Variable Induction Position Sensor: Testing and Inspection

VARIABLE TUMBLE SHUTTER VALVE SWITCH INSPECTION [L3]

NOTE: Perform the following inspection only when directed.

Voltage Inspection

1. Turn the ignition switch to 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.
- If not as specified, perform the "Circuit Open/ Short Inspection".
- If there is no open or short circuit, replace the intake manifold.

Variable Tumble Shutter Valve Switch Output Voltage:

Variable tumble shutter valve switch output voltage

Circuit Open/Short Inspection




1. Disconnect the PCM connector.
2. Inspect the following harnesses for open or short circuit. (Continuity inspection)

Open circuit
- If there is no continuity, there is an open circuit. Repair or replace the harness.
- Variable tumble shutter valve switch terminal A and PCM terminal 2AU
- Variable tumble shutter valve switch terminal B and PCM terminal 2AY
- Variable tumble shutter valve switch terminal C and PCM terminal 2AE

Short circuit
- If there is continuity, there is a short circuit. Repair or replace the harness.
- Variable tumble shutter valve switch terminal A and power supply
- Variable tumble shutter valve switch terminal A and body GND
- Variable tumble shutter valve switch terminal B and power supply
- Variable tumble shutter valve switch terminal C and power supply
- Variable tumble shutter valve switch terminal C and body GND