7 blown fuses and counting
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=99620
Printed Date: May 02, 2024 at 5:19 AM
Topic: 7 blown fuses and counting
Posted By: 15_amp_confused
Subject: 7 blown fuses and counting
Date Posted: December 03, 2007 at 12:55 PM
Vehicle: 1990 Jeep Cherokee Deck: Pioneer Problem: Thought I would surpirise my gf for Xmas by replacing her crappy old deck with a new shiny one. A previous owner has cut out the wiring harness in the dash to accomodate the old crappy deck. I started by disconnecting the battery, identifying/connecting the constant & switched power, connecting the ground, then reconnecting the battery to see if it works before tackling the speaker wires. Each time I reconnect the battery, one of three fuses blow; "Dome" - which I assume if the switched power circuit, "Radio" - I assume is the constant, or the little fuse on the deck itself. What am I doing wrong?
Replies:
Posted By: haemphyst
Date Posted: December 03, 2007 at 1:21 PM
Check here...
Sounds to me like you don't have all of the wires connected correctly. Stop now, until you correct everything, or your "new shiny" is likely to become a "shiny smokey". ------------- It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
Posted By: DYohn
Date Posted: December 03, 2007 at 1:57 PM
"7 blown fuses and counting"?!??!? What, do you think you'll just keep replacing them until you find one that doesn't blow? Geez. ANYTIME a fuse blows it's because something is wrong. You obviously do not have the wiring connected correctly, STOP, and either figure it out properly or GET SOME HELP. ------------- Support the12volt.com
Posted By: the12volt
Date Posted: December 03, 2007 at 2:14 PM
Posted By: 15_amp_confused
Date Posted: December 03, 2007 at 2:33 PM
Thank you for your replies. Is it possible the fuses were blowing because I hadnt yet connected the speaker wires? Also, when I pulled out the old deck, there was this apparatus which I've never seen before: [URL=https://imageshack.us][IMG]https://img235.imageshack.us/img235/901/gggul8.png[/IMG][/URL] Is this necessary?
Posted By: i am an idiot
Date Posted: December 03, 2007 at 2:34 PM
Your radio has a problem. Stop putting fuses in. Get your radio checked out.
Posted By: DYohn
Date Posted: December 03, 2007 at 2:39 PM
No, it has nothing to do with speaker wires, it has to do with either he radio is bad or you are not connecting it properly. The device in your image is a filter. If one is required for your new radio it will have one as part of the wiring harness. Follow the instructions in the link supplied by the12volt, and if this is how your system is connected it is defective. ------------- Support the12volt.com
Posted By: jfinks
Date Posted: December 03, 2007 at 11:41 PM
Just a though...and I could be wrong but you said your dome light fuse keeps blowing. Make sure you have not use an illumination lead as your switch power. Some of these go to ground depending on where the key is. this can cause a dead short and blow fuses. Point is something is very wrong and it is time to start over or get knownledgable help!.
Posted By: KPierson
Date Posted: December 04, 2007 at 12:42 PM
The dome light is your constant 12vdc wire (because dome lights work when the igniton is off) The radio is your switched power lead. If you have access to a volt meter recheck all the wiring. If you don't have a volt meter then I would suggest taking it to someone who has the right tools for the job. If you really want to fix it yourself though, wihtout the proper tools What I would do, is remove the radio from the vehicle and connect it directly to the battery of the vehicle THROUGH the fuses in the wiring harness. If there are no fuses in the wiring harness then use a 5A fuse on the constant wire and a 10A fuse on the switched wire. If you pop either fuse at that point then you know the radio is bad. If the radio comes on then you know you've got it wired wrong. Under NO circumstances should you connect the radio directly to the battery with no inline fuses. You also need to make sure the metal case on the radio doesn't come anywhere near the positive terminal on the battery. On second thought, unless you know what you're doing I wouldn't do what i explained, it could cause major damage to the car or radio, and possible even hurt you if you arn't careful. ------------- Kevin Pierson
Posted By: 15_amp_confused
Date Posted: December 04, 2007 at 2:16 PM
Thanks for all the advice. I exchanged the deck for a new one, and installed it easily. One minor hiccup though. I think i may have crossed the Dimmer and Illumination wires. The light which light up the dash console (speedometer, fuel gauge, etc) no longer work. I also noticed the clock, which normally dims when you turn on the headlights, turns off completely when I turn on the headlights now. I have the illumination from the deck hooked up to the illumination wire in the truck (at least according to the wiring diagram)....would connecting it to the Dimmer wire remedy this?
