Infiniti G35 (V35). Manual — part 324
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
EC-177
C
D
E
F
G
H
I
J
K
L
M
A
EC
Wiring Diagram
NBS000V7
BANK 1
TBWM0816E
EC-178
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
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.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
2
OR
A/F sensor 1 heater
(bank 1)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 5V
16
W
A/F sensor 1 (bank 1)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 3.1V
35
R
Approximately 2.6V
56
L
Approximately 2.3V
75
Y
Approximately 2.3V
PBIB1584E
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
EC-179
C
D
E
F
G
H
I
J
K
L
M
A
EC
BANK 2
TBWM0817E
EC-180
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
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.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnostic Procedure
NBS000V8
1.
CHECK GROUND CONNECTIONS
1.
Turn ignition switch OFF.
2.
Loosen and retighten two ground screws on the body. Refer to
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace ground connections.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
24
OR
A/F sensor 1 heater
(bank 2)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 5V
57
R
A/F sensor 1
(bank 2)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 2.6V
58
L
Approximately 2.3V
76
W
Approximately 3.1V
77
Y
Approximately 2.3V
PBIB1584E
PBIB2192E
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