Nissan Almera Tino V10. Manual — part 591
EC-1190
[YD (WITH EURO-OBD)]
DTC P1272 FUEL PUMP
Wiring Diagram
EBS013G1
YEC509A
DTC P1272 FUEL PUMP
EC-1191
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
Diagnostic Procedure
EBS013G2
1.
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-956, "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-1189, "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-956, "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-1189, "DTC Confirmation Procedure"
, again.
7.
Is 1st trip DTC detected again?
Yes or No
Yes
>> GO TO 2.
No
>> INSPECTION END
2.
CHECK FUEL PUMP POWER SUPPLY 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 1.
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 open circuit or short to ground or short to power in harness or connectors.
PBIB1943E
Continuity should exist.
EC-1192
[YD (WITH EURO-OBD)]
DTC P1272 FUEL PUMP
3.
CHECK FUEL PUMP GROUND CIRCUIT FOR OPEN AND SHORT
1.
Check harness continuity between ECM terminal 29 and fuel pump terminal 2.
Refer to Wiring Diagram.
2.
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 FUEL PUMP
Refer to
EC-1192, "Component Inspection"
.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 7.
5.
CHECK FUEL RAIL PRESSURE SENSOR
Refer to
EC-1063, "Component Inspection"
.
OK or NG
OK
>> GO TO 6.
NG
>> Replace fuel rail.
6.
CHECK INTERMITTENT INCIDENT
Refer to
EC-1002, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
OK or NG
OK
>> GO TO 7.
NG
>> Repair or replace.
7.
REPLACE FUEL PUMP
1.
Replace fuel pump.
2.
Perform Fuel Pump Learning Value Clearing. Refer to
EC-956, "Fuel Pump Learning Value Clearing"
.
>> INSPECTION END
Component Inspection
EBS013G3
FUEL PUMP
1.
Check continuity between fuel supply pump terminals 1 and 2.
2.
If NG, replace fuel pump.
Continuity should exist.
Continuity should exist.
MBIB0623E
DTC P1272 FUEL PUMP
EC-1193
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
Removal and Installation
EBS013G4
FUEL RAIL
Refer to
EM-147, "INJECTION TUBE AND FUEL INJECTOR"
.
FUEL PUMP
Refer to
.
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