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POWER SUPPLY AND GROUND CIRCUIT
EC-1423
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Component InspectionEBS011XU
ECM RELAY
1. Apply 12V direct current between ECM relay terminals 1 and 2.
2. Check continuity between relay terminals 3 and 5, 6 and 7.
3. If NG, replace ECM relay.
Condition Continuity
12V direct current supply between ter-
minals 1 and 2Ye s
OFF No
PBIB0077E
Page 1828 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual EC-1424
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POWER SUPPLY AND GROUND CIRCUIT
Ground InspectionEBS011XV
Ground connections are very important to the proper operation of electrical and electronic circuits. Ground
NISSAN X-TRAIL 2005 Service Repair Manual EC-1424
[YD (WITHOUT EURO-OBD)]
POWER SUPPLY AND GROUND CIRCUIT
Ground InspectionEBS011XV
Ground connections are very important to the proper operation of electrical and electronic circuits. Ground](/manual-img/5/57403/w960_57403-1827.png)
EC-1424
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POWER SUPPLY AND GROUND CIRCUIT
Ground InspectionEBS011XV
Ground connections are very important to the proper operation of electrical and electronic circuits. Ground
connections are often exposed to moisture, dirt and other corrosive elements. The corrosion (rust) can
become an unwanted resistance. This unwanted resistance can change the way a circuit works.
Electronically controlled circuits are very sensitive to proper grounding. A loose or corroded ground can drasti-
cally affect an electronically controlled circuit. A poor or corroded ground can easily affect the circuit. Even
when the ground connection looks clean, there can be a thin film of rust on the surface.
When inspecting a ground connection follow these rules:
Remove the ground bolt or screw.
Inspect all mating surfaces for tarnish, dirt, rust, etc.
Clean as required to assure good contact.
Reinstall bolt or screw securely.
Inspect for “add-on” accessories which may be interfering with the ground circuit.
If several wires are crimped into one ground eyelet terminal, check for proper crimps. Make sure all of the
wires are clean, securely fastened and providing a good ground path. If multiple wires are cased in one
eyelet make sure no ground wires have excess wire insulation.
For detailed ground distribution information, refer to “Ground Distribution” in PG section.
PBIB1870E
Page 1832 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual EC-1428
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DTC P0016 CKP - CMP CORRELATION
DTC P0016 CKP - CMP CORRELATIONPFP:10328
On Board Diagnosis LogicEBS011Y1
The MI will not light up for this self-diagnosis.
NOTE:
If NISSAN X-TRAIL 2005 Service Repair Manual EC-1428
[YD (WITHOUT EURO-OBD)]
DTC P0016 CKP - CMP CORRELATION
DTC P0016 CKP - CMP CORRELATIONPFP:10328
On Board Diagnosis LogicEBS011Y1
The MI will not light up for this self-diagnosis.
NOTE:
If](/manual-img/5/57403/w960_57403-1831.png)
EC-1428
[YD (WITHOUT EURO-OBD)]
DTC P0016 CKP - CMP CORRELATION
DTC P0016 CKP - CMP CORRELATIONPFP:10328
On Board Diagnosis LogicEBS011Y1
The MI will not light up for this self-diagnosis.
NOTE:
If DTC P0016 is displayed with DTC P0652 or P0653, first perform trouble diagnosis for DTC P0652
or P0653. Refer to EC-1579, "
DTC P0652, P0653 SENSOR POWER SUPPLY" .
DTC Confirmation ProcedureEBS011Y2
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for at least 5 seconds.
4. If DTC is detected, go to EC-1428, "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Start engine and let it idle for at least 5 seconds.
2. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
3. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
4. If DTC is detected, go to EC-1428, "
Diagnostic Procedure" .
Diagnostic ProcedureEBS011Y3
1. CHECK CAMSHAFT POSITION SENSOR
Refer to EC-1517, "
Component Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Replace camshaft position sensor.
2. CHECK SPROCKET
Visually check for chipping signal plate gear tooth.
OK or NG
OK >> GO TO 3.
NG >> Remove debris and clean the signal plate or replace sprocket.
