2003 NISSAN X-TRAIL ECO mode

EC-954
[YD (WITH EURO-OBD)]
DTC P0088 FUEL SYSTEM

DTC P0088 FUEL SYSTEMPFP:17520
On Board Diagnosis LogicEBS0117X
DTC Confirmation ProcedureEBS0117Y
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 1st trip DTC is detected, go to EC-954, "
Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
Diagnostic ProcedureEBS0117Z
1. CHECK FUEL RAIL PRESSURE SENSOR
Refer to EC-1002, "
Component Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Replace fuel rail.
2. CHECK FUEL INJECTOR
Refer to EC-1010, "
Component Inspection" .
OK or NG
OK >> GO TO 3.
NG >> Replace fuel injector.
3. CHECK FUEL PUMP
Refer to EC-1097, "
Component Inspection" .
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0088 Fuel rail pressure too highFuel pressure is too much higher than the speci-
fied value.

Fuel pump

Fuel injector

Fuel rail pressure sensor
SEF817Y

EC-956
[YD (WITH EURO-OBD)]
DTC P0089 FUEL PUMP

DTC P0089 FUEL PUMPPFP:16700
On Board Diagnosis LogicEBS01181
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-956, "
Diagnostic Procedure"
.
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-1194
.
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 Fuel 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-957
[YD (WITH EURO-OBD)]
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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-890, "
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-956, "
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-890, "
Fuel Pump Learning Value Clearing" .
3. Start engine and let it idle for at least 60 seconds.
4. Select MODE 4 with GST.
5. Touch “ERASE”.
6. Perform EC-956, "
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 EC-1002, "
Component Inspection" .
OK or NG
OK >> GO TO 4.
NG >> Replace fuel rail.
4. CHECK FUEL PUMP
Perform EC-1094, "
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-890, "
Fuel Pump Learning Value Clearing" .
>>INSPECTION END
6. CHECK INTERMITTENT INCIDENT
Refer to EC-936, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END

DTC P0093 FUEL SYSTEM
EC-959
[YD (WITH EURO-OBD)]
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DTC P0093 FUEL SYSTEMPFP:17520
On Board Diagnosis LogicEBS01185
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-959, "
Diagnostic Procedure"
.
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-1194
.
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 Fuel 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-960
[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-890, "
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-959, "
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-890, "
Fuel Pump Learning Value Clearing" .
3. Start engine and let it idle for at least 60 seconds.
4. Select MODE 4 with GST.
5. Touch “ERASE”.
6. Perform EC-959, "
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-961, "
Component Inspection" .
OK or NG
OK >> GO TO 5.
NG >> Replace fuel rail.
5. CHECK INTERMITTENT INCIDENT
Refer to EC-936, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
OK or NG
OK >> GO TO 6.
NG >> Repair or replace.

DTC P0093 FUEL SYSTEM
EC-961
[YD (WITH EURO-OBD)]
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6. REPLACE FUEL PUMP
1. Replace fuel pump.
2. Perform Fuel Pump Learning Value Clearing. Refer to EC-890, "
Fuel Pump Learning Value Clearing" .
>>INSPECTION END
Component InspectionEBS011V0
FUEL RAIL PRESSURE RELIEF VALVE
With CONSULT-II
WARNING:

Confirm that the engine is cooled down and there are no fire hazards near the vehicle.

Prepare pans or saucers under the disconnected fuel line because the fuel may spill out.
1. Turn ignition switch OFF.
2. Remove fuel hose from fuel rail pressure relief valve.
3. Attach a blind cap or plug to removed hose.
4. Turn ignition switch ON.
5. Select “PRES REGULATOR” in “ACTIVE TEST MODE” with
CONSULT-II.
6. Start engine and keep engine speed 2,000 rpm.
7. Raise fuel pressure to 160 MPa with touching “UP” or “Qu” on
the CONSULT-II screen.
8. Confirm that the fuel does not come out from the fuel rail pres-
sure relief valve.
WARNING:

Be careful not to allow leaked fuel to contaminate engine
compartment. Especially, ensure to keep engine mount
insulator clear of fuel.

If the fuel comes out, stop the engine immediately.
Without CONSULT-II
WARNING:

Confirm that the engine is cooled down and there are no fire hazards near the vehicle.

Prepare pans or saucers under the disconnected fuel line because the fuel may spill out.
1. Turn ignition switch OFF.
2. Remove fuel hose from fuel rail pressure relief valve.
3. Attach a blind cap or plug to removed hose.
4. Start engine and keep engine speed more than 4,000 rpm for at
least 5 seconds.
5. Confirm that the fuel does not come out from the fuel rail pres-
sure relief valve.
WARNING:

Be careful not to allow leaked fuel to contaminate engine
compartment. Especially, ensure to keep engine mount
insulator clear of fuel.

If the fuel comes out, stop the engine immediately.
PBIB1941E
PBIB0587E
PBIB1941E

EC-964
[YD (WITH EURO-OBD)]
DTC P0101 MAF SENSOR

DTC Confirmation ProcedureEBS011OH
CAUTION:
Always drive vehicle at a safe speed.
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 40 seconds.
4. Drive vehicle under the following condition.
5. Release accelerator pedal for at least 10 seconds.
Do not depress brake pedal during this procedure.
6. If 1st trip DTC is detected, go to EC-966, "
Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
CKPS·RPM Approx. 2800 rpm
VHCL SPEED SE 70 - 100 km/h
Shift lever 4th position
MBIB1085E

EC-968
[YD (WITH EURO-OBD)]
DTC P0101 MAF SENSOR

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-1084, "
Diagnostic Procedure" .
8. CHECK INTAKE AIR TEMPERATURE SENSOR
Refer to EC-980, "
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