Relay Test (Sonata)
Two engine cooling fan relays are used, a low speed and a high speed. See WIRING DIAGRAMS . High speed relay is located in underhood fuse/relay box. Low speed relay is located in right front corner of engine compartment. When battery voltage and ground are applied to terminals "S1" and "S2" of the cooling fan relay, continuity should exist across terminals "L" and "B". See Fig 1 .