Prius L4-1.5L (1NZ-FXE) (Hybrid) (2003)
1. Using an ohmmeter, check that continuity exists between terminals 1 and 2.
If no continuity exists, replace the relay.
2. Check that no continuity exists between terminals 3 and 5.
If continuity exists, replace the relay.
d. Inspect the No. 3 cooling fan relay operation.
1. Apply battery voltage across terminals 1 and 2.
2. Using an ohmmeter, check that continuity exists between terminals 3 and 5.
If no continuity exists, replace the relay.
e. Reinstall the No. 3 cooling fan relay.
f.
Reinstall the relay box cover.