Infiniti G35 (V35). Manual — part 449
IGNITION SIGNAL
EC-677
C
D
E
F
G
H
I
J
K
L
M
A
EC
CONDENSER
1.
Turn ignition switch OFF.
2.
Disconnect condenser harness connector.
3.
Check resistance between condenser terminals 1 and 2.
Removal and Installation
NBS0011M
IGNITION COIL WITH POWER TRANSISTOR
Refer to
Resistance: Above 1M
Ω
[at 25
°
C (77
°
F)]
PBIB0794E
EC-678
REFRIGERANT PRESSURE SENSOR
REFRIGERANT PRESSURE SENSOR
PFP:92136
Component Description
NBS0011Z
The refrigerant pressure sensor is installed at the condenser 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.
PBIB1009E
PBIB2657E
REFRIGERANT PRESSURE SENSOR
EC-679
C
D
E
F
G
H
I
J
K
L
M
A
EC
Wiring Diagram
NBS00120
TBWM0366E
EC-680
REFRIGERANT PRESSURE SENSOR
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
NBS00121
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 fan switch ON.
3.
Check voltage between ECM terminal 70 and ground with CON-
SULT-II or tester.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 2.
2.
CHECK GROUND CONNECTIONS
1.
Turn A/C switch and blower fan switch OFF.
2.
Stop engine.
3.
Turn ignition switch OFF.
4.
Loosen and retighten two ground screws on the body. Refer to
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace ground connections.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
49
W/L
Sensor power supply
(Refrigerant pressure sen-
sor)
[Ignition switch: ON]
Approximately 5V
67
B/W
Sensor ground
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 0V
70
R/B
Refrigerant pressure sensor
[Engine is running]
●
Warm-up condition
●
Both A/C switch and blower fan switch: ON
(Compressor operates.)
1.0 - 4.0V
Voltage: 1.0 - 4.0V
PBIB1188E
PBIB2192E
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