Nissan Primera P12. Instruction — part 340
DTC P0628, P0629 FUEL PUMP
EC-545
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
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M
A
EC
Wiring Diagram
EBS01594
MBWA0396E
EC-546
[YD (WITHOUT EURO-OBD)]
DTC P0628, P0629 FUEL PUMP
Diagnostic Procedure
EBS01595
1.
CHECK ECM OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector and fuel pump harness
connector.
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 2.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
2.
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 3.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
3.
CHECK FUEL PUMP
Refer to
EC-547, "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-368, "Fuel Pump Learning Value Clearing"
.
>> INSPECTION END
5.
CHECK INTERMITTENT INCIDENT
Refer to
EC-408, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
>> INSPECTION END
PBIB1943E
Continuity should exist.
Continuity should exist.
DTC P0628, P0629 FUEL PUMP
EC-547
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
Component Inspection
EBS01596
FUEL PUMP
1.
Check continuity between fuel supply pump terminals 1 and 2.
2.
If NG, replace fuel pump.
Removal and Installation
EBS01597
FUEL PUMP
Refer to
.
Continuity should exist.
MBIB0623E
EC-548
[YD (WITHOUT EURO-OBD)]
DTC P0642, P0643 SENSOR POWER SUPPLY
DTC P0642, P0643 SENSOR POWER SUPPLY
PFP:18002
Description
EBS01598
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensors detect the accelera-
tor pedal position and sends a signal to the ECM. The ECM uses the
signal to determine the amount of fuel to be injected.
CONSULT-II Reference Value in Data Monitor Mode
EBS01599
Specification data are reference values.
*: This signal is converted by ECM internally. Thus, it differs from ECM terminal voltage.
ECM Terminals and Reference Value
EBS0159A
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.
PBIB1741E
MONITOR ITEM
CONDITION
SPECIFICATION
ACCEL POS SEN*
●
Ignition switch: ON
(Engine stopped)
Accelerator pedal: fully released
0.2 - 0.7V
Accelerator pedal: fully depressed
3.9 - 4.9V
ACCEL SEN 2*
●
Ignition switch: ON
(Engine stopped)
Accelerator pedal: fully released
0.1 - 0.4V
Accelerator pedal: fully depressed
1.9 - 2.4V
TERMI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA
(DC Voltage)
82
L/R
Accelerator pedal position
sensor 1 power supply
[Ignition switch ON]
Approximately 5.3V
83
L/W
Accelerator pedal position
sensor 1
[Ignition switch ON]
●
Engine stopped
●
Accelerator pedal fully released
0.5 - 1.0V
[Ignition switch ON]
●
Engine stopped
●
Accelerator pedal fully depressed
4.2 - 5.2V
84
L
Accelerator pedal position
sensor 1 ground
[Ignition switch ON]
Approximately 0.3V
85
—
Sensor ground
(Accelerator pedal posi-
tion sensor shield circuit)
[Ignition switch ON]
Approximately 0.3V
90
R
Accelerator pedal position
sensor 2 power supply
[Ignition switch ON]
Approximately 5.3V
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