Camry Sedan L4-2.0L (3S-FE) (1987)
Vacuum Solenoid Valve HVAC: Testing and Inspection
INSPECTION
1. Remove Vacuum Switching Valve (VSV).
2. Check vacuum circuit continuity in VSV by blowing air into pipe.
a. Connect the VSV terminals to the battery terminals as shown.
b. Blow into pipe "A", and check that air comes out of pipe "B" but does not come out of filter "C".
c. Disconnect the battery.
d. Blow into pipe "A" and check that air comes out of filter "C" but does not come out of pipe "B".
If a problem is found, replace the VSV.
3. Check for short circuit. Using an ohmmeter, check that there is no continuity between each terminal and the VSV body.
If a short circuit is found, repair or replace the VSV.