Nissan Frontier D22. Manual - part 421

DTC P0133, P0153 HO2S1

EC-787

[VG33E]

C

D

E

F

G

H

I

J

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M

A

EC

8. 

CHECK PCV VALVE

With engine running at idle, remove PCV valve from rocker cover;
make sure that a hissing noise will be heard as air passes through it
and a strong vacuum should be felt immediately when a finger is
placed over valve inlet.

OK or NG

OK (With CONSULT-II)>>GO TO 9.
OK (Without CONSULT-II)>>GO TO 10.
NG

>> Replace PCV valve.

SEC137A

EC-788

[VG33E]

DTC P0133, P0153 HO2S1

9. 

CHECK HEATED OXYGEN SENSOR 1

With CONSULT-II

1.

Start engine and warm it up to normal operating temperature.

2.

Select  “MANU TRIG” in “DATA MONITOR” mode with CONSULT-II, and select “HO2S1 (B1)/(B2)” and
“HO2S1 MNTR (B1)/(B2)”.

3.

Hold engine speed at 2,000 rpm under no load during the following steps.

4.

Touch “RECORD” on CONSULT-II screen.

5.

Check the following.

–

“HO2S1 MNTR (B1)/(B2)” in “DATA MONITOR” mode changes
from “RICH” to “LEAN” to “RICH” more than 5 times in 10 sec-
onds.
5 times (cycles) are counted as shown below.

–

“HO2S1 (B1)/(B2)” voltage goes above 0.6V at least once. 

–

“HO2S1 (B1)/(B2)” voltage goes below 0.3V at least once.

–

“HO2S1 (B1)/(B2)” voltage never exceeds 1.0V.

CAUTION:

●

Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7
in) onto a hard surface such as a concrete floor; use a new one.

●

Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread
Cleaner tool J-43897-18 or J-43897-12 and approved anti-seize lubricant.

OK or NG

OK

>> GO TO 11.

NG

>> Replace malfunctioning heated oxygen sensor 1.

SEF967Y

SEF647Y

SEF648Y

DTC P0133, P0153 HO2S1

EC-789

[VG33E]

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D

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EC

10. 

CHECK FRONT HEATED OXYGEN SENSOR 1

 Without CONSULT-II

1.

Start engine and warm it up to normal operating temperature.

2.

Set voltmeter probes between ECM terminal 50 [HO2S1 (B1) signal] or 51 [HO2S1 (B2) signal] and
engine ground.

3.

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

●

The voltage fluctuates between 0 to 0.3V and 0.6 to 1.0V more
than 5 times within 10 seconds.

●

The maximum voltage is over 0.6V at least 1 time.

●

The minimum voltage is below 0.3V at least 1 time.

●

The voltage never exceeds 1.0V.

1 time: 0 - 0.3V 

→ 0.6 - 1.0V → 0 - 0.3V

2 times: 0 - 0.3V 

→ 0.6 - 1.0V → 0 - 0.3V → 0.6 - 1.0V → 0 - 0.3V

CAUTION:

●

Discard any heated oxygen sensor which has been dropped
from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor; use a new
one.

●

Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread
Cleaner tool J-43897-18 or J-43897-12 and approved anti-seize lubricant.

OK or NG

OK

>> GO TO 11.

NG

>> Replace malfunctioning heated oxygen sensor 1.

11. 

CHECK INTERMITTENT INCIDENT

Refer to 

EC-696, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

 .

>> INSPECTION END.

Removal and Installation

UBS00DI2

HEATED OXYGEN SENSOR 1

Refer to 

EM-80, "OUTER COMPONENT PARTS"

 .

PBIB2157E

EC-790

[VG33E]

DTC P0134, P0154 HO2S1

DTC P0134, P0154 HO2S1

PFP:22690

Component Description

UBS00DI3

The heated oxygen sensor 1 is placed into the exhaust manifold. It
detects the amount of oxygen in the exhaust gas compared to the
outside air. The heated oxygen sensor 1 has a closed-end tube
made of ceramic zirconia. The zirconia generates voltage from
approximately 1V in richer conditions to 0V in leaner conditions. The
heated oxygen sensor 1 signal is sent to the ECM. The ECM adjusts
the injection pulse duration to achieve the ideal air-fuel ratio. The
ideal air-fuel ratio occurs near the radical change from 1V to 0V.

CONSULT-II Reference Value in Data Monitor Mode

UBS00DI4

Specification data are reference values.

On Board Diagnosis Logic

UBS00DI5

Under the condition in which the heated oxygen sensor 1 signal is
not input, the ECM circuits will read a continuous approximately
0.3V. Therefore, for this diagnosis, the time that output voltage is
within 200 to 400 mV range is monitored, and the diagnosis checks
that this time is not inordinately long.

SEF463R

SEF288D

MONITOR ITEM

CONDITION

SPECIFICATION

HO2S1 (B1)
HO2S1 (B2)

●

Engine: After warming up

Maintaining engine speed at 2,000 
rpm

0 - 0.3V 

←→ Approx. 0.6 - 1.0V

HO2S1 MNTR 
(B1)
HO2S1 MNTR 
(B2)

LEAN 

←→ RICH

Changes more than 5 times during 
10 seconds.

SEF237U

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0134
(Bank 1)

Heated oxygen sensor 
1 circuit no activity 
detected

The voltage from the sensor is constantly 
approx. 0.3V.

●

Harness or connectors
(The sensor circuit is open or shorted)

●

Heated oxygen sensor 1

P0154
(Bank 2)