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Old 08-10-2013, 01:52 AM   #1
RickyOG90
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Exclamation A/C issue and aftermarket stereo problem

wow so for some reason whenever i try to turn on my a/c in my car, the "A/C" button light on the HVAC controls just blinks away, sometimes staying solid but usually always blinking if i have the air on, and if I press on the recirculating air button aka Max A/C, it will blink as well and then turn off. What could this problem be? I'm thinking maybe its a fuse?

And another issue, I replaced my aftermarket stereo for a new one and for some reason, while I have my car running, I can turn the key back to turn off the car and pull the key out and yet my car will keep running, BUT if I press and hold the Off button on my stereo and turn it off, the moment the stereo turns off, my car will turn off as well. What could this issue be? I've never had this issue before and it puzzles me.


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Old 08-10-2013, 09:48 AM   #2
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As far as the Radio goes; sounds like you wired the Constant to the wrong wire. (i.e. yellow/red instead of yellow/yellow red/red) . I could be wrong. but not sure if that would explain the car on/off issue. Weird.
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Old 08-10-2013, 10:14 AM   #3
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If the car's wiring harness was cut into rather than finding a wiring harness adapter- then who knows. Sort of impossible to repair from a distance and not seeing anything.

At any rate a Ford Focus 2000 wiring manual is a necessity see E bay
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Old 08-10-2013, 12:34 PM   #4
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Nothing personal but you probably need someone else looking at this. Thinking a mere fuse can cause the a/c light blink says you don't know enough about auto electrical to do it alone. My guess is someone working on things has caused all of this. Once you get weird behavior like you post, there is literally no way that can be fixed over the net. Simply way too many unguessable things could've been done there.
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Old 08-10-2013, 01:20 PM   #5
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Originally Posted by amc49 View Post
Nothing personal but you probably need someone else looking at this. Thinking a mere fuse can cause the a/c light blink says you don't know enough about auto electrical to do it alone. My guess is someone working on things has caused all of this. Once you get weird behavior like you post, there is literally no way that can be fixed over the net. Simply way too many unguessable things could've been done there.
whoa now, I'm not a novice at electronics. the reason why I said maybe its a fuse because i did some research to see if others experienced the same issue, and there was one guy that had the exact same issue with his a/c and had figured out that his problem was fuse 58 was removed by accident, and when he replaced it, everything went back to nornal. So i checked that same fuse today to find that the fuse was blown. Plus I have not done anything relating to the hvac controls or any thing to affect this issue recently within the past 3 months as everything was fine 4 days ago. Just simply turned it on yesterday to experience this issue.
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Old 08-10-2013, 01:25 PM   #6
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Quote:
Originally Posted by mikeeshaq View Post
If the car's wiring harness was cut into rather than finding a wiring harness adapter- then who knows. Sort of impossible to repair from a distance and not seeing anything.

At any rate a Ford Focus 2000 wiring manual is a necessity see E bay
yea the previous owner had chosen to cut the stock harness off instead of using an adapter :/ but i installed 2 different headunits in the past 3 years and i upgraded to a new one 2 days ago and just reconnected the new connections to the same wires it was previously connected to so just puzzles me that its doing this when it didnt do it with the previous headunit
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Old 08-10-2013, 01:31 PM   #7
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Quote:
Originally Posted by Gadabout View Post
As far as the Radio goes; sounds like you wired the Constant to the wrong wire. (i.e. yellow/red instead of yellow/yellow red/red) . I could be wrong. but not sure if that would explain the car on/off issue. Weird.
i will check but I'm pretty certain I didnt, but who knows? its hot as hell in florida and I couldve made a tiny error and swapped the 2 without thinking lol
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Old 08-10-2013, 03:43 PM   #8
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Well the A/C works again! I replaced that fuse 58 and now the a/c button and recirculating air a/c button lights on the HVAC controls are now lit solid and works again so I'm glad that issue is gone finally
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Old 08-11-2013, 10:58 PM   #9
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OK, I figured out the stereo issue, and it wasnt me misconnecting the constant and switched connections, turns out i accidently connected the antenna wire to the switch wire as well. Welp, case closed. Thanks for those that helped out!
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