Nissan Frontier D22. Manual — part 416
DTC P0128 THERMOSTAT FUNCTION
EC-767
[VG33E]
C
D
E
F
G
H
I
J
K
L
M
A
EC
Component Inspection
UBS00DHM
ENGINE COOLANT TEMPERATURE SENSOR
1.
Check resistance as shown in the figure.
<Reference data>
2.
If NG, replace engine coolant temperature sensor.
Removal and Installation
UBS00DHN
ENGINE COOLANT TEMPERATURE SENSOR
Refer to
EM-80, "OUTER COMPONENT PARTS"
.
SEF152P
Temperature
°C (°F)
Resistance k
Ω
20 (68)
2.1 - 2.9
50 (122)
0.68 - 1.00
90 (194)
0.236 - 0.260
SEF012P
EC-768
[VG33E]
DTC P0132, P0152 HO2S1
DTC P0132, P0152 HO2S1
PFP:22690
Component Description
UBS00DHO
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
UBS00DHP
Specification data are reference values.
On Board Diagnosis Logic
UBS00DHQ
To judge the malfunction, the diagnosis checks that the heated oxy-
gen sensor 1 output is not inordinately high.
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.
PBIB1847E
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0132
(Bank 1)
Heated oxygen sensor
1 circuit high voltage
An excessively high voltage from the sensor is
sent to ECM.
●
Harness or connectors
(The sensor circuit is open or shorted)
●
Heated oxygen sensor 1
P0152
(Bank 2)
DTC P0132, P0152 HO2S1
EC-769
[VG33E]
C
D
E
F
G
H
I
J
K
L
M
A
EC
DTC Confirmation Procedure
UBS00DHR
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 5 seconds before conducting the next test.
WITH CONSULT-II
1.
Start engine and warm it up to normal operating temperature.
2.
Turn ignition switch OFF and wait at least 5 seconds.
3.
Turn ignition switch ON.
4.
Select “DATA MONITOR” mode with CONSULT-II.
5.
Restart engine and let it idle for 2 minutes.
6.
If 1st trip DTC is detected, go to
EC-773, "Diagnostic Procedure"
.
WITH GST
1.
Start engine and warm it up to normal operating temperature.
2.
Turn ignition switch OFF and wait at least 10 seconds.
3.
Restart engine and let it idle for 2 minutes.
4.
Turn ignition switch OFF and wait at least 10 seconds.
5.
Restart engine and let it idle for 2 minutes.
6.
Select MODE 3 with GST.
7.
If DTC is detected, go to
EC-773, "Diagnostic Procedure"
●
When using GST, DTC Confirmation Procedure should be performed twice as much as when using
CONSULT-II because GST cannot display MODE 7 (1st trip DTC) concerning this diagnosis. There-
fore, using CONSULT-II is recommended.
SEF174Y
EC-770
[VG33E]
DTC P0132, P0152 HO2S1
Wiring Diagram
UBS00DHS
BANK 1
BBWA1075E
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