dodge Workshop Repair Guides

Dodge Workshop Service and Repair Manuals

Radiator Cooling Fan Temperature Sensor / Switch|Testing and Inspection > < Diagram Information and Instructions|Page 1261
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Radiator Cooling Fan Temperature Sensor / Switch: Description and Operation

California Only

Radiator Fan Motor Circuit

PURPOSE

Radiator fan operation is monitored by the ECM, to determine the load on the engine under idle conditions. 

OPERATION

The ECM monitors the voltage from the radiator fan motor relay. If system voltage is not present, (fan operating) The ECM operates the IAC
motor to maintain correct idle RPM.

Radiator Cooling Fan Temperature Sensor / Switch|Testing and Inspection > < Diagram Information and Instructions|Page 1261