Perform the following inspection only when directed.
1. Turn the ignition switch to the ON position (Engine off).
2. Verify that the PCM terminal 2AE voltage is as shown in the following table when the variable tumble shutter valve actuator rod is depressed and released by hand.
Variable tumble shutter valve switch output voltage
If not as specified, perform the “Circuit Open/Short Inspection”.
If there is no open or short circuit, replace the intake manifold. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [LF].)
PCM terminal 2AE
Released (Open position)
Depressed (Closed position)
1. Disconnect the PCM connector.
2. Inspect the following harness for an open or short wiring. (Continuity inspection)
If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
Variable tumble shutter valve switch terminal A and PCM terminal 2AE
Variable tumble shutter valve switch terminal B and body ground
If there is continuity, there is a short circuit. Repair or replace the wiring harness.
Variable tumble shutter valve switch terminal A and body ground
Variable tumble shutter valve switch terminal B and power supply