fuel pump NISSAN X-TRAIL 2003 Service Manual Online

EC-838
[QR (WITHOUT EURO-OBD)]
FUEL PUMP CIRCUIT

RHD MODELS
TBWA0633E

FUEL PUMP CIRCUIT
EC-839
[QR (WITHOUT EURO-OBD)]
C
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EC

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 ProcedureEBS0114R
1. CHECK OVERALL FUNCTION
1. Turn ignition switch ON.
2. Pinch fuel feed hose with two fingers.
Fuel pressure pulsation should be felt on the fuel hose for 1
second after ignition switch is turned ON.
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
2. CHECK FUEL PUMP RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect fuel pump relay.
3. Turn ignition switch ON.
4. Check voltage between fuel pump relay terminals 1, 5 and
ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
114 B/OR Fuel pump relay[Ignition switch: ON]

For 1 second after turning ignition switch ON
[Engine is running]0 - 1.0V
[Ignition switch: ON]

More than 1 second after turning ignition
switch ONBATTERY VOLTAGE
(11 - 14V)
PBIB1983E
PBIB1974E
Voltage: Battery voltage
MBIB0191E

EC-840
[QR (WITHOUT EURO-OBD)]
FUEL PUMP CIRCUIT

3. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors M17, B1

Fuse block (J/B) connector M1

15A fuse

Harness for open or short between fuel pump relay and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK CONDENSER CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.
3. Check harness continuity between fuel pump relay terminal 3 and condenser terminal 1, condenser termi-
nal 2 and ground.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors B22, B128 (RHD models)

Harness for open or short between fuel pump relay and condenser

Harness for open or short between condenser and ground
>> Repair open circuit or short to ground or short to power in harness connectors.
6. CHECK CONDENSER
Refer to EC-842, "
Component Inspection" .
OK or NG
OK >> GO TO 7.
NG >> Replace condenser.
7. CHECK FUEL PUMP POWER SUPPLY AND GROUND CIRCUIT FOR OPEN AND SHORT
1. Disconnect “fuel level sensor unit and fuel pump” harness con-
nector.
2. Check harness continuity between fuel pump relay terminal 3
and “fuel level sensor unit and fuel pump” terminal 5, “fuel level
sensor unit and fuel pump” terminal 3 and ground.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 9.
NG >> GO TO 8.Continuity should exist.
Continuity should exist.PBIB0506E

FUEL PUMP CIRCUIT
EC-841
[QR (WITHOUT EURO-OBD)]
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EC

8. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors B22, B128 (RHD models)

Harness for open or short between fuel pump relay and “fuel level sensor unit and fuel pump”

Harness for open or short between “fuel level sensor unit and fuel pump” and ground
>> Repair open circuit or short to ground or short to power in harness connectors.
9. CHECK FUEL PUMP RELAY OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between fuel pump relay terminal 2 and ECM terminal 114.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 11.
NG >> GO TO 10.
10. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors B1, M17 (LHD models)

Harness connectors B2, M18 (RHD models)

Harness for open or short between fuel pump relay and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
11 . CHECK FUEL PUMP RELAY
Refer to EC-842, "
Component Inspection" .
OK or NG
OK >> GO TO 12.
NG >> Replace fuel pump relay.
12. CHECK FUEL PUMP
Refer to EC-842, "
Component Inspection" .
OK or NG
OK >> GO TO 13.
NG >> Replace fuel pump.
13. CHECK INTERMITTENT INCIDENT
Refer to EC-570, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END Continuity should exist.

EC-842
[QR (WITHOUT EURO-OBD)]
FUEL PUMP CIRCUIT

Component InspectionEBS0114S
FUEL PUMP RELAY
Check continuity between terminals 3 and 5 under the following con-
ditions.
FUEL PUMP
1. Disconnect “fuel level sensor unit and fuel pump” harness connector.
2. Check resistance between “fuel level sensor unit and fuel pump”
terminals 3 and 5.
CONDENSER
1. Turn ignition switch OFF
2. Disconnect condenser harness connector.
3. Check resistance between condenser terminal 1 and 2.
Removal and InstallationEBS011UV
FUEL PUMP
Refer to FL-4, "FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY" .
Conditions Continuity
12V direct current supply between terminals
1 and 2Ye s
No current supply No
PBIB0098E
Resistance: Approximately 0.2 - 5.0Ω [at 25°C (77°F)]
PBIB0658E
Resistance: Above 1MΩ [at 25°C (77°F)]
MBIB0031E

SERVICE DATA AND SPECIFICATIONS (SDS)
EC-873
[QR (WITHOUT EURO-OBD)]
C
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Camshaft Position Sensor (PHASE)EBS0115H
Refer to EC-653, "Component Inspection" .
Throttle Control MotorEBS0115I
InjectorEBS0115J
Fuel PumpEBS0115K
Resistance [at 25°C (77°F)] Approximately 1 - 15Ω
Resistance [at 10 - 60°C (50 - 140°F)] 13.5 - 17.5Ω
Resistance [at 25°C (77°F)] Approximately 0.2 - 5.0Ω

