Celica 2WD L4-2.0L (3S-FE) (1988)
Compressor Clutch Relay: Testing and Inspection
Relay Schematic
CONTINUITY
Relay Test-Continuity
1. Check that there is continuity between terminals 1 and 2.
2. Check that there is no continuity between terminals 3 and 4.
3. Check that there is no continuity between terminals 1 and 4.
4. If not as specified, replace relay.
Relay Test-Power On
OPERATION
1. Apply battery voltage to terminals 1 and 2.
2. Check that there is continuity between terminals 3 and 4.
3. If not as specified, replace relay.