Infiniti G37 Coupe. Manual — part 586
ECM
EC-525
< ECU DIAGNOSIS >
[VQ37VHR]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
76
(W)
128
(B)
Heated oxygen sensor 2
(bank 1)
Input
[Engine is running]
• Revving engine from idle to 3,000 rpm
quickly after the following conditions are
met
- Engine: after warming up
- Keeping the engine speed between
3,500 and 4,000 rpm for 1 minute and at
idle for 1 minute under no load
0 - 1.0V
77
(SB)
68
(LG)
Mass air flow sensor
(bank 1)
Input
[Engine is running]
• Warm-up condition
• Idle speed
0.7 - 1.2V
[Engine is running]
• Warm-up condition
• Engine speed: 2,500 rpm
1.3 - 1.7V
78
(G)
84
(B)
Engine oil temperature
sensor
Input
[Engine is running]
0 - 4.8V
Output voltage varies with engine
oil temperature.
79
(BR)
94
(Y)
Mass air flow sensor
(bank 2)
Input
[Engine is running]
• Warm-up condition
• Idle speed
0.7 - 1.2V
[Engine is running]
• Warm-up condition
• Engine speed: 2,500 rpm
1.3 - 1.7V
80
(O)
128
(B)
Heated oxygen sensor 2
(bank 2)
Input
[Engine is running]
• Revving engine from idle to 3,000 rpm
quickly after the following conditions are
met
- Engine: after warming up
- Keeping the engine speed between
3,500 and 4,000 rpm for 1 minute and at
idle for 1 minute under no load
0 - 1.0V
81
(R)
128
(B)
Fuel injector No. 3
Output
[Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes depending on
rpm at idle
BATTERY VOLTAGE
(11 - 14V)
82
(V)
Fuel injector No. 6
85
(BR)
Fuel injector No. 2
86
(W)
Fuel injector No. 5
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm
BATTERY VOLTAGE
(11 - 14V)
89
(GR)
Fuel injector No. 1
90
(O)
Fuel injector No. 4
83
(LG)
94
(Y)
Intake air temperature
sensor (bank 2)
Input
[Engine is running]
0 - 4.8V
Output voltage varies with intake
air temperature.
Terminal No.
(Wire color)
Description
Condition
Value
(Approx.)
+
-–
Signal name
Input/
Output
JMBIA0047GB
JMBIA0048GB
EC-526
< ECU DIAGNOSIS >
[VQ37VHR]
ECM
84
(B)
—
Sensor ground
(Heated oxygen sensor
2, Engine coolant tem-
perature sensor, Engine
oil temperature sensor)
—
—
—
87
(Y)
96
(P)
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
91
(SB)
95
(G)
Battery current sensor
Input
[Engine is running]
• Battery: Fully charged*
2
• Idle speed
2.6 - 3.5V
92
(G)
—
Sensor ground
[Camshaft position sen-
sor (PHASE) (bank 2)]
—
—
—
93
(P)
128
(B)
Power supply for ECM
(Back-up)
Input
[Ignition switch: OFF]
BATTERY VOLTAGE
(11 - 14V)
94
(Y)
—
Sensor ground
[Mass air flow sensor
(bank 2)]
—
—
—
95
(G)
—
Sensor ground
(Battery current sensor)
—
—
—
96
(P)
—
Sensor ground
[Camshaft position sen-
sor (PHASE) (bank
1),Manifold absolute
pressure (MAP) sensor,
Power steering pressure
sensor]
—
—
—
97
(R)
100
(W)
Accelerator pedal posi-
tion sensor 1
Input
[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully released
0.45 - 1.00V
[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully depressed
4.2 - 4.8V
98
(P)
104
(GR)
Accelerator pedal posi-
tion sensor 2
Input
[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully released
0.22 - 0.50V
[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully depressed
2.1 - 2.5V
99
(L)
100
(W)
Sensor power supply
(Accelerator pedal posi-
tion sensor 1)
—
[Ignition switch: ON]
5V
100
(W)
—
Sensor ground
(Accelerator pedal posi-
tion sensor 1)
—
—
—
Terminal No.
(Wire color)
Description
Condition
Value
(Approx.)
