Nissan Almera Tino V10. Instruction — part 427
EC-534
[QG (WITH EURO-OBD)]
FUEL PUMP CIRCUIT
8.
CHECK FUEL PUMP RELAY
Refer to
EC-534, "Component Inspection"
.
OK or NG
OK
>> GO TO 9.
NG
>> Replace fuel pump relay.
9.
CHECK FUEL PUMP
Refer to
EC-534, "Component Inspection"
.
OK or NG
OK
>> GO TO 10.
NG
>> Replace fuel pump.
10.
CHECK INTERMITTENT INCIDENT
Refer to
EC-138, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
>> INSPECTION END
Component Inspection
EBS00QTM
FUEL PUMP RELAY
Check continuity between terminals 3 and 4, 3 and 5 under the fol-
lowing conditions.
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.
Removal and Installation
EBS00QTN
FUEL PUMP
Refer to “Fuel Pump, Fuel Level Sensor Unit and Fuel Filter”, FE-9.
Conditions
Terminals
Continuity
12V direct current supply
between terminals 1 and 2
3 and 4
No
3 and 5
Yes
No current supply
3 and 4
Yes
3 and 5
No
MBIB0056E
Resistance: Approximately 1.0
Ω
[at 25
°
C (77
°
F)]
PBIB0658E
REFRIGERANT PRESSURE SENSOR
EC-535
[QG (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
REFRIGERANT PRESSURE SENSOR
PFP:92136
Component Description
EBS00QTO
The refrigerant pressure sensor is installed at the liquid tank of the
air conditioner system. The sensor uses an electrostatic volume
pressure transducer to convert refrigerant pressure to voltage. The
voltage signal is sent to ECM, and ECM controls cooling fan system.
MBIB0116E
SEF099X
EC-536
[QG (WITH EURO-OBD)]
REFRIGERANT PRESSURE SENSOR
Wiring Diagram
EBS00QTP
YEC476A
REFRIGERANT PRESSURE SENSOR
EC-537
[QG (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
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 Procedure
EBS00QTQ
1.
CHECK REFRIGERANT PRESSURE SENSOR OVERALL FUNCTION
1.
Start engine and warm it up to normal operating temperature.
2.
Turn A/C switch and blower switch “ON”.
3.
Check voltage between ECM terminal 69 and ground with CON-
SULT-II or tester.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 2.
TERMI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
46
R
Sensor power supply
(Refrigerant pressure sensor)
[Ignition switch “ON”]
Approximately 5V
57
B
Sensors' ground
(Power steering pressure
sensor/Refrigerant pressure
sensor)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 0V
69
L
Refrigerant pressure sensor
[Engine is running]
●
Warm-up condition
●
Both A/C switch and blower switch are “ON”.
(Compressor operates.)
1.0 - 4.0V
Voltage: 1.0 - 4.0V
MBIB0035E
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