Question about Pioneer GM-232 Car Audio Amplifier

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Cant get the red led light green again

Over christmas break i wired an amp with one sub in my car, worked great for the month i was home. I went back to school in january without my car and came back 3 months later and the subs dont work. The led light is red, I've checked preamp issues, (fuses, pinched wires, ground), even switched the fuses even though they were fine and still have the same problem. Im hopin its not an internal issue with the amp so hopefully someone can help

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  • Trevor McCool Mar 11, 2007

    oh yeah and its a pioneer gm-x252



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Disconnect all input and output cables and check. If the light stays red, it suggests an internal error. If not, proceed by first connecting the Sub wires and checking, then the input RCA's and checking. Remember to switch off the system before connecting/disconnecting, I suggest also removing fuses during this process.

Posted on Aug 31, 2007


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My amp was working good and i didnt use like for two months and know it doesnt work the green light turns on but the red light too of over current and i cant hear nothing i dont know what is it..

if it turns red its a protection light you most likely got the ohms wired wrong on the speakers and the amp is going into protect mode so you dont fry it or the subs

Mar 04, 2011 | Sony XM-2150GSX Car Audio Amplifier

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I have a sony xplod 1000 watt amp, Worked perfect for a month, All of a sudden my subs stop working, But the power light on the amp is always still on. every great while my subs will work again, sometimes...

make sure ur running the right ohm load and if its two channel try bridging it. if already bridged unbridge another thing to check is rca wires i had the same prob with a 1000w explode 2 channel

Oct 12, 2010 | Car Audio & Video

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I have a Kicker ZX350.2...Was working for great for over a year. Now it doesn't power the subs. Green & Red LED lights flash. Any idea where to start looking for problem ?

Check the speaker wire first, get another speaker to see if it works (may have blown yours) or get another signal to plug to the speakers tosee if the play. Also check the RCA's and make sure your signal is getting to the amp

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Kicker zx750.1 Amp in Protection Mode (Red LED)

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My amp stays in protection mode

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Nov 29, 2008 | Sony XM-2002GTR Car Audio Amplifier

1 Answer


I would say that you blew a capasitor on the out take of the amp. All the green light means on the amp is that you are getting power to it, not that it is working properly. If this is the problem it is because you probally tried to bridge a non bridgeable amp. This problem occurs when an amp is not ready to take the 1 or 2 Ohms that come back through it and it blows this little ***** capasitor inside rather than frying the amp, again if this is the case you should be able to open it up and see the one that you have blow. If this is the case get a sodering gun and take the capasitor out, but make sure you mark the - side so that you will know which side to put where (it will be the side with a  different color line on it). after that take the piece out to a radio shack or another electronics store and tell them you need that exact piece. After that just soder it back in and see if it works, if it does great if not ..... it is like a $1 part and you can't break something that is already broke. oh and if it does work .... don't bridge it again XD

Hope that helps :)

Jun 28, 2008 | Car Audio & Video

4 Answers

I have a dub 4001 amp

Take it step wise.

Unplug the inputs and outputs from the amp (be sure to mark the wires so you can hook them back up), leaving only the ground, +12, and remote wire hooked up. Now, turn it on. If the amp light goes red, the amp is broken. If it goes green, turn if off, plug in the speakers, then turn it on. if it's red, its a speaker problem, if green, do the same with the inputs, and you'll have your answer.

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1 Answer

Amp has Red LED light on.

Disconnect all speaker wires and signal cables from the amp. If it powers up, the wiring needs to be checked. If it still shuts down, the amp likely has blown output transistors.

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1 Answer

Amp not working correctly goes into protection

Disconnect the speaker wires from the amplifier and see if it still goes into protection mode. If it still goes into protect with the speakers disconnected, there's a problem with the amp; if not, you may have a blown speaker or a shorted speaker wire.

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