Radiator Fan Relay: Notes

All Models (Except Concorde, Dynasty, Fifth Avenue, Imperial,Intrepid, New Yorker & Vision With V6 Engines)

PCM controls radiator fan relay. Radiator fan relay will be energized during the following conditions:

• When A/C clutch is engaged.
• At vehicle speeds more than 40 MPH and if coolant temperature reaches 230°F (110°C). Fan relay will de-energize when coolant temperature reaches 220°F (104°C). When vehicle speed is less than 40 MPH, fan relay switches on at 210°F (99°C) and off at 199°F (93°C).
• Fan relay also prevents steaming, a condition where moisture evaporating from radiator core rises, giving the appearance of engine overheating. Fan relay will energize for about 3 minutes when ambient temperature is less than 60°F (16°C), with coolant temperature between 100°F (38°C) to 195°F (91°C), and when engine is at idle.