Page 1687 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual DTC P1275 FUEL PUMP
EC-1283
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Diagnostic ProcedureEBS011EI
1. CHECK ECM OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconne NISSAN X-TRAIL 2005 Service Repair Manual DTC P1275 FUEL PUMP
EC-1283
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Diagnostic ProcedureEBS011EI
1. CHECK ECM OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconne](/manual-img/5/57403/w960_57403-1686.png)
DTC P1275 FUEL PUMP
EC-1283
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Diagnostic ProcedureEBS011EI
1. CHECK ECM OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector and fuel pump harness
connectors.
3. Check harness continuity between ECM terminal 10 and fuel
pump terminal 2.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 2.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
2. CHECK FUEL PUMP GROUND CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 29 and fuel pump terminal 1.
Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
3. CHECK FUEL RAIL PRESSURE SENSOR
Refer to E C - 111 5 , "
Component Inspection" .
OK or NG
OK >> GO TO 4.
NG >> Replace fuel rail.
4. CHECK FUEL PUMP
Refer to EC-1284, "
Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5. REPLACE FUEL PUMP
1. Replace fuel pump.
2. Perform Fuel Pump Learning Valve Clearing. Refer to EC-994, "
Fuel Pump Learning Value Clearing" .
>>INSPECTION END
6. CHECK INTERMITTENT INCIDENT
Refer to EC-1045, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END Continuity should exist.
PBIB1943E
Continuity should exist.
Page 1688 of 4555
EC-1284
[YD (WITH EURO-OBD)]
DTC P1275 FUEL PUMP
Component InspectionEBS011EJ
FUEL PUMP
1. Check continuity between fuel pump terminals 1 and 2.
2. If NG, replace fuel pump.
Removal and InstallationEBS011EK
FUEL PUMP
Refer to EM-171, "FUEL PUMP" . Continuity should exist.
SEF807Z
Page 1693 of 4555
DTC P2135 APP SENSOR
EC-1289
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Diagnostic ProcedureEBS011ER
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground screws on the body. Refer to EC-1055, "
Ground Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
PBIB2020E
Page 1694 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual EC-1290
[YD (WITH EURO-OBD)]
DTC P2135 APP SENSOR
2. CHECK APP SENSOR POWER SUPPLY CIRCUIT
1. Disconnect accelerator pedal position (APP) sensor harness
connector.
2. Turn ignition switch ON.
3. Che NISSAN X-TRAIL 2005 Service Repair Manual EC-1290
[YD (WITH EURO-OBD)]
DTC P2135 APP SENSOR
2. CHECK APP SENSOR POWER SUPPLY CIRCUIT
1. Disconnect accelerator pedal position (APP) sensor harness
connector.
2. Turn ignition switch ON.
3. Che](/manual-img/5/57403/w960_57403-1693.png)
EC-1290
[YD (WITH EURO-OBD)]
DTC P2135 APP SENSOR
2. CHECK APP SENSOR POWER SUPPLY CIRCUIT
1. Disconnect accelerator pedal position (APP) sensor harness
connector.
2. Turn ignition switch ON.
3. Check voltage between APP sensor terminals 4, 6 and ground
with CONSULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
3. CHECK APP SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between APP sensor terminals 3 and ECM terminal 84, APP sensor terminal 1
and ECM terminal 92.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK APP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 83 and APP sensor terminal 5, ECM terminal 91 and
APP sensor terminal 2.
Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK APP SENSOR
Refer to EC-1291, "
Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Replace accelerator pedal assembly.
PBIB1893E
Voltage: Approximately 5.3V
PBIB0560E
Continuity should exist.
Continuity should exist.
Page 1695 of 4555
DTC P2135 APP SENSOR
EC-1291
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6. CHECK INTERMITTENT INCIDENT
Refer to EC-1045, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionEBS011ES
ACCELERATOR PEDAL POSITION SENSOR
1. Reconnect all harness connectors disconnected.
2. Turn ignition switch ON.
3. Check voltage between ECM terminals 83 (APP sensor 1 sig-
nal), 91 (APP sensor 2 signal) and ground under the following
conditions.
4. If NG, replace accelerator pedal assembly.
Removal and InstallationEBS011ET
ACCELERATOR PEDAL
Refer to ACC-2, "ACCELERATOR CONTROL SYSTEM" .
Terminal Accelerator pedal Voltage
83
(Accelerator pedal position
sensor 1)Fully released 0.5 - 1.0V
Fully depressed 4.2 - 5.2V
91
(Accelerator pedal position
sensor 2)Fully released 0.4 - 0.7V
Fully depressed 2.2 - 2.7V
MBIB0615E
Page 1700 of 4555
EC-1296
[YD (WITH EURO-OBD)]
DTC P2146, P2149 FUEL INJECTOR POWER SUPPLY
Diagnostic ProcedureEBS011F0
1. CHECK FUEL INJECOR POWER CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Disconnect fuel injector harness connector.
4. Check harness continuity between the following terminals corre-
sponding to the malfunctioning cylinder.
Refer to Wiring Diagram.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 2.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
2. CHECK INTERMITTENT INCIDENT
Refer to EC-1045, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Terminal
Cylinder
ECM Fuel injector
43No.1
53No.2
53No.3
43No.4
Continuity should exist.
PBIB1896E
Page 1704 of 4555
EC-1300
[YD (WITH EURO-OBD)]
DTC P2147, P2148 FUEL INJECTOR CIRCUIT
Diagnostic ProcedureEBS011F9
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground screws on the body. Refer to EC-1055, "
Ground Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
PBIB2020E
Page 1705 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual DTC P2147, P2148 FUEL INJECTOR CIRCUIT
EC-1301
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2. CHECK ECM OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
1. Disconnect fuel injector harness connector.
2. D NISSAN X-TRAIL 2005 Service Repair Manual DTC P2147, P2148 FUEL INJECTOR CIRCUIT
EC-1301
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2. CHECK ECM OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
1. Disconnect fuel injector harness connector.
2. D](/manual-img/5/57403/w960_57403-1704.png)
DTC P2147, P2148 FUEL INJECTOR CIRCUIT
EC-1301
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2. CHECK ECM OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
1. Disconnect fuel injector harness connector.
2. Disconnect ECM harness connector.
3. Check harness continuity between the following terminals corre-
sponding to the malfunctioning cylinder.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace.
3. CHECK FUEL INJECTOR
Refer to EC-1301, "
Component Inspection" .
OK or NG
OK >> GO TO 4.
NG >> Replace fuel injector.
4. CHECK INTERMITTENT INCIDENT
Refer to EC-1045, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionEBS011FA
FUEL INJECTOR
1. Disconnect fuel injector.
CylinderTerminal
Continuity
Fuel injector ECM
No.1342, 43 Should not exist
4 Should exist
442,43 Should exist
4 Should not exist
No.2321, 22 Should not exist
5 Should exist
421, 22 Should exist
5 Should not exist
No.3323, 24 Should not exist
5 Should exist
423, 24 Should exist
5 Should not exist
No.4340, 41 Should not exist
4 Should exist
440, 41 Should exist
4 Should not exist
PBIB1896E