Question about 1991 Honda Accord

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A/c not working .hasplenty of freon. light on control panel does not light up. compressor not turning"on". power at relays.

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Have you checked all the fuses under hood in black box? relays may be good but theres no power or that light should come on. if all your fuses are good then may be that the heater control panels bad. i would make sure that the compressors plugged up, check all those fuses, then go towards a bad heater control panel.. hope this helps!!

Posted on Aug 24, 2010


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first try swapping out the relay. The relay is usually in the box under the hood. If that doesn't work, interrogate the relay socket with a test light to see if the ground signal is coming in from the computer. To do that, connect your test light clip to battery positive and probe the relay socket. If you don't get a bright light with the car running and the A/C turned on, the problem is with the control system. If you have the automatic climate controls, the problem may be in the BCM. I have pasted diagrams for both manual and automatic system below.




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Air compressor will not start, seems like a electrical problem, check fuses under hood and relay

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Probably needs to have freon added. If it's low, compressor won't kick in, and freezing up is a sign of low freon also.

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