Toyota Camry Manual page 54

AC–54
AIR CONDITIONING SYSTEM
AIR SWITCHING VALVE (ASV)
VACUUM HOSE CIRCUIT (5S–FE ENGINE
MODEL)
ASV INSPECTION (5S–FE ENGINE
MODEL)
1. CHECK VACUUM CIRCUIT CONTINUITY IN ASV BY
BLOWING AIR INTO PIPES
(a) Connect the ASV terminals to the battery terminals as
illustrated.
(b) Blow into pipe "A" and' check that air comes out of
pipe "B".
(c) Disconnect the battery.
(b) Blow into pipe "A" and check that air does not come
out of pipe "B".
If a problem is bound, replace the ASV.
2. CHECK FOR SHORT CIRCUIT
Using an ohmmeter, check that there is no continuity
between each terminal and the ASV.
If there is continuity, replace the ASV.
3. CHECK FOR OPEN CIRCUIT
Using an ohmmeter, measure the resistance between
the 2 terminals.
Resistance:
If resistance value is not as specified, replace the ASV.
– AIR SWITCHING VALVE (ASV)
30 – 34 0 at 20° C (68° F)