Posted By: 15_amp_confused
Date Posted: December 05, 2007 at 2:08 PM
Recently installed a troublesome deck (thanks to these forums) but I ran into another hiccup.... The lights which light up the dash console (speedometer, fuel gauge, etc) no longer work. I also noticed the clock, which normally dims when you turn on the headlights, turns off completely when I turn on the headlights now. There was only a wire from the deck labelled Illumination, but none for Dimmer, so the Dimmer wire in the vehicle isnt presently connected to anything. I have the illumination from the deck hooked up to the illumination wire in the truck (at least according to the wiring diagram)....would connecting it to the Dimmer wire remedy this?
Posted By: jlman
Date Posted: December 05, 2007 at 4:00 PM
no the dimmer wire should not be used unless your radio has this feature bc the dimmer wire should be ac voltage not dc voltage like the illumination wire is
-------------
just wait till the bass drops
Posted By: the12volt
Date Posted: December 05, 2007 at 4:27 PM
jlman] wrote:
o the dimmer wire should not be used unless your radio has this feature bc the dimmer wire should be ac voltage not dc voltage like the illumination wire is
The dimmer wire is not AC. It is DC. 15_amp_confused wrote:
The lights which light up the dash console (speedometer, fuel gauge, etc) no longer work. I also noticed the clock, which normally dims when you turn on the headlights, turns off completely when I turn on the headlights now. There was only a wire from the deck labelled Illumination, but none for Dimmer, so the Dimmer wire in the vehicle isnt presently connected to anything. I have the illumination from the deck hooked up to the illumination wire in the truck (at least according to the wiring diagram)....would connecting it to the Dimmer wire remedy this?
The illumination wire of your head unit should be connected to a lead that only shows 12V+ when the parking/dash lights are on and should not be connected to the vehicle's dimmer wire. -------------  the12volt • Support the12volt.com
Posted By: i am an idiot
Date Posted: December 06, 2007 at 3:31 AM
Have you checked your taillights? It sounds to me that you may have connected the ground wire of your radio to the Illumination wire of the vehicle. You probably have a blown fuse. Sometimes there is a seperate fuse for the instrument cluster and sometimes it is the taillight fuse. Please check your taillights before driving at night.
Posted By: dragon51
Date Posted: December 06, 2007 at 8:07 PM
Sounds like you need to stop while your still ahead and take to a shop to fix what you have messed up befor you really do some damage.
Posted By: StealthEs
Date Posted: December 07, 2007 at 1:05 PM
dragon51 wrote:
Sounds like you need to stop while your still ahead and take to a shop to fix what you have messed up befor you really do some damage.
You should listen to him, quite while your ahead. You dontt want to end up shorting out a module in the car. ------------- Cris
Posted By: 15_amp_confused
Date Posted: December 12, 2007 at 12:19 PM
StealthEs wrote:
dragon51 wrote:
Sounds like you need to stop while your still ahead and take to a shop to fix what you have messed up befor you really do some damage.
You should listen to him, quite while your ahead. You dontt want to end up shorting out a module in the car.
If you dont know the answer, feel free to ignore this post. For those who provided help, thank you once again. I havent gone back in there to attempt to fix the problem yet, but Ill keep ya'll posted if I am unsuccessful :)
|