Hello !

My name is Kimberly and I need some help diagnosing an intermittent problem with my Grand Caravan heater fan. It is a 1999 and my heater fan would work and then stop but would be working again after my vehicle sat overnight. For the past 3 days it has not worked though and it is getting colder. Can you help me determine where to start looking for the problem?
Thank you very much!

 

Welcome Aboard kimberly65! Stay tuned - a Technician (or member) will jump in shortly to provide a possible solution. In the meantime, don't forget to browse Sub-Forums: Caravan for stuff related to your ride.

 

I too am having the same problem. I was told that it was a bad switch. I am going to replace it and see what happens

 

Welcome to DF

For both of our new members, I would guess the fan blower relay maybe the problem. You would need to remove the wiper cowl to replace it. I will move your post to the Minivan section/ Caravan.

 

Wiring diagrams are showing the front blower motor relay in the PDC. Has something changed?

 

I went ahead and replaced the relay and it worked. My heater fan works again. I also went ahead and replaced the blower fan fuse and relay and it all works. Thank you very much for the help.