Nissan Frontier D22. Manual - part 574

DTC P0134, P0154 HO2S1

EC-1399

[VG33ER]

C

D

E

F

G

H

I

J

K

L

M

A

EC

3.

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

–

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

4.

If NG, go to 

EC-1404, "Diagnostic Procedure"

 .

SEF919UA

EC-1400

[VG33ER]

DTC P0134, P0154 HO2S1

Wiring Diagram

UBS00DVH

BANK 1

BBWA1075E

DTC P0134, P0154 HO2S1

EC-1401

[VG33ER]

C

D

E

F

G

H

I

J

K

L

M

A

EC

Specification data are reference values and are measured between each terminal and ground.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than the ECM terminals, such as the ground.

: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.

TER-

MINAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

50

B

Heated oxygen sensor 
1 (front) (bank 1)

[Engine is running]

●

Warm-up condition

●

Engine speed is 2,000 rpm

0 - Approximately 1.0V

SEF002V

EC-1402

[VG33ER]

DTC P0134, P0154 HO2S1

BANK 2

BBWA1076E