Radiator Fan Switch

On all except MR2, radiator fan switch is located in upper radiator hose coolant inlet on engine. On all except Camry V6 and MR2, switch has single wire. On MR2, switch has 2 wires and is located on radiator tank.
To test switch, remove switch from vehicle. Using ohmmeter, ensure continuity is correct between wire connector and switch body (or 2 switch terminals on MR2 and Camry V6). Switch may be gradually heated in water for testing. See RADIATOR FAN SWITCH CONTINUITY (EXCEPT CAMRY V6) table or RADIATOR FAN SWITCH CONTINUITY (CAMRY V6) table.

RADIATOR FAN SWITCH CONTINUITY (EXCEPT CAMRY V6) ⁽¹⁾

Model

No Continuity °F (°C)

Continuity °F (°C)

Camry 4-Cylinder

Above 199 (93)

Below 181 (83)

Celica, Corolla & MR2

Above 199 (93)

Below 181 (83)

Tercel

Above 192 (89)

Below 172 (78)

⁽¹⁾	As measured between between wire connector and switch body (or 2 switch terminals on MR2.

RADIATOR FAN SWITCH CONTINUITY (CAMRY V6)