head unit question - Audio & Electronics Forum

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head unit question
Monday, March 14, 2011 8:34 PM
So I was putting in a head unit in my 03 ls cav. Now I don't exactly remember but I think I shocked the power which is the yellow nd orange wire on the antenna or I might of shocked the red wire on the antenna I can't remember but anyways my problem is the constant wont work everytime I turn off the car all my settings get reset nd its annoying any ideas of what I shud do or check to fix it???

Re: head unit question
Monday, March 14, 2011 8:39 PM
you should fix your grammars so people can understand what you are asking.


did you solder the wires or just tape them. you might have a loose connection in there
Re: head unit question
Monday, March 14, 2011 8:54 PM
I had them taped .....so u don't think no fuses are popped or anything
Re: head unit question
Tuesday, March 15, 2011 4:29 AM
you say you had them taped, but then you said you shocked them. so which is it. if they were taped up nothing should have happened. if they were sparks from a schock from them touching then it wasnt really taped up. when you work on audio unplug the battery. its simple. takes a minute to do and protects you in the event of stupidity.

are you sure your have your wires hooked up properly? not just securely but to the right wires?

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Re: head unit question
Tuesday, March 15, 2011 6:30 AM
I didn't have them taped wen I was working on it cuz I was just trying to plug it in to make sure everything' was working the right way nd then I shocked it pretty stupid I no ...and ever since that happens the check light came on with the little wrench I'm guessing the check engine light and also no fuses popped or anything
Re: head unit question
Tuesday, March 15, 2011 11:25 AM
Any ideas
Re: head unit question
Tuesday, March 15, 2011 11:37 AM
It's going to be the fuse. Have you checked the fuse?



Re: head unit question
Wednesday, March 16, 2011 4:44 AM
check all your fuses. if your check engine light came on. go to autozone and have the code read to see what it says. retrace all the wires.

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Re: head unit question
Wednesday, March 16, 2011 6:16 PM
I had the code read it said no codes found I also had the computer reset and the lights still on I also tried to do the manual reset wen I press the gas 3 times and that makes the service light go away but then it comes back on like 2 mins later so far I haven't seen any blown fuses
Re: head unit question
Tuesday, May 10, 2011 6:09 PM
Not sure if you got this fixed but I will give you my best guess. I'm pretty sure the light with the wrench is your service light not your check engine light. Usually indicates the the BCM sees a problem(Not the ECM hence the reason you were unable to pull any codes). I would definitely start with the fuses. Is there anything else in the car you've noticed stopped working the day you "shocked" the wire? Do you have access to a multimeter? I would start by checking the resistance across all of the fuses including the ones under the hood. What wiring harness did you use to hook up the stereo? with or without the door chime module? Hint if you used one that cost less that $40 you need to run a separate 12v switched(usually to the wiper circuit), as well as the 12v constant to the harness. Can you pull the radio out and take pictures of how you connected the harness? This may help us diagnose your problem.



Re: head unit question
Tuesday, May 10, 2011 9:29 PM
if u go to a real shop that has a descent scanner they can read the bcm code. My wrench light is on because i pulled the drl relay and there is a code in the bcm for the drl circuit.
We have a genesis scanner and if u select scan all dtc's it will scan all computers in the car and give u current and history codes. If u cant find out what u shorted it may be a good way to point u in the right direction.
most shops will scan ur codes for free.




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