VARIABLE TUMBLE SOLENOID VALVE INSPECTION[L3]

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1.  Remove the variable tumble solenoid valve. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION[L3].)

2.  Inspect airflow between the ports under the following conditions.

•  If not as specified, replace the variable tumble solenoid valve. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION[L3].)

•  If as specified, carry out the “Circuit Open/Short Inspection”.

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Circuit Open/Short Inspection

1.  Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION[L3].)

2.  Inspect the following wiring harness for an open or short circuit (Continuity check).

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Open circuit

•  If there is no continuity, the circuit is open. Repair or replace the wiring harness.

―  Variable tumble solenoid valve terminal A and main relay terminal A

―  Variable tumble solenoid valve terminal B and PCM terminal 2AI

Short circuit

•  If there is continuity, the circuit is shorted. Repair or replace the wiring harness.

―  Variable tumble solenoid valve terminal A and body ground

―  Variable tumble solenoid valve terminal B and power supply

―  Variable tumble solenoid valve terminal B and body ground