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Carverm1.0tlowb+problem cannot find cause

I replaced 2 blown caps c401 an c402 amp runs but b+ is only half have hum in one speaker low output on the other can you help??? thx ed @just-audio.com

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You have this problem posted under the Car and Truck category, please post it under the correct category so the right expert will see it and help you. Thanks

Posted on Feb 17, 2012

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I have a 2004 saturn ion redline i need to know how to bypass the factory amp


Connect the "speaker" outputs (probably actually low level outputs) from the radio to the amplifier you plan to use and connect the speaker outputs from the factory amp to the speaker outputs of the amplifier you plan to use. The radio will not work without a separate amplifier.

Dec 25, 2017 | Saturn Cars & Trucks

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Having trouble with all my speakers except my twitters in a 2007 Saturn Outlook...what do I start with? Fuses are good


Speakers get power from the amp if your system has one or from the radio , if the tweeters work it's not a fuse problem . You like listen to your stereo loud . Blew a channel in the radio or amp ?
Take it and have it checked for DTC'S - diagnostic trouble codes
DTC B1025 01: Audio Output 1 Left Front Circuit Short to Battery
DTC B1025 02: Audio Output 1 Left Front Circuit Short to Ground
DTC B1035 01: Audio Output 2 Right Front Circuit Short to Battery
DTC B1035 02: Audio Output 2 Right Front Circuit Short to Ground
DTC B1045 01: Audio Output 3 Left Rear Circuit Short to Battery
DTC B1045 02: Audio Output 3 Left Rear Circuit Short to Ground
DTC B1055 01: Audio Output 4 Right Rear Circuit Short to Battery
DTC B1055 02: Audio Output 4 Right Rear Circuit Short to Ground

Each of the audio output channel circuits (+) and (-), at the radio and audio amplifier (if equipped) have a DC bias voltage that is one half of the battery voltage. When using a DMM, each of the audio output channel circuits will measure approximately 6.5 V DC. The audio being played on the system is produced by a varying AC voltage that is centered around the DC bias voltage on the same circuit. The AC voltage is what causes the speaker cone to move and produce sound. This voltage will vary depending on what type of audio is being listened to, talk or music, and type of music, as well as the volume setting of the system. Low volume and talk settings will measure around 1V AC and less, where constant music may measure 3 V AC and slightly higher.
Do you know how to do DC voltage testing ?
Without Amplifier without UK6
Ignition OFF, disconnect the harness connector at the appropriate speaker.
Radio ON, test for 5.0-7.5 V between the signal circuit terminal A and ground.
? If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the radio.
? If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the radio.
Test for 5.0-7.5 V between the signal circuit terminal B and ground.
? If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the radio.
? If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the radio.
If all circuits test normal, replace the speaker.

Dec 25, 2016 | Saturn Outlook Cars & Trucks

1 Answer

My 2001 330ci has the Harmon Kardon sound system. However, when I run the system at high volume for about 5 minutes, the front speakers start cutting in and out. It doesn't seem like a speaker is blown,...


Thermal issue is shutting down amps till temps moderate. You must be driving your system too hard. And check out your tone control settings especially the bass. Every 3 db boost forces amp to double power at that frequency so if you are already blasting at 100 watts, a 3 db boost will compel amp to put out 200 watts, etc. Very easy to overdrive and overheat amp. You might want to try blowing air over output stages to improve cooling at high volume levels.

You are lucky that you have good protection circuits - otherwise by now you would have blown the output stages.

May 08, 2017 | 2001 BMW 330

1 Answer

My amp in my jeep that goes to my door speakers broke and i want to know if there is a way to like wire the wires together so i dont have to get a new amp


WTF ??????????

If the amp is blown then the high amp signal OUTPUT
WON"T have any current coming from it, disconnect those wires, and RECONNECT the low signal input from the head unit directly to the speaker in order to have music BUT not need a new amp.

