Pioneer Premier Headunit and amps stopped working! Please help.

[mpbojangles 10+ year member]

I've had a Pioneer Premier headunit that I bought about 2-3 years ago which was top of the line at the time. Its age might be the problem in itself but heres what happened. One day, the faceplate stopped folding down to reveal the LCD display, but everything still worked fine. About a month later, the headunit stopped working all together. It wouldnt turn on when the car was on. All of a sudden it came back on one day and everything was fine. All speakers were working. Few weeks later, the headunit was still working, but all of a sudden, the amps (JL 300x2 powering front components and a sub amp) would not power on. The only sound that I was getting was the unamped rear speakers. And now of course, the headunit won't even turn on.

I'm a little confused whether the problem is with the head unit, amps, or car electronics in general. I've checked all fuses that I know about (car fuse box, sub amp fuse) and checked general connections (into back of headunit, made sure component RCA's were connected properly).

Might it be a simple problem being the wiring harness to the headunit is just old? Any feedback is greatly appreciated. Thanks in advance.

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[OneKrazyKeebler 10+ year member]

What kind of car is this all in?

My obvious guess might be your ground somewhere. Check the ones that go from the battery to the chassis or the engine block. I had a problem with the remote grounding out and not putting out any sound to the speakers, but that doesn't sound like your problem.

I would almost say to go to harbor freight and get you a $10 DMM and start checkin everything you can find.

 

[RandyShaw 10+ year member]

I cant even think to comment this threat. That Avatar got me stuck.

 

[mpbojangles 10+ year member]

The car is a '98 Acura 2.3 CL. Thanks for the suggestion. I'll look into that. Anyone else?

 

[trd_camry 10+ year member]

same happen to me...i got last year premier p780mp. once in a while the unit wont eject my cd..sometime the control knob dont even work like it suppose to...My guess is that if you listen music through your pioneer HU for a long period of time..(like me) it'll get very hot and it will cause it to not to work proplery.