FICD SOLENOID VALVE INSPECTION [WLT-1, WLT-2]

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System Inspection

1.  Carry out the “FICD System Inspection”. (See ENGINE CONTROL SYSTEM OPERATION INSPECTION [WLT-1, WLT-2].)

2.  If not as specified, perform the further inspection for the FICD solenoid valve No.1, No.2.

Airflow Inspection

Note

•  Perform the following test only when directed.

1.  Disconnect the negative battery cable.

2.  Remove the FICD solenoid valve No.1, No.2. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [WLT-1, WLT-2].)

3.  Inspect for airflow between ports of the solenoid valve.

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4.  If not as specified, replace the faulty FICD solenoid valve.

•  If as specified but “System Inspection” is failed, inspect following:

Vacuum hose improper routing, kinks or leakage.

Open circuit

•  Ground circuit (FICD solenoid valve No.1 connector terminal B and PCM connector terminal C)

•  Ground circuit (FICD solenoid valve No.2 connector terminal B and PCM connector terminal P)

•  Power circuit (FICD solenoid valve No.1 connector terminal A and engine switch connector terminal IG1)

•  Power circuit (FICD solenoid valve No.2 connector terminal A and engine switch connector terminal IG1)

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Short circuit

•  Ground circuit (FICD solenoid valve No.1 connector terminal B and PCM connector terminal C)

•  Ground circuit (FICD solenoid valve No.2 connector terminal B and PCM connector terminal P)

•  Power circuit (FICD solenoid valve No.1 connector terminal A and engine switch connector terminal IG1 to ground)

•  Power circuit (FICD solenoid valve No.2 connector terminal A and engine switch connector terminal IG1 to ground)

5.  Repair or replace faulty areas.

6.  Install the FICD solenoid valve No.1, No.2.

7.  Reconnect the negative battery cable.