Wipers, radio and the heater control wont work

[street_legal?]

My wipers flat out wont work. The radio is on but nothing comes out..
The heater control wont work also.. cold air nothing else. No, not the t stat or core... I think its the flapper.. how do they work in these trucks? electric or vacuum? all the other vac ran stuff works like floor defrost sec..

[silverF250]

Have you checked fuses?

[street_legal?]

Ya, I checked them and didnt find any blown or questionable contacts

[silverF250]

Did it start doing this after a rain storm?

[street_legal?]

No, I bought the truck and didn't try them. nor did i try the heat or the horn or the radio LOL...

[swamp_ratt]

our 2000 powerstroke ambulance is doing the same thing, but it has a aftermarket radio in it and it still works fine. dont know whats up with the wipers and heat/ a/c. let me know if you get figured out

[street_legal?]

Sure... just stay tuned...

[storkerlovr]

its all electric. no vacuum. seams like fuses though? if its not a fuse that you will have to start taking stuff apart and checking with a voltmeter. you will find your problem one way of another. goodluck

[silverF250]

Sounds like a GEM module to me.

There are connections right behind the radio on the firewall I don't know what actually plugs in there, though your problem could be in that part of the harness. BTW it's a pain to get to it.

[street_legal?]

Originally Posted by silverF250

Sounds like a GEM module to me.

There are connections right behind the radio on the firewall I don't know what actually plugs in there, though your problem could be in that part of the harness. BTW it's a pain to get to it.

I see, Your offering to come fix it for me... LOL..

Im gonna start playing with the wire and see what happens