Nissan Qashqai (2007-2010). Manual — part 425
ECM
EC-1219
< ECU DIAGNOSIS >
[MR20DE (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
17
18
21
22
Ground
V
BR/Y
O
Y
Ignition signal No. 1
Ignition signal No. 2
Ignition signal No. 4
Ignition signal No. 3
Output
[Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idle
0 - 0.3V
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm
0.2 - 0.5V
23
Ground
B/O
Fuel pump relay
Output
[Ignition switch: ON]
• For 1 second after turning
ignition switch ON
[Engine is running]
0 - 1.0V
25
29
30
31
Ground
R
U
GR
L
Fuel injector No. 4
Fuel injector No. 3
Fuel injector No. 2
Fuel injector No. 1
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)
[Engine is running]
• More than 1 second after
turning ignition switch ON
BATTERY VOLTAGE
(11 - 14V)
32
Ground
R/B
ECM relay
(Self shut-off)
Output
[Engine is running]
[Ignition switch: OFF]
• A few seconds after turning
ignition switch OFF
0 - 1.0V
[Ignition switch: OFF]
• More than a few seconds af-
ter turning ignition switch
OFF
BATTERY VOLTAGE
(11 - 14V)
Terminal No.
Wire
color
Description
Condition
Value
(Approx.)
+
-–
Signal name
Input/
Output
JMBIA0329GB
JMBIA0330GB
JMBIA0331GB
JMBIA0332GB
EC-1220
< ECU DIAGNOSIS >
[MR20DE (WITHOUT EURO-OBD)]
ECM
33
Ground
Y
Throttle position sensor 1
Input
[Ignition switch: ON]
• Engine stopped
• Shift lever: D (CVT), 1st (M/
T)
• Accelerator pedal: Fully re-
leased
More than 0.36V
[Ignition switch: ON]
• Engine stopped
• Shift lever: D (CVT), 1st (M/
T)
• Accelerator pedal: Fully de-
pressed
Less than 4.75V
34
Ground
R
Throttle position sensor 2
Input
[Ignition switch: ON]
• Engine stopped
• Shift lever: D (CVT), 1st (M/
T)
• Accelerator pedal: Fully re-
leased
Less than 4.75V
[Ignition switch: ON]
• Engine stopped
• Shift lever: D (CVT), 1st (M/
T)
• Accelerator pedal: Fully de-
pressed
More than 0.36V
36
Ground
B
Sensor ground
(Throttle position sensor)
—
[Engine is running]
• Warm-up condition
• Idle speed
0V
37
Ground
W
Knock sensor
Input
[Engine is running]
• Idle speed
2.5V
38
Ground
P
Engine coolant temperature
sensor
Input
[Engine is running]
0 - 4.8V
Output voltage varies with engine
coolant temperature.
40
Ground
B
Sensor ground
(Knock sensor)
—
[Engine is running]
• Warm-up condition
• Idle speed
0V
41
Ground
G
Refrigerant pressure sensor
Input
[Engine is running]
• Warm-up condition
• Both A/C switch and blower
fan motor switch: ON (Com-
pressor operates)
1.0 - 4.0V
44
Ground
O
Sensor ground
(Engine coolant temperature
sensor)
—
[Engine is running]
• Warm-up condition
• Idle speed
0V
45
Ground
BR
Mass air flow sensor
Input
[Engine is running]
• Warm-up condition
• Idle speed
0.9 - 1.2V
[Engine is running]
• Warm-up condition
• Engine speed: 2,500 rpm
1.5 - 1.8V
46
Ground
Y
Intake air temperature sen-
sor
Input
[Engine is running]
0 - 4.8V
Output voltage varies with intake
air temperature.
48
Ground
R/B
Sensor ground
(Refrigerant pressure sen-
sor)
—
[Engine is running]
• Warm-up condition
• Idle speed
0V
Terminal No.
Wire
color
Description
Condition
Value
(Approx.)
+
-–
Signal name
Input/
Output
ECM
EC-1221
< ECU DIAGNOSIS >
[MR20DE (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
49
Ground
Y
Heated oxygen sensor 1
Input
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm
0 - 1.0V
50
Ground
Y
Heated oxygen sensor 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
52
Ground
LG
Sensor ground
(Mass air flow sensor)
—
[Engine is running]
• Warm-up condition
• Idle speed
0V
55
Ground
O
Sensor power supply
(Intake air temperature sen-
sor)
—
[Engine is running]
• Warm-up condition
• Idle speed
0V
56
Ground
B
Sensor ground
(Heated oxygen sensor 1)
—
[Engine is running]
• Warm-up condition
• Idle speed
0 - 4.8V
Output voltage varies with engine
coolant temperature.
59
Ground
SB
Sensor ground
(Heated oxygen sensor 2)
—
[Engine is running]
• Warm-up condition
• Idle speed
0V
61
Ground
Y
Crankshaft position sensor
(POS)
Input
[Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idle
4.0V
[Engine is running]
• Engine speed: 2,000 rpm
4.0V
62
Ground
B
Sensor ground
[Crankshaft position sensor
(POS)]
—
[Engine is running]
• Warm-up condition
• Idle speed
0V
63
Ground
B
Sensor ground
[Camshaft position sensor
(PHASE)]
—
[Engine is running]
• Warm-up condition
• Idle speed
0V
Terminal No.
Wire
color
Description
Condition
Value
(Approx.)
+
-–
Signal name
Input/
Output
JMBIA0333GB
JMBIA0334GB
EC-1222
< ECU DIAGNOSIS >
[MR20DE (WITHOUT EURO-OBD)]
ECM
65
Ground
R
Camshaft position sensor
(PHASE)
Input
[Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes de-
pending on rpm at idle
1.0 - 2.0
[Engine is running]
• Engine speed is 2,000 rpm
1.0 - 2.0
69
Ground
W/B
PNP switch
Input
[Ignition switch: ON]
• Shift lever: P or N (CVT),
Neutral (M/T)
BATTERY VOLTAGE
(11 - 14V)
[Ignition switch: ON]
• Shift lever: Except above
0V
72
Ground
L
Sensor power supply
(Throttle position sensor)
—
[Ignition switch: ON]
5V
73
Ground
Y/R
Intake valve timing control
solenoid valve
Output
[Engine is running]
• Warm-up condition
• Idle speed
0V
[Engine is running]
• Warm-up condition
• Engine speed: 2,000rpm
7 - 10V
74
Ground
L
Sensor power supply
(Refrigerant pressure sen-
sor)
Input
[Ignition switch: ON]
5V
75
Ground
G
Sensor power supply
[Crankshaft position sensor
(POS)]
—
[Ignition switch: ON]
5V
78
Ground
LG
Sensor power supply
[Camshaft position sensor
(PHASE)]
—
[Ignition switch: ON]
5V
83
Ground
P
CAN communication line
Input/
Output
—
—
84
Ground
L
CAN communication line
Input/
Output
—
—
88
Ground
O
Data link connector
Input/
Output
[Ignition switch: ON]
• CONSULT-III : Disconnect-
ed
10.5V
93
Ground
W/L
Ignition switch
Input
[Ignition switch: OFF]
0V
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
Terminal No.
Wire
color
Description
Condition
Value
(Approx.)
+
-–
Signal name
Input/
Output
JMBIA0335GB
JMBIA0336GB
JMBIA0337GB
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