Nissan Frontier D22. Manual - part 364

IACV-FICD SOLENOID VALVE

EC-559

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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 

MTC-22, "TROUBLE DIAGNOSIS"

 .

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

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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

Perform 

EC-120, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

 .

>> INSPECTION END.

SEF231V

SEF097K