Question about Pioneer GM-5100T Car Audio Amplifier

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Amp pulses when hooking up my amp to the power and ground it only puts a pulse through the sub about every 3 seconds even with rcas disconnected

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Please check the ground again make sure there are no breaks in the wire and also check the power cable to make sure it is connected properly

Posted on Mar 10, 2009

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Make sure our ground is good thanks pierre

Posted on Jul 18, 2008

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1 Answer

2001 Acura mdx abs light stays on. Code reads 04?


I think you pulled the code incorrectly, or are reading it wrong. To get code:
1. Jump pins 4 & 9 on OD2 connector.
2. Turn key 2 clicks.
3. ABS light should blink to give you code. (long blinks for first digit, short ones for second. Example: One long blink and three short blinks would be 13).
Honda ABS trouble codes list :
11= Right front wheel sensor (open/short to body ground/short to power)
12= Faulty right front wheel sensor pulse signal
13= Left front wheel sensor (open/short to body ground/short to power)
14= Faulty left front wheel sensor pulse signal
15= Right rear wheel sensor (open/short to body ground/short to power)
16= Faulty right rear wheel sensor pulse signal
17= Left rear wheel sensor (open/short to body ground/short to power)
18= Faulty left rear wheel sensor pulse signal
21= Continous Operation (chipped pulser)
31-38 are all the same: "solenoid"
51= Motor lock
52= Motor stuck off
53= Motor stuck on
54= Main realy stuck off
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Jul 03, 2013 | Cars & Trucks

1 Answer

How to hook up to subwoofer?


You will need one pair of RCAs connected to the unit in the rear where it says "sub" and a remote turn (connected to the radios blue and white wire) on running from the radio(with the RCAs) to an amplifier. You will also need a power cable from the battery and a chassis ground coonected to the amp. Connect the subs (usually in some sort of enclosure) to the amp.

Jul 25, 2012 | Clarion VRX755VD Car DVD Player

1 Answer

When my RCAs are hooked up to my amp, my subs start hitting without any volume turned on


1. Check Grounding system (Player and Power Amp).
2. Ensure your RCA cable is OK
3. You might adjust volume or bass volume on power amp to maximum, just set all to 50% while you are tuning.

Mar 28, 2010 | Kicker CVR12 Car Subwoofer

1 Answer

Subs hit without volume on


1. Check Grounding system (Player and Power Amp).
2. Ensure your RCA cable is OK
3. You might adjust volume or bass volume on power amp to maximum, just set all to 50% while you are tuning.
4. Check the speaker out cables might contact the ground/ chassis

Mar 28, 2010 | Kicker CompVR 05CVR84 Car Subwoofer

1 Answer

Rockford p8002 keeps pulseing. (not a ground problem)


for seeing a out of phaze speaker you would have to run like a 10 hz or lower signal to the amp you might be seeing a optical illusion if they were out of phaze or backwards the speaker would have cancled each other out so it would sound like **** as you said.but anyway it sounds like the amps power supply is bad.put it back in you car and see if it still works like it did befor you put it in your friends car.you may have burned it up.find out how much the amp is worth and if can have it fixed for less then 60% of orignal cost then have it fixed

Mar 18, 2010 | Rockford Fosgate Punch P8002 Car Audio...

1 Answer

Well to start off i got a 15 in jl and a rockford fosgate punch 40 and an old autotech well i was hookin a 12 into it and all of a suddin it started pulsing real loud and engine noise when i drive some of...


bad ground connection if you tap your ground your speakers will pulse. I have a 98 blazer with a 15 in the back. I had the ground to my amp hooked up to the rear seat bolt. Same issue as you. I found a better ground on the hatch... solved problem

Sep 04, 2009 | Pioneer Premier DEH-P480MP CD Player

1 Answer

A pulsin sound from the subs


You don't give us much to go on...

Are your subs self-powered? Disconnect the Line In to see if that makes the pulsing stop. if it does there's some kind of signal coming from UPstream or a cable has poor shielding. If it keeps pulsing something's wrong in the sub's power amp(s).

Isolate that much and come back.

May 12, 2009 | Audio Players & Recorders

1 Answer

Cant figure out my car audio problems!!!!!


There are a couple of tests you can perform. I'd first recommend checking the shield ground. You'll need an ohm meter. The details can be found on the following page.

RCA shield ground test

You can also test the output with the multimeter. Set the multimeter to AC volts. If it's not an auto-ranging meter, set it to a voltage range of ~2v AC. Disconnect the RCA cables from the head unit. Touch one meter probe to the outer ring of the head unit's RCA jack. Touch the other probe to the metal contact in the center of the RCA jack. With the head unit near full volume and a clean signal source, you should read at least one volt on musical peaks. If you have a bass disc or a test tone disc (~60hz sine wave), use those.

May 04, 2008 | MTX Thunder 8302 Car Audio Amplifier

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