Variable Induction Position Sensor: Testing and Inspection

VARIABLE TUMBLE SHUTTER VALVE SWITCH INSPECTION [LF, L3]

NOTE:
- Perform the following inspection only when directed.

Voltage Inspection

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.











- 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





*1
California emission regulation applicable model
*2
Except for California emission regulation applicable model

Circuit Open/Short Inspection









1. Disconnect the PCM connector.

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

Open circuit

- 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 2AU*1, 2AR*2, 2W*3
- Variable tumble shutter valve switch terminal B and PCM terminal 2AY*1, 2P*2, 2AA*3
- 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 wiring harness.

- Variable tumble shutter valve switch terminal A and body ground
- 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 ground

*1
California emission regulation applicable model
*2
Except for California emission regulation applicable model with LF MTX, L3
*3
Except for California emission regulation applicable model with LF ATX