1. Remove the clamps and vacuum hose.
2. Apply both suction and pressure to the engine-side hose, and verify that air blows only toward that side.

Air bleeding
Brake pedal inspectionMazda 6 Service Manual: Idle air control (iac) valve inspection
Note
Perform the following inspection only when directed.
Operation Test
Carry out the Idle Air Control Inspection. (See Idle Air Control System
Inspection.)
If not as specified, perform the further inspection for the IAC valve.
Resistance Inspection
1. Disconnect the negative batt ...
Mazda 6 Service Manual: Rear door trim removal/installation
1. Disconnect the negative battery cable if equipped with power window
system.
2. Remove the regulator handle if equipped.
3. Open the cap using a small screwdriver, then remove the screw.
4. Remove the inner handle cover.
5. Remove the cover, then remove screw.
6. Disengage clips A from th ...