Van has both front & rear but no heater air function works. Blower motor relay is my next step but I don't know where it is. Also air bag light seemed to first appear when air control failed ot function. Rear defrost also does not work now. Any ideas or location of relay. I know where relays are in passenger & engine compartment but don't know which one.

 

Hi,

I have the same exact problem with neither the front or rear blowers working. The relay, blower switch, blower motor all seem good. The blower motor resistor seems a little rusted but I think it works.

Also having the problem with the rear electric defrost. Neither AC nor heat work since the blower does not come on.

What might be the problem.

 

Multiple failures might suggest a blown fuse but I am just thinking out loud here.