Question about Car Audio & Video

1 Answer

My protection light want shut off.

Is there a way i could get my amps protect light to go off without going to a repair shops? If so could you tell me how or send diagram showing how.

Posted by on

  • bigbooty561 Mar 20, 2009

    i have a formula 5175 1200 watt amp with two 12s. the protection light wont go off unless the remote wire is removed and the4 amp wont work without the remote wire...... help!!!

  • Anonymous Mar 29, 2009

    I have the same problem and sent it back to the place I purchased and they say amp is fine but have sent replacement back anyway, it still doesnt work, have tested wiring on another amp and sub and its fine, any one any idea? Stupid prt mode, its a fusion sub and amp



1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 13 Answers

Not if the amp is damaged. An amp that remains in protect mode (after cycling the power) usually has an internal fault and must be repaired.

Posted on Sep 04, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Technician can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Technician (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Protection light came on what cut off

Amp in Protection - Troubleshooting - Basic Car Audio ...
Some simply shut down and the power light will not illuminate when in protect mode. If the power light blinks then goes off, the amp is either going into protect ...

How do I fix my amp it keeps going into protection mode ...

? 2:00
Apr 24, 2013 - Uploaded by Nathan West
My MTX 600xd amp light won't even come on. ... Red light comes on. ... one.. and some times it goes into protection... once I turn the car off...

Jan 11, 2016 | Car Audio & Video

1 Answer

Having problems with my SONY str-db798 amp. When i turn it on (without any speakers or even with speakers) it flashes "PROTECT" and shuts down. Any suggestions how to deal with it without getting...

Press and hold down the power button on the front panel until you hear a secondary "click" from inside the chassis. That takes about 15 seconds.

Then read my tutorial on how to keep your receiver out of protect mode.

Sep 03, 2011 | Sony STR-DB798 Receiver

2 Answers

Goes into protect mode and shuts off. Any

If the unit goes into into protection it usually means the amp is blown. It would need to go into a shop for service if the repari is not cost prohibitive

Dec 11, 2009 | JVC HX-C6 Shelf System

1 Answer

My sound cuts out and the power light blinks consistantly about 3 times and now i have no bass and the power light comes on about every 20 seconds and then shuts off

the amp it going into protect mode because there is an internal fault with the amp. it will need to be repaired. best this to do is find a repair shop and let them handle it good luck man

Oct 24, 2009 | Jl Audio Slash v2 500/1v2 Car Audio...

1 Answer

The protect light came on what do i do

Usually that light comes on by over powering the amp and sending it into protect. Usually by just shutting off the amp and turning it back on solves the issue. Some amps even come back on on there own after about 30 secs. If you have turned it off and back on and the problem still persist, try disconnecting the main power, check all the fuses on the amp and then reconnect the main power. If the problem still persist, then it is time to start looking for a repair shop, return for warranty( if applicable) or buy another amp.

Aug 24, 2009 | Rockford Fosgate Car Audio & Video

1 Answer

Kicker protection light won't shut off

Hello newwithtech,

There are 4 possible causes for the amp to go into protection mode. Kicker calls it SORT for Short, Overvoltage, Reverse polarity, and Thermal. If the amp has been in and working properly, it's probably not reverse polarity. And if it goes immediately into protection when power is connected, I'd rule out thermal. So it's probably either a short or overvoltage.

1) Start by removing the speaker wires and see if the amp powers up properly. If it does, one or more of the speakers is shorted or grounded.

2) Test each pair of wires with a multimeter set to the lowest resistance (ohms) scale. Measure across each pair and from each individual wire to ground. Across each pair, the meter should read about 3-4 ohms. From each individual wire to ground, it should read infinity. If the meter reads "0" ohms (shorted) in any test, you have located the problem.

3) If the speaker wires test OK, set the meter to read DC volts and measure the voltage at the amp positive terminal. If the voltage is higher than 16V or lower than 9V, you've located the problem.

4) If the voltage is OK, remove the RCA inputs and test for proper power up. If it powers up without going into protection, you have a shorted/grounded input. Replace them one at a time to determine which one(s) is/are defective and replace the cable.

If these tests show all the wiring is good and the voltage is OK, the amp is probably shorted internally (most likely an output MOSFET), and requires service at the component level. You need to take it to your local audio shop or send it to Kicker for repair.

Hope this helps.

Jun 29, 2009 | Kicker KX300.4 Car Audio Amplifier

1 Answer

ZX3-T4D Audio Amp

Normally that means that you have a blown channel in the amp. Sometimes it can be triggered by a bad speaker. dis-connect your speakers and see if it still goes into protect. If it does not go into protect, yu amy only have a bad speaker. Get them checked to see if one is bad and then replace it with a good one. If the amp still goes into protect, you need to have your amp checked by a professional technician to have it repaired.

There is no way to tell just what is bad inside the amp or how much it will cost without having it checked properly. Sometimes these problems can be fixed for as little as $65 and other times it may cost over $200. It just depends on what is found to be the problem.

If I can be of any more help let me know. I have been repairing car and home audio equipment for nearly 18 years and can be very helpful.

Good luck,


Aug 01, 2008 | Car Audio & Video

1 Answer

Protection mode

Disconnect all speaker wires from the speaker terminals of the amp. If it powers up and doesn't go into protect when you increase the settings, the wiring needs to be checked. If it still shuts down, the amp may need to be repaired.

Does it shut down or make loud noises when you move the RCA cables where they plug into the amplifier?

Mar 27, 2008 | Power Acoustik LT-980/2 Car Audio...

2 Answers

Protection mode on Lanzar Vibe 241

Almost without exception, if the protection light comes on as soon as you power it up, the output transistors are defective. Any reputable repair shop that services car audio equipment should be able to repair it.

Oct 06, 2007 | Lanzar VIBE241 Car Audio Amplifier

2 Answers

Diagnostic light

Best thing to do is disconnect all the speakers with no input on the amp turn it on and if its still in protection seek help in the repair of said amp at If the protection light goes out then start to put back on each speaker with no volume and the unit off. if you get to a speaker that makes the unit go into protect then leave on that speaker and disconnect all the rest .. If the protect remains then something with that speaker or wiring is bad BUT if after disconnecting the rest of the speakers that you hooked up then theres is still a power issue with your amp

Apr 05, 2006 | Performance Teknique ICBM-782 Car Audio...

Not finding what you are looking for?
Car Audio & Video Logo

Related Topics:

581 people viewed this question

Ask a Question

Usually answered in minutes!

Top Car Audio & Video Experts

xxxxxx xxx

Level 3 Expert

4886 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers


Level 3 Expert

77202 Answers

Are you a Car Audio and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides