Airflow Inspection
1. Remove the vacuum hose..
2. Blow air into the vacuum hose using your mouth from the vacuum pump side and verify that the air flows to the intake manifold side, then blow air from the intake manifold side and verify that the air does not flow to the vacuum pump side.

If there is any malfunction in the check valve, replace it with the vacuum hose as a single unit..
Air Bypass Valve Inspection [Mzr 2.3 Disi Turbo]
Compression Inspection [Mzr 2.0, Mzr 2.5]Rear Door Speaker Inspection
1. Disconnect the negative battery cable..
2. Remove the rear door trim..
3. Remove the rear door speaker..
4. Verify the resistance between the rear door speaker terminals.
If not within the specification, replace the rear door speaker.
Resistance
Without Bose ...
Voice Recognition Learning
Function (Speaker Enrollment)
(Type A)
The voice recognition learning function enables voice recognition appropriate
to the characteristics of the user's voice. If the recognition of the voice
input commands to the system is not adequate, this function can largely improve
the system's voice recognition of the user. If your voice ca ...
Rear Drain Hose Installation
CAUTION:
If the rear drain hose is pinched or bent anywhere, the water in the hose
may not discharge and enter the inside of the vehicle. During and after installation
of the trims and the headliner, always make sure there is no interference with
the rear drain hose. Fix any problem ...