Air conditioner/heater/defroster not working

Tiny
BRNDNQNN
  • MEMBER
  • 1987 MAZDA B2200
  • 2.0L
  • 4 CYL
  • RWD
  • MANUAL
  • 260,000 MILES
So my air conditioner/heater/defroster nothing is blowing. The air conditioner switch is not even lighting up. Tried to see if it was a fuse because the switch is not lighting up no go. I found the heater core to be leaking all over my car so I am going to replace that, but something tells me that is not my only problem. Can you help? I need defroster because it is winter and rainy and I have none. Any help would be more then appreciated.
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Sunday, February 5th, 2017 AT 2:14 AM

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Tiny
HMAC300
  • EXPERT
I am assuming you have checked fuses and A/C relay as that powers control as well. There are also three fusible links that run off the battery check those as they may supply power as well. They should have battery voltage both sides. Also, check for weak ones that have maybe only a few strands connected. If no power to where arrows are check for a broken wire or bad ignition switch as that is where the power comes from. See picture.
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Sunday, February 5th, 2017 AT 8:50 AM

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