HEADUNIT HELP!!!

Stereo installs and the music that drives them
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MR. cino
Posts: 12
Joined: Wed Apr 27, 2011 9:10 am
Location: Western Sydney

Hey guys, i got some serious problems with my headunit and Im completely stumped!!

Specs:
Pioneer headunit - connected to car using wiring harness
Clarion Amp 1 channel
12" Clarion sub

The amp only drives the sub and im running stock factory speakers off the headunit

Problem:

I have no power in my head unit at all. Ive checked continuity along the entire power wire at every connection point and i got a positive reading. Ive checked the voltage running from the battery all the way down to the headunit connecter and im getting a perfect 12v reading. Ive also checked the continuity on my ground wire and its fine.

Just in case i checked my fuse (which is only for the amp/sub) and power running to my boot (amp/sub) and that was fine too.

Took headunit back to the shop, they connected it up there and it turned on perfectly.

I cant find any reason why my headunit which worked fine before will suddenly stop now.

Any help appreciated, im desperate!! ](*,)
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Squirt
Posts: 951
Joined: Fri Dec 24, 2010 9:04 pm
Location: Central Coast NSW

Get a multimeter onto the accessory line, see if you're getting power from it.
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Gonz
Posts: 464
Joined: Tue Sep 28, 2010 5:12 pm
Location: Dubbo Australia.

Check your joiners including solder joints. One of then could be high resistance. It will show 12v on the multimeter, but due to resistance in the joint wont carry any current to power the head unit.
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Fyrestorm
Posts: 779
Joined: Thu Oct 27, 2011 8:36 pm
Location: Parramatta NSW

this is going to sound a little weird, but check the fuse that's got your lights on it. when i blew my stereo thats the one that went kaput.
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Squirt
Posts: 951
Joined: Fri Dec 24, 2010 9:04 pm
Location: Central Coast NSW

^this also
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MR. cino
Posts: 12
Joined: Wed Apr 27, 2011 9:10 am
Location: Western Sydney

Gonz wrote:Check your joiners including solder joints. One of then could be high resistance. It will show 12v on the multimeter, but due to resistance in the joint wont carry any current to power the head unit.
it worked fine before, it just randomly stopped working one day while i was driving. And a few weeks before that it was messing up also. Whenever id plug in my usb or aux, the whole thing would shutdown and start up again..weird
Fyrestorm wrote:this is going to sound a little weird, but check the fuse that's got your lights on it. when i blew my stereo thats the one that went kaput.
im pretty noob at this so i dont really know what that means. the only fuse i installed was the one for the amp. I didnt come across any other fuse during my installation other than the one on the headunit itself
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Fyrestorm
Posts: 779
Joined: Thu Oct 27, 2011 8:36 pm
Location: Parramatta NSW

look in the footwell on the drivers side, tucked up a little towards the kickpanel is the fusebox for ALL the main fuses (lights, accessory power, heater, AC, airbags, etc.) will be there. check those ones. most likely it'll be a 10A blade fuse thats blown.
97' Cino 5Dr Project. Status: Gone.
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MR. cino
Posts: 12
Joined: Wed Apr 27, 2011 9:10 am
Location: Western Sydney

It was one of the fuses. The accessory fuse had blown.

Thanks for the help guys! :D
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