Infiniti FX35 / FX45. Manual — part 510
DTC P0130, P0150 A/F SENSOR 1
EC-801
< SERVICE INFORMATION >
[VK45DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
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-
MI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
2
P
A/F sensor 1 heater
(Bank 1)
[Engine is running]
• Warm-up condition
• Idle speed
Approximately 5V
16
R
A/F sensor 1 (Bank 1)
[Engine is running]
• Warm-up condition
• Idle speed
Approximately 3.1V
35
G
Approximately 2.6V
56
B
Approximately 2.3V
75
OR
Approximately 2.3V
PBIB1584E
EC-802
< SERVICE INFORMATION >
[VK45DE]
DTC P0130, P0150 A/F SENSOR 1
BANK 2
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-III.
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.
TBWM1374E
DTC P0130, P0150 A/F SENSOR 1
EC-803
< SERVICE INFORMATION >
[VK45DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnosis Procedure
INFOID:0000000001326648
1.
CHECK GROUND CONNECTIONS
1.
Turn ignition switch OFF.
2.
Loosen and retighten three ground screws on the body.
Refer to
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace ground connections.
2.
CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT
1.
Disconnect air fuel ratio (A/F) sensor 1 harness connector.
2.
Turn ignition switch ON.
TER-
MI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
24
P
A/F sensor 1 heater
(Bank 2)
[Engine is running]
• Warm-up condition
• Idle speed
Approximately 5V
57
G
A/F sensor 1 (Bank 2)
[Engine is running]
• Warm-up condition
• Idle speed
Approximately 2.6V
58
L
Approximately 2.3V
76
R
Approximately 3.1V
77
OR
Approximately 2.3V
PBIB1584E
PBIB2195E
: Vehicle front
1.
A/F sensor 1 (Bank 2) harness con-
nector
2.
A/F sensor 1 (Bank 1) harness con-
nector
PBIB3246E
EC-804
< SERVICE INFORMATION >
[VK45DE]
DTC P0130, P0150 A/F SENSOR 1
3.
Check voltage between A/F sensor 1 terminal 3 and ground with
CONSULT-III or tester.
OK or NG
OK
>> GO TO 4.
NG
>> GO TO 3.
3.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E19, F49
• IPDM E/R connector E7
• 10A fuse
• Harness for open or short between A/F sensor 1 and fuse
>> Repair or replace harness or connectors.
4.
CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check harness continuity between A/F sensor 1 terminal and ECM terminal as follows.
Refer to Wiring Diagram.
4.
Check harness continuity between the following terminals and ground.
Refer to Wiring Diagram.
5.
Also check harness for short to power.
OK or NG
OK
>> GO TO 5.
Voltage: Battery voltage
PBIB1683E
A/F sensor 1 terminal
ECM terminal
Bank 1
1
16
2
75
5
35
6
56
Bank 2
1
76
2
77
5
57
6
58
Continuity should exist.
Bank 1
Bank 2
A/F sensor 1 terminal
ECM terminal
A/F sensor 1 terminal
ECM terminal
1
16
1
76
2
75
2
77
5
35
5
57
6
56
6
58
Continuity should not exist.
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