DTC No.Trouble diagnosis
nameDTC detecting condition Possible cause
P0016
0016Crankshaft position -
camshaft position cor-
relationThe correlation between crankshaft position sen-
sor signal and camshaft position sensor signal is
out of the normal range.
Camshaft position sensor
Crankshaft position sensor
Timing chain
Signal plate
SEF817Y
Page 1833 of 4555
DTC P0016 CKP - CMP CORRELATION
EC-1429
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3. CHECK CRANKSHAFT POSITION SENSOR
Refer to EC-1530, "
Component Inspection" .
OK or NG
OK >> GO TO 4.
NG >> Replace crankshaft position sensor.
4. CHECK GEAR TOOTH
Visually check for chipping signal plate gear tooth.
OK or NG
OK >> GO TO 5.
NG >> Replace the signal plate.
5. CHECK TIMING CHAIN
Refer to EM-193, "
SECONDARY TIMING CHAIN" , EM-198, "PRIMARY TIMING CHAIN" and EM-163, "VA C -
UUM PUMP" .
OK or NG
OK >> GO TO 6.
NG >> Replace timing chain.
6. CHECK INTERMITTENT INCIDENT
Refer to EC-1414, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Page 1834 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual EC-1430
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DTC P0088 FUEL SYSTEM
DTC P0088 FUEL SYSTEMPFP:17520
On Board Diagnosis LogicEBS011Y4
NOTE:
If DTC P0088 is displayed with DTC P0652 or P0653, first perform trouble NISSAN X-TRAIL 2005 Service Repair Manual EC-1430
[YD (WITHOUT EURO-OBD)]
DTC P0088 FUEL SYSTEM
DTC P0088 FUEL SYSTEMPFP:17520
On Board Diagnosis LogicEBS011Y4
NOTE:
If DTC P0088 is displayed with DTC P0652 or P0653, first perform trouble](/manual-img/5/57403/w960_57403-1833.png)
EC-1430
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DTC P0088 FUEL SYSTEM
DTC P0088 FUEL SYSTEMPFP:17520
On Board Diagnosis LogicEBS011Y4
NOTE:
If DTC P0088 is displayed with DTC P0652 or P0653, first perform trouble diagnosis for DTC P0652
or P0653. Refer to EC-1579, "
DTC P0652, P0653 SENSOR POWER SUPPLY" .
DTC Confirmation ProcedureEBS011Y5
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Keep engine speed more than 2,000 rpm for at least 20 sec-
onds.
4. If DTC is detected, go to EC-1430, "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Keep engine speed more than 2,000 rpm for at least 20 seconds.
3. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
4. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
5. If DTC is detected, go to EC-1430, "
Diagnostic Procedure" .
Diagnostic ProcedureEBS011Y6
1. CHECK FUEL RAIL PRESSURE SENSOR
Refer to EC-1471, "
Component Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Replace fuel rail.
2. CHECK FUEL INJECTOR
Refer to EC-1479, "
Component Inspection" .
OK or NG
OK >> GO TO 3.
NG >> Replace fuel injector.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0088
0088Fuel rail pressure too highFuel pressure is too much higher than the speci-
fied value.
Fuel pump
Fuel injector
Fuel rail pressure sensor
SEF817Y
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DTC P0088 FUEL SYSTEM
EC-1431
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3. CHECK FUEL PUMP
Refer to EC-1574, "
Component Inspection" .
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. REPLACE FUEL PUMP
1. Replace fuel pump.
2. Perform Fuel Pump Learning Value Clearing. Refer to EC-1370, "
Fuel Pump Learning Value Clearing" .
>>INSPECTION END
5. CHECK INTERMITTENT INCIDENT
Refer to EC-1414, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Removal and InstallationEBS011Y7
FUEL INJECTOR
Refer to EM-167, "INJECTION TUBE AND FUEL INJECTOR" .
FUEL PUMP
Refer to EM-171, "FUEL PUMP" .
Page 1836 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual EC-1432
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DTC P0089 FUEL PUMP
DTC P0089 FUEL PUMPPFP:16700
On Board Diagnosis LogicEBS011Y8
The MI will not light up for this self-diagnosis.
