Nissan Juke F15. Manual — part 434
HIGH PRESSURE FUEL PUMP
EC-549
< DTC/CIRCUIT DIAGNOSIS >
[MR FOR NISMO RS MODELS]
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EC
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HIGH PRESSURE FUEL PUMP
Component Function Check
INFOID:0000000012198094
1.
CHECK HIGH PRESSURE FUEL PUMP FUNCTION
With CONSULT
1. Start engine.
2. Check “FUEL PRES SEN V” in “DATA MONITOR” mode of “ENGINE” using CONSULT.
Without CONSULT
1. Start engine.
2. Check the voltage between ECM harness connector terminals as per the following conditions.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Proceed to
.
Diagnosis Procedure
INFOID:0000000012198095
1.
CHECK HIGH PRESSURE FUEL PUMP POWER SUPPLY
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector and ground.
Is inspection result normal?
Monitor Item
Condition
Values/Status
FUEL PRES SEN V
Engine speed: Idle
1,140 – 1,460 mV
Engine speed: Revving engine
from idle to 4,000 rpm quickly
1,300 – 2,900 mV
ECM
Condition
Voltage
Connector
+
−
Terminal
F26
55
50
[Engine is running]
• Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle
BATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm
BATTERY VOLTAGE
(11 - 14 V)
JPBIA4722ZZ
JPBIA4723ZZ
+
−
Voltage
ECM
Connector
Terminal
F26
54
Ground
Battery voltage
EC-550
< DTC/CIRCUIT DIAGNOSIS >
[MR FOR NISMO RS MODELS]
HIGH PRESSURE FUEL PUMP
YES
>> GO TO 8.
NO
>> GO TO 2.
2.
CHECK HIGH PRESSURE FUEL PUMP POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Disconnect fuel injector relay harness connector.
4. Check the continuity between ECM harness connector and high pressure fuel pump relay harness con-
nector.
5. Also check harness for short to ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace error-detected parts
3.
CHECK HIGH PRESSURE FUEL PUMP RELAY POWER SUPPLY (CONTACT SIDE)
Check the voltage between high pressure fuel pump relay harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Perform the trouble diagnosis for power supply circuit.
4.
CHECK HIGH PRESSURE FUEL PUMP RELAY POWER SUPPLY (EXCITATION COIL SIDE)
1. Reconnect all harness connectors disconnected.
2. Turn ignition switch ON.
3. Check the voltage between high pressure fuel pump relay harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 5
5.
CHECK HIGH PRESSURE FUEL PUMP RELAY POWER SUPPLY CIRCUIT (EXCITATION COIL SIDE)
1. Turn ignition switch OFF.
2. Disconnect high pressure fuel pump relay harness connector.
3. Disconnect IPDM E/R harness connector.
4. check the continuity between ipdm e/r harness connector and high pressure fuel pump harness connec-
tor.
+
−
Continuity
ECM
High pressure fuel pump re-
lay
Connector
Terminal
Connector
Terminal
F26
54
E58
3
Existed
+
−
Voltage
High pressure fuel pump relay
Connector
Terminal
E58
5
Ground
Battery voltage
+
−
Voltage
High pressure fuel pump relay
Connector
Terminal
E58
2
Ground
Battery voltage
HIGH PRESSURE FUEL PUMP
EC-551
< DTC/CIRCUIT DIAGNOSIS >
[MR FOR NISMO RS MODELS]
C
D
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F
G
H
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J
K
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M
A
EC
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O
5. Also check harness for short to ground.
Is the inspection result normal?
YES
>> Perform the trouble diagnosis for power supply circuit.
NO
>> Repair or replace error-detected parts.
6.
CHECK HIGH PRESSURE FUEL PUMP RELAY GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect high pressure fuel pump relay harness connector.
3. Check the continuity between high pressure fuel pump relay harness connector and ground.
4. Also check harness for short to power.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair or replace error-detected parts.
7.
CHECK HIGH PRESSURE FUEL PUMP RELAY
Check the high pressure fuel pump relay. Refer to
EC-553, "Component Inspection (High Pressure Fuel Pump
.
Is inspection result normal?
YES
>> GO TO 8.
NO
>> Replace high pressure fuel pump relay. Refer to
.
8.
CHECK HIGH PRESSURE FUEL PUMP CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector and high pressure fuel pump harness connector.
3. Check the continuity between ECM harness connector and high pressure fuel pump harness connector.
4. Also check harness for short to ground and to power.
Is inspection result normal?
YES
>> GO TO 9.
NO
>> Repair or replace error-detected parts.
9.
CHECK HIGH PRESSURE FUEL PUMP
Check the high pressure fuel pump. Refer to
EC-552, "Component Inspection (High Pressure Fuel Pump)"
.
Is inspection result normal?
YES
>> GO TO 10.
NO
>> Replace high pressure fuel pump. Refer to
.
+
−
Continuity
IPDM E/R
High pressure fuel pump re-
lay
Connector
Terminal
Connector
Terminal
E14
35
E58
2
Existed
+
−
Continuity
High pressure fuel pump relay
Connector
Terminal
E58
1
Ground
Existed
+
−
Continuity
ECM
High pressure fuel pump
Connector
Terminal
Connector
Terminal
F26
55
F53
1
Existed
56
2
EC-552
< DTC/CIRCUIT DIAGNOSIS >
[MR FOR NISMO RS MODELS]
HIGH PRESSURE FUEL PUMP
10.
CHECK HIGH PRESSURE FUEL PUMP INSTALLATION CONDITION
1. Turn ignition switch OFF.
2. Check that the high pressure fuel pump is installed with no backlash and looseness.
Is the inspection result normal?
YES
>> GO TO 11.
NO
>> Repair or replace error-detected parts.
11.
CHECK CAMSHAFT
1. Remove camshaft. Refer to
2. Check camshaft. Refer to
Is inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-45, "Intermittent Incident"
.
NO
>> Replace camshaft. Refer to
.
Component Inspection (High Pressure Fuel Pump)
INFOID:0000000012198096
1.
CHECK HIGH PRESSURE FUEL PUMP-I
1. Turn ignition switch OFF.
2. Disconnect high pressure fuel pump harness connector.
3. Check the resistance between high pressure fuel pump terminals as follows.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace high pressure fuel pump. Refer to
.
2.
CHECK HIGH PRESSURE FUEL PUMP-II
With CONSULT
1. Reconnect high pressure fuel pump harness connector.
2. Start the engine.
3. Check “FUEL PRES SEN” in “DATA MONITOR” of “ENGINE” using CONSULT.
Without CONSULT
1. Start the engine.
2. Check fuel rail pressure sensor signal voltage.
Is the inspection result normal?
YES
>> INSPECTION END
High pressure fuel pump
Condition
Resistance
+
−
Terminal
1
2
Temperature
°C (°F)
20 – 30 (68 - 86)
0.46 - 0.51
Ω
Data monitor item
Condition
Voltage
(Approx.)
FUEL PRES SEN V
Engine speed: idle
1,140 – 1,460 mV
Engine speed: Revving engine from idle to 4,000 rpm quickly
1,300 – 2,900 mV
+
−
Condition
Value
(Approx.)
Fuel rail pressure sensor
Connector
Terminal
F5
2
Ground
Engine speed: idle
1.14 – 1.46 V
Engine speed: Revving engine
from idle to 4,000 rpm quickly
1.3 – 2.9 V
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