2. Remove the plug from the A/C line service valves.
3. Install the pressure gauge block.
a) Close both valves of the pressure gauge block.
b) Connect the pressure gauge block hoses to the service valves.
c) Open both valves of the pressure gauge block.
d) Press the valve core located on the side of the gauge block and release the refrigerant from the air conditioning system.
(The original is published on the website: TOYOTAMAN.ru)
Note: Below are drawings with diagrams of the installation of the pressure gauge block on cars with different engines and the places where the pressure gauge block hoses are connected to the service valves.
