2005 NISSAN X-TRAIL check

EC-1068
[YD (WITH EURO-OBD)]
DTC P0089 FUEL PUMP

DTC P0089 FUEL PUMPPFP:16700
On Board Diagnosis LogicEBS01181
NOTE:

If DTC P0089 is displayed with DTC P0652 or P0653, first perform trouble diagnosis for DTC P0652
or P0653. Refer to EC-1240, "
DTC P0652, P0653 SENSOR POWER SUPPLY" .
DTC Confirmation ProcedureEBS01182
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 1st trip DTC is detected, go to EC-1068, "
Diagnostic Proce-
dure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
Diagnostic ProcedureEBS01183
1. CHECK FUEL TRANSPORT PUMP OPERATION
Perform Diagnostic Procedure for fuel transport pump. Refer to EC-1334
.
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

DTC P0089 FUEL PUMP
EC-1069
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

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-994, "
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-1068, "
DTC Confirmation Procedure" , again.
7. Is 1st trip DTC detected again?
With GST
1. Turn ignition switch ON.
2. Perform Fuel Pump Learning value clearing. Refer to EC-994, "
Fuel Pump Learning Value Clearing" .
3. Start engine and let it idle for at least 60 seconds.
4. Select Service $04 with GST.
5. Touch “ERASE”.
6. Perform EC-1068, "
DTC Confirmation Procedure" , again.
7. Is 1st trip 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 E C - 111 5 , "
Component Inspection" .
OK or NG
OK >> GO TO 4.
NG >> Replace fuel rail.
4. CHECK FUEL PUMP
Perform EC-1231, "
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-994, "
Fuel Pump Learning Value Clearing" .
>>INSPECTION END
6. CHECK INTERMITTENT INCIDENT
Refer to EC-1045, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END

DTC P0093 FUEL SYSTEM
EC-1071
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

DTC P0093 FUEL SYSTEMPFP:17520
On Board Diagnosis LogicEBS01185
NOTE:

If DTC P0093 is displayed with DTC P0652 or P0653, first perform trouble diagnosis for DTC P0652
or P0653. Refer to EC-1240, "
DTC P0652, P0653 SENSOR POWER SUPPLY" .
DTC Confirmation ProcedureEBS01186
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 keep engine speed more than 4,000 rpm for at
least 5 seconds.
4. If 1st trip DTC is detected, go to EC-1071, "
Diagnostic Proce-
dure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
Diagnostic ProcedureEBS01187
1. CHECK FUEL TRANSPORT PUMP OPERATION
Perform Diagnostic Procedure for fuel transport pump. Refer to EC-1334
.
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
P0093
0093Fuel system leakECM detects a fuel system leak.
(The relation between the output voltage to the
fuel pump and input voltage from the fuel rail
pressure sensor is out of the normal range.)

Fuel pump

Fuel rail

Fuel pipe

Fuel rail pressure relief valve

Air mixed with fuel

Lack of fuel

Fuel transport pump operation
SEF817Y

EC-1072
[YD (WITH EURO-OBD)]
DTC P0093 FUEL SYSTEM

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-994, "
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-1071, "
DTC Confirmation Procedure" , again.
7. Is 1st trip DTC detected again?
With GST
1. Turn ignition switch ON.
2. Perform Fuel Pump Learning value clearing. Refer to EC-994, "
Fuel Pump Learning Value Clearing" .
3. Start engine and let it idle for at least 60 seconds.
4. Select Service $04 with GST.
5. Touch “ERASE”.
6. Perform EC-1071, "
DTC Confirmation Procedure" , again.
7. Is 1st trip DTC detected again?
Ye s o r N o
Yes >> GO TO 3.
No >>INSPECTION END
3. CHECK FUEL LINE FOR LEAK
1. Start engine.
2. Visually check the following for fuel leak.
–Fuel tube from fuel pump to fuel rail
–Fuel rail
–Fuel tube from fuel rail to fuel injector
3. Also check for improper connection or pinches.
OK or NG
OK >> GO TO 4.
NG >> Repair malfunctioning part.
4. CHECK FUEL RAIL PRESSURE RELIEF VALVE
Refer to EC-1073, "
Component Inspection" .
OK or NG
OK >> GO TO 5.
NG >> Replace fuel rail.
5. CHECK INTERMITTENT INCIDENT
Refer to EC-1045, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
OK or NG
OK >> GO TO 6.
NG >> Repair or replace.

EC-1078
[YD (WITH EURO-OBD)]
DTC P0101 MAF SENSOR

Specification data are reference values, and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic ProcedureEBS011OJ
1. CHECK INTAKE SYSTEM
1. Check air cleaner for clogging.
2. Check the following for connection and cracks.
–Air duct
–Va c u u m h o s e s
–Intake air passage between air duct and intake manifold
OK or NG
OK >> GO TO 2.
NG >> Reconnect or repair the parts.
TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage)
54 W Mass air flow sensor[Engine is running]

Warm-up condition

Idle speed1.8 - 2.3V
[Engine is running]

Warm-up condition

Engine speed is 2,000 rpm2.5 - 3.0V
67 —Sensor ground
(Sensors shield circuit)[Engine is running]

Warm-up condition

Idle speedApproximately 0.3V
73 BMass air flow sensor
ground[Engine is running]

Warm-up condition

Idle speedApproximately 0.3V

DTC P0101 MAF SENSOR
EC-1079
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

2. 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 3.
NG >> Repair or replace ground connections.
PBIB2020E

EC-1080
[YD (WITH EURO-OBD)]
DTC P0101 MAF SENSOR

3. CHECK MAFS POWER SUPPLY CIRCUIT
1. Disconnect mass air flow sensor harness connector.
2. Turn ignition switch ON.
3. Check voltage between mass air flow sensor terminals 2 and
ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors F30, M63

Harness for open or short between ECM relay and mass air flow sensor

Harness for open or short between mass air flow sensor and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK MAFS GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between mass air flow sensor terminal 3 and ECM terminal 73.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 6.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
PBIB1891E
Voltage: Battery voltage
PBIB1168E
Continuity should exist.

DTC P0101 MAF SENSOR
EC-1081
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC

6. CHECK MAFS INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between mass air flow sensor terminal 4 and ECM terminal 54. Refer to Wiring
Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK EGR VOLUME CONTROL VALVE FUNCTION
With CONSULT-II
1. Reconnect all harness connectors disconnected.
2. Remove EGR volume control valve from cylinder head.
3. Turn ignition switch ON.
4. Perform “EGR VOL CONT/V” in “ACTIVE TEST” mode with CONSULT-II. Check that EGR volume control
valve shaft moves smoothly forward and backward according to the valve opening.
NOTE:
When installing the EGR volume control valve, make sure that the shaft is in the same position before
checking.
Without CONSULT-II
1. Reconnect all harness connectors disconnected.
2. Remove EGR volume control valve from cylinder head.
3. Turn ignition switch ON and OFF.
4. Check that EGR volume control valve shaft moves smoothly for-
ward and backward according to the ignition switch position.
NOTE:
When installing the EGR volume control valve, make sure that
the shaft is in the same position before checking.
OK or NG
OK >> GO TO 8.
NG >> Check EGR volume control valve and its circuit. Refer to
EC-1196, "
Diagnostic Procedure" .
8. CHECK INTAKE AIR TEMPERATURE SENSOR
Refer to EC-1092, "
Component Inspection" .
OK or NG
OK >> GO TO 9.
NG >> Replace mass sir flow sensor (with intake air temperature sensor).Continuity should exist.
SEF819Y
SEF560W