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 InspectionBrake/Taillight Bulb Removal/Installation
1. Disconnect the negative battery cable..
2. Insert a tape-wrapped flathead screwdriver into the service hole in the position
shown in the figure.
3. Move the flathead screwdriver in the direction of the arrow (1) shown in the
figure, pull out the service hole cover, and detach the serv ...
Electric Power Steering System
Outline
A column assist type EPS has been adopted for all models.
EPS provides smooth handling from low to high speeds as a result of the excellent
steering feel provided by the electronic control and the vehicle-speed responsive
control.
EPS does not require a power ste ...
Engine Oil Solenoid Valve Inspection
Engine Oil Solenoid Valve Operation Inspection
1. Remove the engine oil solenoid valve..
2. Verify that the battery is fully charged.
3. Connect the battery to the engine oil solenoid valve connector (2 terminals)
as shown in the figure.
4. Verify that there is an operation sound from t ...