Air Conditioning problem
1989 Chevy Truck V8 Two Wheel Drive Automatic 123000 miles
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Lights on control module will not come on. Press the A/C button, nothing happens. Replaced module, still no lights. Put module on other truck and it works fine. A/C fuse to module OK. There is 12Vdc to red wire going to module. Found A/C relay, interchanged to simuliar relay, no change.