Nissan Frontier D22. Manual — part 579
DTC P0139, P0159 HO2S2
EC-1419
[VG33ER]
C
D
E
F
G
H
I
J
K
L
M
A
EC
Wiring Diagram
UBS00DVW
BANK 1
BBWA1079E
EC-1420
[VG33ER]
DTC P0139, P0159 HO2S2
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.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
56
OR
Heated oxygen sensor 2
(bank 1)
[Engine is running]
●
Warm-up condition
●
Revving engine from idle to 3,000 rpm quickly after
the following conditions are met
–
Keeping the engine speed between 3,500 and 4,000
rpm for 1 minute and at idle for 1 minute under no
load
0 - Approximately 1.0V
DTC P0139, P0159 HO2S2
EC-1421
[VG33ER]
C
D
E
F
G
H
I
J
K
L
M
A
EC
BANK 2
BBWA1080E
EC-1422
[VG33ER]
DTC P0139, P0159 HO2S2
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.
Diagnostic Procedure
UBS00DVX
1.
RETIGHTEN GROUND SCREWS
1.
Turn ignition switch OFF.
2.
Loosen and retighten engine ground screws.
>> GO TO 2.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
57
Y
Heated oxygen sensor 2
(bank 2)
[Engine is running]
●
Warm-up condition
●
Revving engine from idle to 3,000 rpm quickly after
the following conditions are met
–
Keeping the engine speed between 3,500 and 4,000
rpm for 1 minute and at idle for 1 minute under no
load
0 - Approximately 1.0V
BBIA0418E
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