Nissan Note E12. Instruction — part 244
FUEL INJECTOR
EC-315
< DTC/CIRCUIT DIAGNOSIS >
[HR16DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
• 10 A fuse (No. 55)
• Harness for open or short between fuel injector and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
3.
CHECK FUEL INJECTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between fuel injector harness connector and ECM harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
CHECK FUEL INJECTOR
EC-315, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace malfunctioning fuel injector. Refer to
5.
CHECK INTERMITTENT INCIDENT
GI-41, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
.
NO
>> Repair or replace harness or connectors.
Component Inspection
INFOID:0000000009022674
1.
CHECK FUEL INJECTOR
1. Turn ignition switch OFF.
2. Disconnect fuel injector harness connector.
3. Check resistance between fuel injector terminals as follows.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace malfunctioning fuel injector. Refer to
Fuel injector
ECM
Continuity
Cylinder Connector
Front / Rear
Terminal
Connector
Terminal
1
F17
Front
2
F10
31
Existed
F53
Rear
12
2
F18
Front
2
30
F54
Rear
20
3
F19
Front
2
29
F29
Rear
16
4
F20
Front
2
25
F30
Rear
24
Terminals
Resistance
1 and 2
11.1 - 14.5
Ω [at 10 - 60°C (50 - 140°F)]
EC-316
< DTC/CIRCUIT DIAGNOSIS >
[HR16DE]
FUEL PUMP
FUEL PUMP
Component Function Check
INFOID:0000000009022675
1.
CHECK FUEL PUMP FUNCTION
1. Turn ignition switch ON.
2. Pinch fuel feed hose with two fingers.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>>
.
Diagnosis Procedure
INFOID:0000000009022676
1.
CHECK FUEL PUMP POWER SUPPLY CIRCUIT-I
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Turn ignition switch ON.
4. Check the voltage between ECM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK FUEL PUMP POWER SUPPLY CIRCUIT-II
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check the continuity between IPDM E/R harness connector and ECM harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Repair open circuit, short to ground or short to power in harness or connectors.
3.
CHECK FUEL PUMP POWER SUPPLY CIRCUIT-III
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Disconnect “fuel level sensor unit and fuel pump”harness connector.
4. Turn ignition switch ON.
5. Check the voltage between “fuel level sensor unit and fuel pump”harness connector and ground.
Fuel pressure pulsation should be felt on the fuel feed
hose for 1 second after ignition switch is turned ON.
ALBIA1074ZZ
ECM
Voltage
+
−
Connector
Terminal
Connector
Terminal
F10
23
E16
108
Battery voltage
IPDM E/R
ECM
Continuity
Connector
Terminal
Connector
Terminal
F43
43
F10
23
Existed
FUEL PUMP
EC-317
< DTC/CIRCUIT DIAGNOSIS >
[HR16DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 4.
4.
CHECK FUSE
1. Turn ignition switch OFF.
2. Disconnect 15 A fuse (No. 48) from IPDM E/R.
3. Check 15 A fuse.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace 15 A fuse.
5.
CHECK FUEL PUMP POWER SUPPLY CIRCUIT-IV
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check the continuity between IPDM E/R harness connector and “fuel level sensor unit and fuel pump”
harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair open circuit, short to ground or short to power in harness or connectors.
6.
CHECK FUEL PUMP GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check the continuity between “fuel level sensor unit and fuel pump”harness connector and ground.
3. Also check harness for short to power.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair open circuit or short to power in harness or connectors.
7.
CHECK FUEL PUMP
EC-318, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Replace “fuel level sensor unit and fuel pump”. Refer to
.
8.
CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to
GI-41, "Intermittent Incident"
.
Is the inspection result normal?
Fuel level sensor unit
and fuel pump
Ground
Voltage
Connector
Terminal
B44
1
Ground
Battery voltage should for exist 1 second
after ignition switch is turn ON.
IPDM E/R
Fuel level sensor unit and
fuel pump
Continuity
Connector
Terminal
Connector
Terminal
E44
9
B44
1
Existed
Fuel level sensor unit and fuel pump
Ground
Continuity
Connector
Terminal
B44
3
Ground
Existed
EC-318
< DTC/CIRCUIT DIAGNOSIS >
[HR16DE]
FUEL PUMP
YES
>> Replace IPDM E/R. Refer to
.
NO
>> Repair open circuit, short to ground or short to power in harness or connectors.
Component Inspection
INFOID:0000000009022677
1.
CHECK FUEL PUMP
1. Turn ignition switch OFF.
2. Disconnect “fuel level sensor unit (fuel pump)” harness connector.
3. Check resistance between “fuel level sensor unit (fuel pump)” terminals as follows.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace fuel level sensor unit, fuel filter and fuel pump assembly. Refer to
.
Terminals
Resistance [at 25
°C (77°F)]
1 and 3
0.2 - 5.0
Ω
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