EC-874
[YD (WITH EURO-OBD)]
INDEX FOR DTC

[YD (WITH EURO-OBD)]INDEX FOR DTCPFP:00024
Alphabetical IndexEBS0116O
Check if the vehicle is a model with Euro-OBD (E-OBD) system or not by the “Type approval number” on the
identification plate. Refer to GI-44, "
IDENTIFICATION PLATE" .
NOTE:
If DTC U1000 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000. Refer to
EC-944, "
DTC U1000 CAN COMMUNICATION LINE" .
X: Applicable —: Not applicable
Items
(CONSULT-II screen terms) DTC*
1 *2
(CONSULT-II, GST )TripMI lighting
up Reference page
APP SEN 1/CIRCUIT P0122 1 —EC-987
APP SEN 1/CIRCUIT P0123 1 —EC-987
APP SEN 2/CIRCUIT P0222 1 —EC-1025
APP SEN 2/CIRCUIT P0223 1 —EC-1025
APP SENSOR P2135 1 —EC-1149
BARO SEN/CIRC P2228 3×EC-1167
BARO SEN/CIRC P2229 3×EC-1167
BATTERY VOLTAGE P0563 1 —EC-1087
CAN COMM CIRCUIT U1000 1 —EC-944
CKP SEN/CIRCUIT P0335 3×EC-1044
CKP SENSOR P0336 3×EC-1050
CMP SEN/CIRCUIT P0340 3×EC-1056
CMP SENSOR P0341 3×EC-1062
CMP/CKP RELATION P0016 3×EC-947
CYL1 INJECTOR P0201 3×EC-1005
CYL2 INJECTOR P0202 3×EC-1005
CYL3 INJECTOR P0203 3×EC-1005
CYL4 INJECTOR P0204 3×EC-1005
ECM P0605 3×EC-1089
ECM P0606 3×EC-1091
ECM RELAY P0686 1 —E C - 111 0
ECT SEN/CIRCUIT P0117 3×EC-981
ECT SEN/CIRCUIT P0118 3×EC-981
EGR SYSTEM P0401 3×EC-1073
EGR VALVE P0404 3×EC-1080
ENG OVER TEMP P0217 1×EC-1011
FRP RELIEF VALVE P1272 3×EC-1127
FRP SEN/CIRC P0192 3×EC-997
FRP SEN/CIRC P0193 3×EC-997
FUEL LEAK P0093 3×EC-959
FUEL PUMP P0089 3×EC-956
FUEL PUMP P1273 3×EC-1134
FUEL PUMP P1274 1×EC-1139
FUEL PUMP P1275 1×EC-1144
FUEL PUMP/CIRC P0628 3×EC-1093
FUEL PUMP/CIRC P0629 3×EC-1093

EC-876
[YD (WITH EURO-OBD)]
INDEX FOR DTC

DTC No. IndexEBS0116P
Check if the vehicle is a model with Euro-OBD (E-OBD) system or not by the “Type approval number” on the
identification plate. Refer to GI-44, "
IDENTIFICATION PLATE" .
NOTE:
If DTC U1000 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000. Refer to
EC-944, "
DTC U1000 CAN COMMUNICATION LINE" .
X: Applicable —: Not applicable
DTC*
1 *2
(CONSULT-II, GST)Items
(CONSULT-II screen item) TripMI lighting
upReference page
U1000 CAN COMM CIRCUIT 1 —EC-944
P0000NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.—— —
P0016 CMP/CKP RELATION 3×EC-947
P0045 TC BOOST SOL/CIRC 3×EC-949
P0088 HIGH FUEL PRESS 3×EC-954
P0089 FUEL PUMP 3×EC-956
P0093 FUEL LEAK 3×EC-959
P0101 MAF SENSOR 3×EC-963
P0102 MAF SEN/CIRCUIT 3×EC-970
P0103 MAF SEN/CIRCUIT 3×EC-970
P0112 IAT SEN/CIRCUIT 3×EC-976
P0113 IAT SEN/CIRCUIT 3×EC-976
P0117 ECT SEN/CIRCUIT 3×EC-981
P0118 ECT SEN/CIRCUIT 3×EC-981
P0122 APP SEN 1/CIRCUIT 1 —EC-987
P0123 APP SEN 1/CIRCUIT 1 —EC-987
P0182 FUEL TEMP SEN/CIRC 3×EC-993
P0183 FUEL TEMP SEN/CIRC 3×EC-993
P0192 FRP SEN/CIRC 3×EC-997
P0193 FRP SEN/CIRC 3×EC-997
P0200 INJECTOR 3×EC-1003
P0201 CYL1 INJECTOR 3×EC-1005
P0202 CYL2 INJECTOR 3×EC-1005
P0203 CYL3 INJECTOR 3×EC-1005
P0204 CYL4 INJECTOR 3×EC-1005
P0217 ENG OVER TEMP 1×EC-1011
P0222 APP SEN 2/CIRCUIT 1 —EC-1025
P0223 APP SEN 2/CIRCUIT 1 —EC-1025
P0234 TC SYSTEM 1 —EC-1031
P0237 TC BOOST SEN/CIRC 3×EC-1038
P0238 TC BOOST SEN/CIRC 3×EC-1038
P0335 CKP SEN/CIRCUIT 3×EC-1044
P0336 CKP SENSOR 3×EC-1050
P0340 CMP SEN/CIRCUIT 3×EC-1056
P0341 CMP SENSOR 3×EC-1062
P0380 GLOW RELAY 3×EC-1069