NOTE:
If DTC P0089 is displayed w NISSAN X-TRAIL 2005 Service Repair Manual EC-1432
[YD (WITHOUT EURO-OBD)]
DTC P0089 FUEL PUMP
DTC P0089 FUEL PUMPPFP:16700
On Board Diagnosis LogicEBS011Y8
The MI will not light up for this self-diagnosis.
NOTE:
If DTC P0089 is displayed w](/manual-img/5/57403/w960_57403-1835.png)
EC-1432
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DTC P0089 FUEL PUMP
DTC P0089 FUEL PUMPPFP:16700
On Board Diagnosis LogicEBS011Y8
The MI will not light up for this self-diagnosis.
NOTE:
If DTC P0089 is displayed with DTC P0652 or P0653, first perform trouble diagnosis for DTC P0652
or P0653. Refer to EC-1579, "
DTC P0652, P0653 SENSOR POWER SUPPLY" .
DTC Confirmation ProcedureEBS011Y9
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Let engine idle for at least 30 seconds.
4. If DTC is detected, go to EC-1432, "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Let engine idle for at least 30 seconds.
3. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
4. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
5. If DTC is detected, go to EC-1432, "
Diagnostic Procedure" .
Diagnostic ProcedureEBS011YA
1. CHECK FUEL TRANSPORT PUMP OPERATION
Perform Diagnostic Procedure for fuel transport pump. Refer to EC-1685
.
OK or NG
OK >> GO TO 2.
NG >> Follow the instruction of Diagnostic Procedure for fuel transport pump.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0089
0089Fuel pump performanceFuel pressure is too much higher than the target
value.
Fuel pump
Air mixed with fuel
Lack of fuel
Fuel rail pressure sensor
Fuel transport pump operation
SEF817Y
Page 1837 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual DTC P0089 FUEL PUMP
EC-1433
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2. PERFORM FUEL PUMP LEARNING VALUE CLEARING
NOTE:
If the DTC is detected because of air mixed with fuel (i.e.: caused b NISSAN X-TRAIL 2005 Service Repair Manual DTC P0089 FUEL PUMP
EC-1433
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2. PERFORM FUEL PUMP LEARNING VALUE CLEARING
NOTE:
If the DTC is detected because of air mixed with fuel (i.e.: caused b](/manual-img/5/57403/w960_57403-1836.png)
DTC P0089 FUEL PUMP
EC-1433
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2. PERFORM FUEL PUMP LEARNING VALUE CLEARING
NOTE:
If the DTC is detected because of air mixed with fuel (i.e.: caused by lack of fuel), it may become normal by
performing following procedure.
With CONSULT-II
1. Turn ignition switch ON.
2. Perform Fuel Pump Learning value clearing. Refer to EC-1370, "
Fuel Pump Learning Value Clearing" .
3. Start engine and let it idle for at least 60 seconds.
4. Select “SELF-DIAG RESULT” mode with CONSULT-II.
5. Touch “ERASE”.
6. Perform EC-1432, "
DTC Confirmation Procedure" , again.
7. Is DTC detected again?
Without CONSULT-II
1. Turn ignition switch ON.
2. Perform Fuel Pump Learning Value Clearing. Refer to EC-1370, "
Fuel Pump Learning Value Clearing" .
3. Start engine and let it idle for at least 60 seconds.
4. Erase the Diagnostic Test Mode II (Self-diagnostic results) memory. Refer to EC-1375
.
5. Perform EC-1432, "
DTC Confirmation Procedure" , again.
6. Is DTC detected again?
Ye s o r N o
Ye s > > G O T O 3 .
No >>INSPECTION END
3. CHECK FUEL RAIL PRESSURE SENSOR
Refer to EC-1471, "
Component Inspection" .
OK or NG
OK >> GO TO 4.
NG >> Replace fuel rail.
4. CHECK FUEL PUMP
Perform EC-1570, "
DTC Confirmation Procedure" .
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5. REPLACE FUEL PUMP
1. Replace Fuel pump.
2. Perform Fuel Pump Learning Value Clearing. Refer to EC-1370, "
Fuel Pump Learning Value Clearing" .
>>INSPECTION END
6. CHECK INTERMITTENT INCIDENT
Refer to EC-1414, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Removal and InstallationEBS011YB
FUEL PUMP
Refer to EM-171, "FUEL PUMP" .