The heater, ignition and windows do not work, everythinv elae does, what relay could be at fault.
Check all your fuses under dash and hood. Relays should be near or in the main fuse panel under hood or near the firewall and a few under dash and heater has a resistor on its case. Can interchange relays out to see if any of item start to work to figure out if one is bad or use a relay tester, Amazon sells these at a fair price.
That select it really sounds like a main fuse, most likely in the power distribution box under the hood.
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