Nissan X-Trail 32. Instruction — part 964
P0001 FUEL PUMP
EC-985
< DTC/CIRCUIT DIAGNOSIS >
[R9M]
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P0001 FUEL PUMP
DTC Description
INFOID:0000000010935646
DTC DETECTION LOGIC
POSSIBLE CAUSE
• Harness or connectors (Fuel flow actuator circuit is open or shorted.)
• Fuel flow actuator
FAIL-SAFE
• EGR valve is closed position
• Throttle control motor is opened
• CSF regeneration forbidden
• CCSL deactivation with dashboard message
• ESP deactivated
• Rail pressure limitation
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 1 minute before conducting the next test.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON and wait at least 1 second.
2.
Check DTC.
Is DTC detected?
YES
>> Proceed to
.
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010935647
1.
CHECK FUEL FLOW ACTUATOR POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect fuel flow actuator harness connector.
3.
Turn ignition switch ON.
4.
Check the voltage between fuel flow actuator harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P0001
FUEL FLOW REGULATOR CIRCUIT
(Fuel volume regulator control circuit/open)
• 1.DEF: INLET FLAP BLOCKED
CLOSED
• 2.DEF: INLET FLAP BLOCKED OPEN
• 3.DEF: OPERATION TEMPERATURE
TOO HIGH
• ECM detects a short circuit to ground.
• ECM detects a short circuit to battery.
• ECM detects a open circuit.
• ECM detects an over temperature.
+
-
Voltage
Fuel flow actuator
Connector
Terminal
F167
1
Ground
Battery voltage
EC-986
< DTC/CIRCUIT DIAGNOSIS >
[R9M]
P0001 FUEL PUMP
NO
>> Perform the trouble diagnosis for power supply circuit.
2.
CHECK FUEL FLOW ACTUATOR GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check the continuity between fuel flow actuator 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 3.
NO
>> Repair or replace error-detected parts.
3.
FUEL FLOW ACTUATOR
EC-986, "Component Inspection (Fuel Flow Actuator)"
.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace high pressure fuel pump.
Component Inspection (Fuel Flow Actuator)
INFOID:0000000010935648
1.
CHECK FUEL FLOW ACTUATOR
1.
Disconnect fuel flow actuator harness connector.
2.
Check the resistance between fuel flow actuator terminals as follows.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace high pressure fuel pump. Refer to
EM-341, "Removal and Installation"
.
+
-
Continuity
Fuel flow actuator
ECM
Connector
Terminal
Connector
Terminal
F167
2
F117
43
Existed
Fuel flow actuator
Condition
Resistance
+
-
Terminal
1
2
Temperature
°
C (
°
F)
20 (68)
2.60 - 3.15
Ω
P0002 FUEL PRESSURE
EC-987
< DTC/CIRCUIT DIAGNOSIS >
[R9M]
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P0002 FUEL PRESSURE
DTC Description
INFOID:0000000010935649
DTC DETECTION LOGIC
POSSIBLE CAUSE
• Fuel flow actuator
• Fuel rail pressure sensor
• Fuel temperature sensor
• Low pressure fuel pump
• Fuel leakage
• Fuel filter clogged
• Injectors clogged
• Fuel leakage on fuel rail pressure limiter
• Fuel flow actuator blocked
FAIL-SAFE
• EGR valve is closed position
• Throttle control motor is opened
• Rail pressure limitation
• Freeshift inhibited
• CCSL deactivation
• CSF regeneration forbidden
• ESP deactivation
• AGB in limp home (if present)
• PLV opening (if present)
• Not limitation of calibrated performance
• Prohibit stop/start system
• ZFC correction inhibited (if strategy is present)
• FMO: Cancellation regulator (if strategy is present)
• FMO: Stop of the adaptation (if strategy is present)
• Strong vehicle speed limitation (30km/h)
• Torque limitation
• Overpressure on rail on 5 time
• Inhibition of regulation mode of fuel pressure regulator
DTC CONFIRMATION PROCEDURE
1.
CHECK DTC PRIORITY
If DTC P0002 is displayed with DTC P0001, P0115, P0190, P0200, P0201, P0202, P0203 or P0204, first per-
form the trouble diagnosis for DTC P0001, P0115, P0190, P0200, P0201, P0202, P0203 or P0204.
Is applicable DTC detected?
YES
>> Perform diagnosis of applicable. Refer to
.
NO
>> GO TO 2.
2.
PERFORM DIAGNOSIS PROCEDURE
NOTE:
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P0002
FLOW CONTROL ADAPTIVE
(Fuel volume regulator control circuit range/
performance)
• 1.DEF: PARAMETER AT MAXIMUM
STOP
• 2.DEF: PARAMETER AT MINIMUM
STOP
• 3.DEF: ABOVE THE MAX LEVEL
• 4.DEF: BELOW THE MIN LEVEL
• 5.DEF: OFFSET IMPLAUSIBLE
• Fuel rail pressure is excessively high.
• Fuel rail pressure is excessively low.
• Fuel pressure of low pressure fuel circuit is excessively low.
EC-988
< DTC/CIRCUIT DIAGNOSIS >
[R9M]
P0002 FUEL PRESSURE
DTC P0002 can not duplicate.
>> Proceed to
.
Diagnosis Procedure
INFOID:0000000010935650
1.
CHECK DTC PRIORITY
If DTC P0002 is displayed with DTC P0001, P0115, P0190, P0200, P0201, P0202, P0203 or P0204, first per-
form the trouble diagnosis for DTC P0001, P0115, P0190, P0200, P0201, P0202, P0203 or P0204.
Is applicable DTC detected?
YES
>> Perform diagnosis of applicable. Refer to
.
NO
>> GO TO 2.
2.
CHECK FUEL LEVEL
Check that the fuel level is enough.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Refuel.
3.
CHECK FUEL FILTER
Check the correctness of the fuel filter.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Replace error-detected parts.
4.
CHECK FOR FUEL LEAK
Check for fuel leakage at fuel circuit.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace malfunctioning parts.
5.
CHECK FUEL TEMPERATURE SENSOR
Check fuel temperature sensor. Refer to
EC-989, "Component Inspection (Fuel Tempearature Sensor)"
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace error-detected parts.
6.
CHECK FUEL FLOW ACTUATOR
Check fuel flow actuator. Refer to
EC-989, "Component Inspection (Fuel Flow Actuator)"
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Replace error-detected parts.
7.
CHECK FUEL INJECTOR
Check fuel injector. Refer to
EC-989, "Component Inspection (Fuel Injector)"
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Replace error-detected parts.
8.
CHECK FUEL RAIL PRESSURE SENSOR CIRCUIT
Check fuel rail pressure sensor circuit. Refer to
EC-1014, "Diagnosis Procedure"
.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Replace error-detected parts.
9.
CHECK FUEL PUMP
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