Nissan Frontier D22. Instruction — part 364
IACV-FICD SOLENOID VALVE
EC-559
[KA24DE]
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EC
Wiring Diagram
UBS00DDM
BBWA1072E
EC-560
[KA24DE]
IACV-FICD SOLENOID VALVE
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.
*: Ambient air temperature above 10
°C (50°F) and in any mode except OFF.
Diagnostic Procedure
UBS00DDN
1.
CHECK OVERALL FUNCTION
1.
Start engine and warm it up to normal operating temperature.
2.
Check idle speed.
If NG, adjust idle speed.
3.
Push air conditioner switch ON and turn fan switch to 4-speed.
4.
Recheck idle speed.
OK or NG
OK
>> INSPECTION END.
NG
>> GO TO 2.
2.
CHECK AIR CONDITIONER FUNCTION
Check if air conditioner compressor functions normally.
OK or NG
OK
>> GO TO 3.
NG
>> Refer to
TER-
MINAL
NO.
WIRE
COLO
R
ITEM
CONDITION
DATA (DC Voltage)
12
P
Air conditioner relay
[Engine is running]
●
Both A/C switch and blower switch are ON*
Approximately 0V
[Engine is running]
●
A/C switch is OFF
BATTERY VOLTAGE
(11 - 14V)
800
±50 rpm
875 rpm or more
MEF634E
IACV-FICD SOLENOID VALVE
EC-561
[KA24DE]
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EC
3.
CHECK POWER SUPPLY
1.
Stop engine.
2.
Disconnect IACV-FICD solenoid valve harness connector.
3.
Start engine, then push A/C switch ON and turn fan switch to 4-
speed.
4.
Check voltage between terminal 2 and ground with CONSULT-II
or tester.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 4.
4.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness for open or short between IACV-FICD solenoid valve and harness connector F27
>> Repair open circuit, short to ground or short to power in harness or connectors.
5.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Check harness continuity between solenoid valve terminal 1 and body ground.
Refer to Wiring Diagram.
3.
Also check harness for short to power.
OK or NG
OK
>> GO TO 7.
NG
>> GO TO 6.
6.
DETECT MALFUNCTIONING PART
Check the harness for open or short between IACV-FICD solenoid valve and body ground.
>> Repair open circuit or short to power in harness or connectors.
SEF342V
Voltage
: Battery voltage
SEF133V
Continuity should exist.
EC-562
[KA24DE]
IACV-FICD SOLENOID VALVE
7.
CHECK IACV-FICD SOLENOID VALVE
Disconnect IACV-FICD solenoid valve harness connector.
●
Check for clicking sound when applying 12V direct current to ter-
minals.
●
Check plunger for seizing or sticking.
●
Check for broken spring.
OK or NG
OK
>> GO TO 8.
NG
>> Replace IACV-FICD solenoid valve.
8.
CHECK INTERMITTENT INCIDENT
EC-120, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
>> INSPECTION END.
SEF231V
SEF097K
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