C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

1989 Electronic AC Broken?

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Old Jul 9, 2020 | 10:45 PM
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Default 1989 Electronic AC Broken?

Hello! I recently purchased a 1989 C4 Corvette and have been bumping the issues out one by one. This one has me completely stumped. The AC control is glitched out in some way. All the lights are on and won't turn off. Not even when the car is off. No AC blows and the buttons do nothing. When I plug the AC in the engine starts running rough as well but I think that may be a different issue all together as it's pretty intermittent. Any clues?

AC Controller
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Old Jul 9, 2020 | 11:11 PM
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Looks like it's stuck in test mode (everything on). There are many issues with the aging C68 including internal connection problems. Batee.com has a good write-up on them and also does service.
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