Nissan Almera Tino V10. Manual — part 465
EC-686
[QG (WITHOUT EURO-OBD)]
DTC P0134, P0154 HO2S1 (A/T MODELS)
DTC P0134, P0154 HO2S1 (A/T MODELS)
PFP:22690
Component Description
EBS00QWZ
The heated oxygen sensor 1 is placed into the EXHAUST MANI-
FOLD. 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
EBS00QX0
Specification data are reference values.
On Board Diagnosis Logic
EBS00QX1
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 dur-
ing 10 seconds.
SEF237U
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0134
0134
(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
0154
(Bank 2)
DTC P0134, P0154 HO2S1 (A/T MODELS)
EC-687
[QG (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
Overall Function Check
EBS00QX2
Use this procedure to check the overall function of the heated oxygen sensor 1 circuit. During this check, a
DTC might not be confirmed.
WITH CONSULT-II
1.
Start engine and warm it up to normal operating temperature.
2.
Select “MANU TRIG” in “DATA MONITOR” mode with CON-
SULT-II, and select “HO2S1 (B1)” and “HO2S1 (B2)”.
3.
Hold engine speed at 2,000 rpm under no load.
4.
Make sure that the indications do not remain in the range
between 0.2 to 0.4V.
5.
If NG, go to
EC-691, "Diagnostic Procedure"
.
WITHOUT CONSULT-II
1.
Start engine and warm it up to normal operating temperature.
2.
Set voltmeter probes between ECM terminal 35 [HO2S1 (B1) signal] or 36 [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 does not remain in the range of 0.2 to 0.4V.
4.
If NG, go to
EC-691, "Diagnostic Procedure"
.
SEF646Y
MBIB0019E
EC-688
[QG (WITHOUT EURO-OBD)]
DTC P0134, P0154 HO2S1 (A/T MODELS)
Wiring Diagram
EBS00QX3
BANK 1
YEC444A
DTC P0134, P0154 HO2S1 (A/T MODELS)
EC-689
[QG (WITHOUT EURO-OBD)]
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 ECM terminals, such as the ground.
TERMI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
35
W
Heated oxygen sensor 1
(bank 1)
[Engine is running]
●
Warm-up condition
●
Engine speed is 2,000 rpm.
0 - Approximately 1.0V
(Periodically change)
74
B
Sensors' ground
(Heated oxygen sensor)
[Engine is running]
●
Idle speed
Approximately 0V
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