Infiniti G35 (V35) Sedan. Manual — part 587
EC-494
< ECU DIAGNOSIS >
[VQ35HR]
ECM
48
Ground
B
Sensor ground
[Throttle position sensor
(bank 2)]
—
[Engine is running]
• Warm-up condition
• Idle speed
0V
49
Ground
L
Throttle control motor
(Close) (bank 2)
Output
[Ignition switch: ON]
• Engine stopped
• Selector lever: D (A/T) or 1st (M/
T)
• Accelerator pedal: In the middle
of releasing operation
0 - 14V
50
Ground
V
Throttle control motor
(Open) (bank 2)
Output
[Ignition switch: ON]
• Engine stopped
• Selector lever: D (A/T) or 1st (M/
T)
• Accelerator pedal: Fully de-
pressed
0 - 14V
[Ignition switch: ON]
• Engine stopped
• Selector lever: D (A/T) or 1st (M/
T)
• Accelerator pedal: Fully re-
leased
0 - 14V
52
Ground
R
Throttle control motor re-
lay power supply (bank
2)
Input
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
53
Ground
P
Ignition switch
Input
[Ignition switch: OFF]
0V
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
57
Ground
L
A/F sensor 1 (bank 1)
Input
[Ignition switch: ON]
2.2V
58
Ground
GR
Exhaust valve timing
control position sensor
(bank 1)
Input
[Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idle
4.0 - 5.0
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm
4.0 - 5.0
Terminal No.
Wire
color
Description
Condition
Value
(Approx.)
+
-–
Signal name
Input/
Output
JMBIA0033GB
JMBIA0031GB
JMBIA0032GB
JMBIA0043GB
JMBIA0044GB
ECM
EC-495
< ECU DIAGNOSIS >
[VQ35HR]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
59
Ground
O
Camshaft position sen-
sor (PHASE) (bank 1)
Input
[Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idle
3.0 - 5.0
[Engine is running]
• Engine speed: 2,000 rpm
3.0 - 5.0
60
Ground
R
Sensor power supply
[Camshaft position sen-
sor (PHASE) (bank 1),
Exhaust valve timing
control position sensor
(bank 1), Power steering
pressure sensor]
—
[Ignition switch: ON]
5V
61
Ground
R
A/F sensor 1 (bank 1)
Input
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm
1.8V
Output voltage varies with air fuel
ratio.
62
Ground
G
Exhaust valve timing
control position sensor
(bank 2)
Input
[Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idle
4.0 - 5.0
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm
4.0 - 5.0
Terminal No.
Wire
color
Description
Condition
Value
(Approx.)
+
-–
Signal name
Input/
Output
JMBIA0045GB
JMBIA0046GB
JMBIA0043GB
JMBIA0044GB
EC-496
< ECU DIAGNOSIS >
[VQ35HR]
ECM
63
Ground
SB
Camshaft position sen-
sor (PHASE) (bank 2)
Input
[Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idle
3.0 - 5.0
[Engine is running]
• Engine speed: 2,000 rpm
3.0 - 5.0
64
Ground
W
Sensor power supply
[Camshaft position sen-
sor (PHASE) (bank 2),
Exhaust valve timing
control position sensor
(bank 2), Battery current
sensor]
—
[Ignition switch: ON]
5V
65
Ground
V
A/F sensor 1 (bank 2)
Input
[Ignition switch: ON]
2.2V
66
Ground
LG
A/F sensor 1 (bank 2)
Input
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm
1.8V
Output voltage varies with air fuel
ratio.
67
Ground
P
Intake air temperature
sensor (bank 1)
Input
[Engine is running]
0 - 4.8V
Output voltage varies with intake
air temperature.
68
Ground
LG
Sensor ground
[Mass air flow sensor
(bank 1), Intake air tem-
perature sensor (bank
1)]
—
[Engine is running]
• Warm-up condition
• Idle speed
0V
69
Ground
W
Knock sensor (bank 2)
Input
[Engine is running]
• Idle speed
2.5V*
1
71
Ground
Y
Engine coolant tempera-
ture sensor
Input
[Engine is running]
0 - 4.8V
Output voltage varies with engine
coolant temperature.
72
Ground
—
Sensor ground
(Knock sensor)
—
[Engine is running]
• Warm-up condition
• Idle speed
0V
73
Ground
W
Knock sensor (bank 1)
Input
[Engine is running]
• Idle speed
2.5V*
1
76
Ground
W
Heated oxygen sensor 2
(bank 1)
Input
[Engine is running]
• Revving engine from idle to
3,000 rpm quickly after the fol-
lowing conditions are met
- Engine: after warming up
- Keeping the engine speed be-
tween 3,500 and 4,000 rpm for 1
minute and at idle for 1 minute
under no load
0 - 1.0V
Terminal No.
Wire
color
Description
Condition
Value
(Approx.)
+
-–
Signal name
Input/
Output
JMBIA0045GB
JMBIA0046GB
ECM
EC-497
< ECU DIAGNOSIS >
[VQ35HR]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
77
Ground
SB
Mass air flow sensor
(bank 1)
Input
[Engine is running]
• Warm-up condition
• Idle speed
0.8 - 1.1V
[Engine is running]
• Warm-up condition
• Engine speed: 2,500 rpm
1.4 - 1.7V
78
Ground
G
Engine oil temperature
sensor
Input
[Engine is running]
0 - 4.8V
Output voltage varies with engine
oil temperature.
79
Ground
GR
Mass air flow sensor
(bank 2)
Input
[Engine is running]
• Warm-up condition
• Idle speed
0.8 - 1.1V
[Engine is running]
• Warm-up condition
• Engine speed: 2,500 rpm
1.4 - 1.7V
80
Ground
O
Heated oxygen sensor 2
(bank 2)
Input
[Engine is running]
• Revving engine from idle to
3,000 rpm quickly after the fol-
lowing conditions are met
- Engine: after warming up
- Keeping the engine speed be-
tween 3,500 and 4,000 rpm for 1
minute and at idle for 1 minute
under no load
0 - 1.0V
81
82
85
86
89
90
Ground
R
V
BR
W
GR
O
Fuel injector No. 3
Fuel injector No. 6
Fuel injector No. 2
Fuel injector No. 5
Fuel injector No. 1
Fuel injector No. 4
Output
[Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idle
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm
BATTERY VOLTAGE
(11 - 14V)
83
Ground
G
Intake air temperature
sensor (bank 2)
Input
[Engine is running]
0 - 4.8V
Output voltage varies with intake
air temperature.
84
Ground
B
Sensor ground
(Heated oxygen sensor
2, Engine coolant tem-
perature sensor, Engine
oil temperature sensor)
—
[Engine is running]
• Warm-up condition
• Idle speed
0V
87
Ground
Y
Power steering pressure
sensor
Output
[Engine is running]
• Steering wheel: Being turned
0.5 - 4.5V
[Engine is running]
• Steering wheel: Not being turned
0.4 - 0.8V
Terminal No.
Wire
color
Description
Condition
Value
(Approx.)
+
-–
Signal name
Input/
Output
JMBIA0047GB
JMBIA0048GB
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