Mazda 3 Service Manual: Variable Tumble Shutter Valve Switch Inspection [Mzr 2.0, Mzr 2.5]
The variable tumble shutter valve switch cannot be removed as a single unit. When replacing the variable tumble shutter valve switch, replace it together with the intake manifold as a single unit.
1. Connect the M-MDS to the DLC–2.
2. Switch the ignition to ON.
3. Verify that the variable tumble shutter valve switch output voltage (PID: IMRC_POS) is within the specification..
If not as specified, replace the intake manifold..
Wheel Hub Component Inspection
Wheel Bearing Excessive Play Inspection 1. Remove the brake caliper component and disc plate.. 2. Install the magnetic base and dial gauge as shown in the figure and measure the wheel bearing axial excessive play.