+
-–
Signal name
Input/
Output
ECM
EC-527
< ECU DIAGNOSIS >
[VQ37VHR]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
101
(SB)
108
(Y)
ICC steering switch
(models with ICC sys-
tem)
Input
[Ignition switch: ON]
• ICC steering switch: OFF
4.3V
[Ignition switch: ON]
• MAIN switch: Pressed
0V
[Ignition switch: ON]
• CANCEL switch: Pressed
1.3V
[Ignition switch: ON]
• RESUME/ACCELERATE switch:
Pressed
3.7V
[Ignition switch: ON]
• SET/COAST switch: Pressed
3V
[Ignition switch: ON]
• DISTANCE switch: Pressed
2.2V
101
(SB)
108
(Y)
ASCD steering switch
(models with ASCD sys-
tem)
Input
[Ignition switch: ON]
• ASCD steering switch: OFF
4V
[Ignition switch: ON]
• MAIN switch: Pressed
0V
[Ignition switch: ON]
• CANCEL switch: Pressed
1V
[Ignition switch: ON]
• RESUME/ACCELERATE switch:
Pressed
3V
[Ignition switch: ON]
• SET/COAST switch: Pressed
2V
102
(GR)
112
(SB)
EVAP control system
pressure sensor
Input
[Ignition switch: ON]
1.8 - 4.8V
103
(G)
104
(GR)
Sensor power supply
(Accelerator pedal posi-
tion sensor 2)
—
[Ignition switch: ON]
5V
104
(GR)
—
Sensor ground
(Accelerator pedal posi-
tion sensor 2)
—
—
—
105
(L)
116
(P)
Refrigerant pressure
sensor
Input
[Engine is running]
• Warm-up condition
• Both A/C switch and blower fan motor
switch: ON (Compressor operates)
1.0 - 4.0V
106
(W)
128
(B)
Fuel tank temperature
sensor
Input
[Engine is running]
0 - 4.8V
Output voltage varies with fuel
tank temperature.
107
(BR)
112
(SB)
Sensor power supply
(EVAP control system
pressure sensor)
—
[Ignition switch: ON]
5V
108
(Y)
—
Sensor ground
(ASCD/ICC steering
switch)
—
—
—
109
(G)
128
(B)
PNP switch
Input
[Ignition switch: ON]
• Selector lever: P or N (A/T), Neutral (M/
T)
BATTERY VOLTAGE
(11 - 14V)
[Ignition switch: ON]
• Selector lever: Except above
0V
Terminal No.
(Wire color)
Description
Condition
Value
(Approx.)
+
-–
Signal name
Input/
Output
EC-528
< ECU DIAGNOSIS >
[VQ37VHR]
ECM
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
110
(R)
128
(B)
Engine speed output sig-
nal
Output
[Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes depending on
rpm at idle
1V
[Engine is running]
• Engine speed is 2,000 rpm
1V
111
(O)
116
(P)
Sensor power supply
(Refrigerant pressure
sensor)
—
[Ignition switch: ON]
5V
112
(SB)
—
Sensor ground
(EVAP control system
pressure sensor)
—
—
—
113
(P)
—
CAN communication line
Input/
Output
—
—
114
(L)
—
CAN communication line
Input/
Output
—
—
116
(P)
—
Sensor ground
(Refrigerant pressure
sensor)
—
—
—
117
(V)
128
(B)
Data link connector
Input/
Output
[Ignition switch: ON]
• GST: Disconnected
5V - BATTERY VOLTAGE (11 -
14V)
121
(LG)
128
(B)
EVAP canister vent con-
trol valve
Output
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
122
(P)
128
(B)
Stop lamp switch
Input
[Ignition switch: OFF]
• Brake pedal: Fully released
0V
[Ignition switch: OFF]
• Brake pedal: Slightly depressed
BATTERY VOLTAGE
(11 - 14V)
123
(B)
124
(B)
—
ECM ground
—
—
—
125
(R)
128
(B)
Power supply for ECM
Input
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
126
(BR)
128
(B)
ICC brake switch (mod-
els with ICC system)
ASCD brake switch
(models with ASCD sys-
tem)
Input
[Ignition switch: ON]
• Brake pedal: Slightly depressed
0V
[Ignition switch: ON]
• Brake pedal: Fully released
BATTERY VOLTAGE
(11 - 14V)
127
(B)
128
(B)
—
ECM ground
—
—
—
Terminal No.
(Wire color)
Description
Condition
Value
(Approx.)
+
-–
Signal name
Input/
Output
JMBIA0076GB
JMBIA0077GB
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст