Celica L4-2366cc 22R (1983)
Blower Motor Relay: Testing and Inspection
1. Inspect the power source line between terminal 3 and body ground of the wiring connector.
2. Inspect the ground connection between terminal 2 and body ground of the wiring connector.
3. Inspect relay continuity.
a. Check that there is continuity between terminals 1 and 3.
b. Check that there is continuity between terminals 2 and 4.
c. Check that there is no continuity between terminals 4 and 5.
4. Inspect relay operation.
a. Apply the battery voltage across terminals 1 and 3.
b. Check that there is continuity between terminals 4 and 5.
c. Check that there is no continuity between terminals 2 and 4.
If there is no relay operation, replace the relay.
