Having problems with your 2005 Dodge Grand Caravan ?

What tells the fans to run when the ac is on?

Posted / edited by AnonymousUser on : 20-11-2017

Answers :

Well the short answer is the computer.
The computer gets a signal from the high and low pressure switches, and when freon pressure reaches 200psi on the high side the computer grounds the fan relay.
Repair Help & Product Troubleshooting for 2005 Dodge Grand Caravan

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