Infiniti G35 (V35). Manual — part 343
DTC P0130, P0150 A/F SENSOR 1
EC-253
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.
Pulse signal is measure 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
NBS000YV
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
EC-254
DTC P0130, P0150 A/F SENSOR 1
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.
3.
Check voltage between A/F sensor 1 terminal 3 and ground with
CONSULT-II or tester.
OK or NG
OK
>> GO TO 4.
NG
>> GO TO 3.
3.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors M72, F102
●
Harness connectors E108, M15
●
IPDM E/R harness connector E7
●
15A fuse
●
Harness for open or short between A/F sensor 1 and fuse
>> Repair or replace harness or connectors.
Voltage: Battery voltage
PBIB2100E
PBIB1683E
DTC P0130, P0150 A/F SENSOR 1
EC-255
C
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EC
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 the following terminals.
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.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.
CHECK INTERMITTENT INCIDENT
Perform
EC-151, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
OK or NG
OK
>> GO TO 5.
NG
>> Repair or replace.
6.
REPLACE AIR FUEL RATIO (A/F) SENSOR 1
Replace malfunctioning A/F sensor 1.
CAUTION:
●
Discard any A/F sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a
hard surface such as a concrete floor; use a new one.
●
Before installing new A/F sensor, clean exhaust system threads (using Oxygen Sensor Thread
Cleaner tool J-43897-18 or J-43897-12) and approved anti-seize lubricant.
>> INSPECTION END
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.
EC-256
DTC P0130, P0150 A/F SENSOR 1
Removal and Installation
NBS000YW
AIR FUEL RATIO (A/F) SENSOR 1
Refer to
EM-25, "EXHAUST MANIFOLD AND THREE WAY CATALYST"
.
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