Nissan Sentra. Instruction — part 347
EC-84
< ECU DIAGNOSIS INFORMATION >
[MRA8DE]
ECM
30
(L)
—
Sensor ground
[Camshaft position sen-
sor (PHASE)]
—
—
—
31
(BR)
30
(L)
Camshaft position sensor
(PHASE)
Input
[Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes depending
on rpm at idle
1.0 - 2.0
[Engine is running]
• Engine speed is 2,000 rpm
1.0 - 2.0
32
(GR)
—
Sensor power supply
[Camshaft position sen-
sor (PHASE)]
—
[Ignition switch: ON]
5.0 V
33
(GR)
34
(W)
Intake air temperature
sensor
Input
[Engine is running]
0 - 4.8 V
Output voltage varies with intake
air temperature.
34
(W)
—
Sensor ground
(Mass air flow sensor, in-
take air temperature sen-
sor)
—
—
—
35
(G)
34
(W)
Mass air flow sensor
Input
[Ignition switch: ON]
• Engine stopped
1.27 V
[Engine is running]
• Warm-up condition
• Idle speed
1.3 – 1.6 V
[Engine is running]
• Warm-up condition
• Engine is revving from idle to about
4,000 rpm
1.3 – 1.6
→ 2.6 V (Check for lin-
ear voltage rise in response to
engine being increased to about
4,000 rpm.)
36
(R)
—
Sensor power supply
(Mass air flow sensor, in-
take air temperature sen-
sor)
—
[Ignition switch: ON]
5.0 V
37
(B)
—
Shield
—
—
—
38
(W)
—
Sensor ground
(Engine oil pressure sen-
sor)
—
—
—
Terminal No.
(Wire color)
Description
Condition
Value
(Approx.)
+
−
Signal name
Input/
Output
JSBIA2670ZZ
JSBIA2671ZZ
ECM
EC-85
< ECU DIAGNOSIS INFORMATION >
[MRA8DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
39
(G)
38
(W)
Engine oil pressure sen-
sor
Input
[Engine is running]
• Warm-up condition
• Idle speed
1.3 V
[Engine is running]
• Warm-up condition
• Engine speed is 2,000 rpm
2.7 V
40
(R)
38
(W)
Sensor power supply
(Engine oil pressure sen-
sor)
—
[Ignition switch: ON]
5.0 V
41
(Y)
128
(B/Y)
A/F sensor 1
Input
Engine running]
• Warm-up condition
• Engine speed: 2,000 rpm
2.2 V
(Output voltage varies with air-
fuel ratio)
42
(W)
—
Sensor ground
[Exhaust valve timing
control position sensor]
—
—
—
43
(P)
42
(W)
Exhaust valve timing con-
trol position sensor
Input
[Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes depending
on rpm at idle
1.0
[Engine is running]
• Engine speed is 2,500 rpm
1.0
44
(R)
—
Sensor power supply
[Exhaust valve timing
control position sensor]
—
[Ignition switch: ON]
5 V
45
(BR)
128
(B/Y)
A/F sensor 1
Input
[Engine is running]
• Engine speed is 2,000 rpm
2.2 V
Output voltage varies with air fuel
ratio.
49
(G)
128
(B/Y)
Intake manifold runner
control valve motor
(Close)
Output
[Ignition switch ON]
• Engine coolant temperature: More
than 60
°C (140°F)
• Accelerator pedal: Depressed
→ ful-
ly released
Battery voltage appears for about
1 second.
Terminal No.
(Wire color)
Description
Condition
Value
(Approx.)
+
−
Signal name
Input/
Output
JPBIA3359ZZ
JPBIA3360ZZ
JSBIA2672ZZ
JSBIA2673ZZ
EC-86
< ECU DIAGNOSIS INFORMATION >
[MRA8DE]
ECM
50
(R)
128
(B/Y)
Intake manifold runner
control valve motor power
supply
Input
[Ignition switch: ON]
Battery voltage
(11 - 14 V)
51
(R)
128
(B/Y)
Intake manifold runner
control valve motor
(Open)
Output
[Ignition switch ON]
• Engine coolant temperature: More
than 60
°C (140°F)
• Accelerator pedal: Fully released
→
depressed
Battery voltage appears for about
1 second.