INDEX FOR DTC
EC-877
[YD (WITH EURO-OBD)]
C
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*1: 1st trip DTC No. and 2nd trip DTC No. are the same as DTC No.
*2: This number is prescribed by ISO 15031-6.P0401 EGR SYSTEM 3×EC-1073
P0404 EGR VALVE 3×EC-1080
P0563 BATTERY VOLTAGE 1 —EC-1087
P0605 ECM 3×EC-1089
P0606 ECM 3×EC-1091
P0628 FUEL PUMP/CIRC 3×EC-1093
P0629 FUEL PUMP/CIRC 3×EC-1093
P0642 SENSOR PWR/CIRC1 3×EC-1098
P0643 SENSOR PWR/CIRC1 3×EC-1098
P0652 SENSOR PWR/CIRC2 3×EC-1104
P0653 SENSOR PWR/CIRC2 3×EC-1104
P0686 ECM RELAY 1 —E C - 111 0
P1211 TCS C/U FUNCTN 1 —E C - 111 3
P1212 TCS/CIRC 1 —E C - 111 4
P1260 INJ ADJ RES/CIRC1 3×E C - 111 5
P1261 INJ ADJ RES/CIRC1 3×E C - 111 5
P1262 INJ ADJ RES/CIRC2 3×E C - 111 5
P1263 INJ ADJ RES/CIRC2 3×E C - 111 5
P1264 INJ ADJ RES/CIRC3 3×E C - 111 5
P1265 INJ ADJ RES/CIRC3 3×E C - 111 5
P1266 INJ ADJ RES/CIRC4 3×E C - 111 5
P1267 INJ ADJ RES/CIRC4 3×E C - 111 5
P1268 INJECTOR 1 1 —EC-1121
P1269 INJECTOR 2 1 —EC-1121
P1270 INJECTOR 3 1 —EC-1121
P1271 INJECTOR 4 1 —EC-1121
P1272 FRP RELIEF VALVE 3×EC-1127
P1273 FUEL PUMP 3×EC-1134
P1274 FUEL PUMP 1×EC-1139
P1275 FUEL PUMP 1×EC-1144
P1610 - P1617 NATS MALFUNTION 1 —EC-896
P2135 APP SENSOR 1 —EC-1149
P2146 INJ PWR/CIRC 3×EC-1155
P2147 INJECTOR/CIRC 3×EC-1160
P2148 INJECTOR/CIRC 3×EC-1160
P2149 INJ PWR/CIRC 3×EC-1155
P2228 BARO SEN/CIRC 3×EC-1167
P2229 BARO SEN/CIRC 3×EC-1167
DTC*1 *2
(CONSULT-II, GST)Items
(CONSULT-II screen item) TripMI lighting
upReference page

EC-880
[YD (WITH EURO-OBD)]
PRECAUTIONS


After performing each TROUBLE DIAGNOSIS, perform DTC
Confirmation Procedure or Overall Function Check.
The DTC should not be displayed in the DTC Confirmation
Procedure if the repair is completed. The Overall Function
Check should be a good result if the repair is completed.

When measuring ECM signals with a circuit tester, never
allow the two tester probes to contact.
Accidental contact of probes will cause a short circuit and
damage the ECM power transistor.

Do not use ECM ground terminals when measuring input/
output voltage. Doing so may result in damage to the ECM's
transistor. Use a ground other than ECM terminals, such as
the ground.

Do not disassemble fuel pump.
If NG, take proper action.

Do not disassemble fuel injector.
If NG, replace fuel injector.

Do not depress accelerator pedal when staring.

Immediately after staring, do not rev up engine unnecessar-
ily.

Do not rev up engine just prior to shutdown.

When installing C.B. ham radio or a mobile phone, be sure
to observe the following as it may adversely affect elec-
tronic control systems depending on installation location.
–Keep the antenna as far as possible from the electronic
control units.
–Keep the antenna feeder line more than 20 cm (8 in) away
from the harness of electronic controls.
Do not let them run parallel for a long distance.
–Adjust the antenna and feeder line so that the standingwave
radio can be kept smaller.
–Be sure to ground the radio to vehicle body.
SAT652J
SEF348N
SEF709Y
SEF708Y