A few weeks ago, the "e-brake" light began lighting periodically when driving. When this is lighted, the AC no longer blows cold. Fan works, but no cold air. Brake fluid level is OK. No issue with freon, as the AC later begins blowing cold when the e-brake light goes back off. This is now happening with increasing frequency. Also the airbag light goes on an off with it soemtimes.

Any ideas are greatly appreciated..... its a 2007 Mazda3

Also my stereo display shows nothing. Been like that for a while. IDK if that has anything to do with it.

 

Well i check the PBJ (pulled completly out) and all the connectors and also checked everything else. I didnt notice any corrosion. Now it goes like this. At random times in this order. The CD player display goes out and shows nothing but the time. Then the e-brake light comes on and the A/C goes out then seconds later the airbag light comes on. Then at its choosing they go off in reverse order with A/C coming back on after the e-brake light goes off. And most off the time the display stays off. so it makes wanna think it would be were all though met but I am not sure were to start. Ideas?