Corolla (EFI), Land Cruiser, MR2, Pickup (Turbo), 4Runner, Tercel Sedan & Van

Drain cooling system and remove BVSV. Cool BVSV to minimum temperature according to application using cool water. See BVSV SPECIFICATIONS table.
On all models except Tercel Sedan, apply air through top port of valve. Air should not exhaust through bottom port. Heat BVSV valve to maximum temperature according to application. See BVSV SPECIFICATIONS table. Apply air in top port. Air should exhaust through lower port. Replace assembly if defective.
On Tercel Sedan with M/T, a 3 port BVSV is used while a 2 port is used on A/T applications. Cool BVSV to minimum temperature according to application using cool water. See BVSV SPECIFICATIONS table.
On A/T models, apply air to top port of valve. Air should exhaust from lower port. On M/T models, apply air to the center port. Air should exhaust from the upper and lower ports.
Heat BVSV valve to maximum temperature according to application. See BVSV SPECIFICATIONS table. On A/T models, apply air to top port. Air should not exhaust through lower port. On M/T models, apply air to the center port. Air should not exhaust through any port. Replace assembly if defective.