Wierd problem - with turn signal, AC Switch and Ligths Switch

[puyunet]

hey ppl i need some help with a weird problem. i got a 96 explorer, when i am on battery mode i turn on the ac and put the fan to high, in the dash it come on really dim the right turn signal and the high beans light, it only come when i put the fan on high. I went outside of the car and found that the head lamps and the right signal were dim. The other weird problem is when i start the car, i put the AC off and turn on the light switch, it does the same with the turn signal and the high bean. The only difference is that when the car is on battery mode and AC is off, i then switch on the headlights the problem don't appear. I check all fuse and they are ok, was thinking is the flash relay. any suggestion or idea was going on?

sry about my english

 

[Cobraguy]

I apologize, but I'm having difficulty understanding you. But this sounds like a feed back problem if I guess correctly at your problem. Feedback problems are almost always a ground problem.

 

[puyunet]

i check cable and didn't found anything out of order

 

[bobneu]

try cleaning and if necessary replacing the negative cable. It sounds as if the system is looking for ground. try attaching a wire to the body then attach it to the negative post on try it again

 

[Cobraguy]

If it's a ground, it won't be the one at the negative battery terminal. That won't cause this issue. It will be one of numerous body grounds in the vehicle. This can be a real pain to track down.