52
(B)
—
ECM ground
—
—
—
53
(G)
128
(B/Y)
A/F sensor 1 heater
Input
[Engine is running]
• Warm-up condition
• Idle speed
(More than 260 seconds after start-
ing engine)
10 V
54
(G)
128
(B/Y)
Heated oxygen sensor 2
heater
Output
[Engine is running]
• Engine speed: Below 3,600 rpm af-
ter 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
8 V
[Ignition switch: ON]
• Engine stopped
[Engine is running]
• Engine speed: Above 3,600 rpm
Battery voltage
(11 - 14 V)
61
(BG)
62
(BR)
Battery temperature sen-
sor
Input
[Engine is running]
• Battery temperature: 25
°C (°F)
• Idle speed
3.3 V
62
(BR)
—
Sensor ground
(Battery current sensor,
battery temperature sen-
sor)
—
—
—
63
(G)
62
(BR)
Battery current sensor
Input
[Engine is running]
• Battery: Fully charged
*
• Idle speed
2.6 - 3.5 V
64
(Y)
—
Sensor power supply
(Battery current sensor)
—
[Ignition switch: ON]
5.0 V
70
(W)
—
Sensor ground
[Crankshaft position sen-
sor (POS)]
—
—
—
Terminal No.
(Wire color)
Description
Condition
Value
(Approx.)
+
−
Signal name
Input/
Output
JPBIA4732ZZ
JMBIA0325GB
ECM
EC-87
< ECU DIAGNOSIS INFORMATION >
[MRA8DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
71
(R)
70
(W)
Crankshaft position sen-
sor (POS)
Input
[Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes depending
on rpm at idle
1.0 V
[Engine is running]
• Engine speed: 2,000 rpm
1.0 V
72
(G)
—
Sensor power supply
[Crankshaft position sen-
sor (POS)]
—
[Ignition switch: ON]
5.0 V
73
(GR)
—
Shield
—
—
—
77
(W)
78
(R)
Throttle position sensor 2
Input
[Ignition switch: ON]
• Engine stopped
• Selector lever: D (CVT), 1st (M/T)
• Accelerator pedal: Fully released
Less than 4.75 V
[Ignition switch: ON]
• Engine stopped
• Selector lever: D (CVT), 1st (M/T)
• Accelerator pedal: Fully depressed
More than 0.36 V
78
(R)
—
Sensor ground
(Throttle position sensor)
—
—
—
79
(G)
78
(R)
Throttle position sensor 1
Input
[Ignition switch: ON]
• Engine stopped
• Selector lever: D (CVT), 1st (M/T)
• Accelerator pedal: Fully released
More than 0.36 V
[Ignition switch: ON]
• Engine stopped
• Selector lever: D (CVT), 1st (M/T)
• Accelerator pedal: Fully depressed
Less than 4.75 V
80
(B)
—
Sensor power supply
(Throttle position sensor)
—
[Ignition switch: ON]
5.0 V
81
(Y)
128
(B/Y)
Power supply for ECM
(Backup)
Input
[Ignition switch: OFF]
Battery voltage
(11 - 14 V)
83
(LG)
92
(V)
Intake manifold runner
control valve position sen-
sor
Input
[Ignition switch ON]
• Engine coolant temperature: Be-
tween 0
°C (32°F) and 45°C (113°F)
• Accelerator pedal: Fully released
Less than 2.4 V
[Ignition switch ON]
• Engine coolant temperature: Be-
tween 0
°C (32°F) and 45°C (113°F)
• Accelerator pedal: Slightly de-
pressed
More than 3.5 V
Terminal No.
(Wire color)
Description
Condition
Value
(Approx.)
+
−
Signal name
Input/
Output
JPBIA4728ZZ
JPBIA4729ZZ
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