ACIS Vacuum Tank

WARNING: This page is about a different car, the 1995 Lexus SC 300. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect vacuum hoses from vacuum tank. See Figure. Replace vacuum tank if it does not operate as follows.

Blow through port "B". See Fig 2. Air comes out of port "A".
Blow through port "A". Air does NOT come out of port "B".
Plug port "B". At port "A", apply 16 in. Hg. Vacuum holds for at least one minute.

Fig 1: Identifying Ports On ACIS Vacuum Switching Valve (VSV)

Fig 2: Identifying Ports On ACIS Vacuum Tank