Mar 31, 2010 | 1996 Jeep Grand Cherokee

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1997 Chevrolet Cavalier 2.2L


well look at the fuel consumtion and the power it has while driving... if it is getting low mpg and it has low power than i would say that the timing is off . it is probably to far advanced and no matter what you do to keep it running cool it wont... and does it run hot going down the road or sitting still. if it is running hot while going down the road and the timing is right. your radiator should be cleaned ( the out side) if it is while it is sitting still check see if the fan is even coming on.

Jan 30, 2010 | 1997 Chevrolet Cavalier

2 Answers

1994 corolla cranks but, won't start, and blows a 15 amp fuse of some kind


There is a possibility this could be your fuel pump fuse. Without current the fuel pump will not pump fuel and the engine will not run. Can you be more specific about which fuse is being blown? The fuses in the engine compartment are identified in the diagram on the fuse box cover. If this is not legible, take a picture and post it here to identify the fuse. The fuses in the inside compartment are identified in a diagram on the fuse panel door.

Does the fuse blow as soon as you turn the key in the ignition, or does it blow after you crank the starter?

Try this: turn the ignition key to the on position. The fuel pump is right under the rear seat on the passenger side. If it is running you will hear it humming. You can also hear it humming from outside the car. It will run even with the engine off, but with the key in the on position. If you do not hear anything, the fuel pump is not running.

If the fuel pump is not running it could be due to a number of causes. Could be a faulty pump, or faulty wiring, or faulty harness. You will need to diagnose the cause with a voltmeter.

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Jan 19, 2010 | 1994 Toyota Corolla

1 Answer

28 Solutions for ''HOw can I tell if I have a cracked head blown head gasket or cracked blown like how can I see it''


Often (but not always), a blown head gasket will also cause deposit of water on a piece of cardboard held an inch from the tailpipe output while the engine is running (when this is happening, it is likely that the catalytic converter has been ruined and the muffler will corrode in short order as well).

Sometimes drops of water will be seen dropping from the end of the tailpipe. Another clue: turn on the heater; often when the head gasket is blown an odor of antifreeze and synthetic rubber will emanate from the heater vents.
Many of the symptoms of blown head gasket can be caused by some other problem in the cooling system, without the head gasket being damaged. Conversely, other problems with the cooling system can cause a blown head gasket and/or warped head.

When checking for a blown head gasket, one of the most common tell-tale signs is a milky-gray ring around your oil cap. When coolant enters the engine oil through a crack in the head or through a blown gasket, it evaporates and leaves a milky ring around the oil cap. Another easy way to tell is to check your oil dipstick. Change your oil and pull out the dipstick. Make sure that you take note of how far up the dipstick the oil is. Top off your cooling system and fill your cooling reservoir to the top. Screw radiator cap back on and start engine. Run engine for about 20-30 mins. or until it reaches normal operating temperature. Allow engine to cool (engine must cool completely to get accurate oil reading!!). Check oil dipstick again. If the oil has a watery appearance and has risen noticeably up the dipstick, the you probably have a blown head gasket or a warped head. Also look for a dripping, sweet-smelling liquid coming out of your tailpipe. Any of the above symptoms could be the result of a blown head gasket. The easiest way to tell is with a compression meter. This replaces the spark plug and lets you know what compression each cylinder is running at. If your compression is abnormally low, then you have a blown head gasket or a warped head. (note: consult repair manual for appropriate compression of each cylinder.)

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1 Answer

Car stutters like it's starving for gas. Have a few issues that I could use help on. 1. Car runs great in the morning (1 hour drive). In the afternoon on my way home (about a half hour in), it starts to...


Gas cap has no bearing,lol. Check the wiring under the battery tray. They're notorious for corroding through the wiring & cause a short to the ecm. This results in retarded timing & wierd stuff going on. Write back if you need more. Old car,lots to check.

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1 Answer

1999 chevy suburban misfire


could be one of several things
1) run a compression check, if it low on that cyl then you have a blown head gasket or burnt valve
2) could be the enjector

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Bass amp not turning on: 2001 ford mustang convertable V6


hey you battery might be going low or some fuse might not be pushed in all the way if its not that then you probably got a blown amp

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