Nissan Altima L32. Instruction — part 600
ECM
EC-1521
< ECU DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
69
(BR/W)
68
(Y/G)
Camshaft position sensor
(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 V
[Engine is running]
• Engine speed is 2,000 rpm
3.0 - 5.0 V
70
(W/R)
64
(B/R)
Camshaft position sensor
(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 V
[Engine is running]
• Engine speed is 2,000 rpm
3.0 - 5.0 V
72
(BR/W)
40
(G)
Sensor power supply
(Refrigerant pressure sensor)
—
[Ignition switch: ON]
5 V
75
(Y)
112
(B)
Intake valve timing control so-
lenoid valve (bank 2)
Output
[Engine is running]
• Warm-up condition
• Idle speed
BATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm
7 - 12 V
76
(R/G)
60
(Y/B)
Sensor power supply
[Crankshaft position sensor
(POS)]
—
[Ignition switch: ON]
5 V
77
(W/L)
112
(B)
Power supply for ECM (Back-
up)
Input
[Ignition switch: OFF]
BATTERY VOLTAGE
(11 - 14 V)
Terminal No.
Description
Condition
Value
(Approx.)
+
-–
Signal name
Input/
Output
JMBIA0045GB
JMBIA0046GB
JMBIA0045GB
JMBIA0046GB
JMBIA0038GB
EC-1522
< ECU DIAGNOSIS >
[VQ35DE]
ECM
78
(R/L)
112
(B)
Intake valve timing control so-
lenoid valve (bank 1)
Output
[Engine is running]
• Warm-up condition
• Idle speed
BATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm
7 - 12 V
81
(W)
84
(B)
Accelerator pedal position
sensor 1
Input
[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully re-
leased
0.65 - 0.87 V
[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully de-
pressed
More than 4.3 V
82
(O)
100
(G)
Accelerator pedal position
sensor 2
Input
[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully re-
leased
0.28 - 0.48 V
[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully de-
pressed
More than 2.0 V
83
(GR)
84
(B)
Sensor power supply
(Accelerator pedal position
sensor 1)
—
[Ignition switch: ON]
5 V
84
(B)
—
Sensor ground
(Accelerator pedal position
sensor 1)
—
—
—
85
(G/Y)
92
(R)
ASCD steering switch
Input
[Ignition switch: ON]
• ASCD steering switch: OFF
4 V
[Ignition switch: ON]
• MAIN switch: Pressed
0 V
[Ignition switch: ON]
• CANCEL switch: Pressed
1 V
[Ignition switch: ON]
• RESUME/ACCELERATE
switch: Pressed
3 V
[Ignition switch: ON]
• SET/COAST switch: Pressed
2 V
86
(SB)
96
(GR)
EVAP control system pres-
sure sensor
Input
[Ignition switch: ON]
1.8 - 4.8 V
87
(BR)
100
(G)
Sensor power supply
(Accelerator pedal position
sensor 2)
—
[Ignition switch: ON]
5 V
88
(O)
—
Data link connector
Input/
Output
—
—
91
(V)
96
(GR)
Sensor power supply
(EVAP control system pres-
sure sensor)
—
[Ignition switch: ON]
5 V
Terminal No.
Description
Condition
Value
(Approx.)
+
-–
Signal name
Input/
Output
JMBIA0038GB
ECM
EC-1523
< ECU DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
92
(R)
—
Sensor ground
(ASCD steering switch)
—
—
—
93
(Y)
112
(B)
Ignition switch
Input
[Ignition switch: OFF]
0 V
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14 V)
94
(V/W)
112
(B)
Engine speed output signal
Output
[Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idle
1 V
[Engine is running]
• Engine speed: 2,000 rpm
1 V
95
(Y)
104
(P)
Fuel tank temperature sensor
Input
[Engine is running]
0 - 4.8 V
Output voltage varies with fuel tank
temperature.
96
(GR)
—
Sensor ground
(EVAP control system pres-
sure sensor)
—
—
—
97
(P)
—
CAN communication line
Input/
Output
—
—
98
(L)
—
CAN communication line
Input/
Output
—
—
100
(G)
—
Sensor ground
(Accelerator pedal position
sensor 2)
—
—
—
102
(R/B)
112
(B)
PNP signal
Input
[Ignition switch: ON]
• Selector lever position: P or N
(CVT), neutral (M/T)
BATTERY VOLTAGE
(11 - 14 V)
[Ignition switch: ON]
• Selector lever position: Ex-
cept above
0 V
104
(P)
—
Sensor ground
(Fuel tank temperature sen-
sor)
—
—
—
105
(V)
112
(B)
Power supply for ECM
Input
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14 V)
106
(SB)
112
(B)
Stop lamp switch
Input
[Ignition switch: OFF]
• Brake pedal: Fully released
0 V
[Ignition switch: OFF]
• Brake pedal: Slightly de-
pressed
BATTERY VOLTAGE
(11 - 14 V)
Terminal No.
Description
Condition
Value
(Approx.)
+
-–
Signal name
Input/
Output
JMBIA0076GB
JMBIA0077GB
EC-1524
< ECU DIAGNOSIS >
[VQ35DE]
ECM
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
*1: This may vary depending on internal resistance of the tester.
*2: Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to
107
(B)
108
(B)
—
ECM ground
—
—
—
109
(W)
112
(B)
EVAP canister vent control
valve
Output
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14 V)
110
(G/W)
112
(B)
ASCD brake switch
Input
[Ignition switch: ON]
• Brake pedal: Slightly de-
pressed
0 V
[Ignition switch: ON]
• Brake pedal: Fully released
BATTERY VOLTAGE
(11 - 14 V)
111
(B)
112
(B)
—
ECM ground
—
—
—
Terminal No.
Description
Condition
Value
(Approx.)
+
-–
Signal name
Input/
Output
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