1. Remove the vacuum hose..
2. Verify that air can be blown from the power brake unit side of the vacuum hose towards the vacuum pump side, and that air cannot be blown in the opposite direction.

If there is any malfunction of the inner check valve, replace it together with the vacuum hose as a single unit.
Vacuum Hose Removal/Installation
Vacuum Pump InspectionFront Sash Molding Removal
WARNING:
Using a utility knife with bare hands can cause injury. Always wear gloves
when using a utility knife.
1. Using a utility knife, carefully remove the double-sided adhesive tape in
the locations shown below.
CAUTION:
When removing the double-sided adhesive tape, ...
PID/Data Monitor Inspection [Front Body Control Module (Fbcm)]
1. Connect the M-MDS to the DLC-2.
2. After the vehicle is identified, select the following items from the initialization
screen of the M-MDS.
a. Select “DataLogger”.
b. Select “Modules”.
c. Select “F_BCM”.
3. Select the applicable PID from the PID table.
4. Verify the PID ...
Airflow Mode Control [Full Auto Air Conditioner]
Purpose
The airflow mode control changes the airflow mode according to the vehicle
environment.
Function
The airflow mode control drives the airflow mode actuator according to the
mode switch, defroster switch, and the vehicle environment and switches the
position of the ...