Radiator Cooling Fan Motor Relay: Testing and Inspection

Chrysler does not provide symptom driven diagnostics for this component. Trouble Code P1491 concerns the cooling fan motor and relay. For this testing refer to Computers and Control Systems, Testing and Inspection/Trouble Code Diagnostics Charts Testing and Inspection

In addition, refer to the wiring diagrams at Powertrain Management, Diagrams, 8w30-5 Electrical Diagrams , and also, refer to Heating and Air Conditioning, Diagrams, Electrical 8w42-8 Electrical Diagrams