-198