Corolla S Sedan L4-1.8L (1ZZ-FE) (2002)
Radiator Cooling Fan Motor Relay: Testing and Inspection
Cooling Fan Relay
No. 1 Cooling Fan Relay
INSPECTION
1. INSPECT NO. 1 COOLING FAN RELAY
a. Remove the relay box cover.
b. Remove the No. 1 cooling fan relay (Marking: FAN NO. 1).
c. Inspect the No. 1 cooling fan relay continuity.
1) Using an ohmmeter, check that there is continuity between terminals 1 and 2. If there is no continuity, replace the relay.
2) Check that there is continuity between terminals 3 and 4.
If there is no continuity, replace the relay.
d. Inspect the No. 1 cooling fan relay operation.
1) Apply battery positive voltage across terminals 1 and 2.
2) Using an ohmmeter, check that there is no continuity between terminals 3 and 4.
If there is continuity, replace the relay.
e. Reinstall the No. 1 cooling fan relay.
f.
Reinstall the relay box cover.
2. W/ A/C:
INSPECT NO. 2 COOLING FAN RELAY
a. Remove the relay box cover.