Tahoe dead after tail light install..

[lynxnova]

@1_8TTony thank you for the detailed response it's perfect information... I'm at the dealership now and of course they are trying to say that I left my lights on....smh freaking idiots, I told them that I leave my lights on auto all the time.... they have to replace it and of course with your information I had them check the alternator ... I also explained to them about the voltage and now they are gonna check because they think I know my ish about trucks....lol... thanks to people like you and everyone on this forum giving us novice people some knowledge these dealership service Dept. Can't pull a fast one ....


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[lynxnova]

Ok, I spoke to soon.... of course the dealership blamed the dead battery on my 10" sub connection... this is the explanation they gave me...

. So can this be true?.... I bought the truck used in sept. Of this year and I put the speaker in about 2 months ago...


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[lynxnova]

This is the speaker set up

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[lynxnova]

My question is can my subwoofer. Drain the battery that quick? I had this same sub set up on my previous 2010 Tahoe for 4 years and I never had a problem with my battery...


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[gat0r]

dealer/tech possibly being lazy.


however,
-test draw on system w/o woofer hooked up.
-then hook up the woofer & test draw on system.
does woofer setup auto power off? if so , how long does it take?
i would assume 10-15 minutes.

-if it does auto power off, test amp draw again.

see if results prove their theory.


also leave woofer unhooked for a few days... see if battery dies again.

 

[lynxnova]

Yes the woofer has auto shut off, it takes about 5min then it shuts off... the system is a woofer and amp combo where the amp comes in the sub box so I wouldn't know on how to test the amp separate from the woofer. I will disconnect the sub for a week and wait to see if the battery has power still... I know they probably recharged it so it might last a couple of days.... do I need to disconnect the woofer from the battery itself or can I just disconnect the plug and wires from the sub box?


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[AngelXL]

Just make sure the amp is turning off with the ignition. If you are using the factory radio. You don't have a remote wire for the Amp.

 

[lynxnova]

Theres a blue light that turns on the subwoofer box when I turn the truck so I'm assuming that's the indicator light for when it's on and off.... the blue light turns off about 5min after the truck is off, does that mean the amp and subwoofer if off?


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[yates ™]

Just make sure the amp is turning off with the ignition. If you are using the factory radio. You don't have a remote wire for the Amp.

Theres a blue light that turns on the subwoofer box when I turn the truck so I'm assuming that's the indicator light for when it's on and off.... the blue light turns off about 5min after the truck is off, does that mean the amp and subwoofer if off?


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The amp shutting off or the blue light have nothing to do with a power draw. Just leave the amp unhooked, should be able to do this by pulling the fuse, and see what you can find.

This article may help you, http://www.popularmechanics.com/cars/how-to/a5859/how-to-stop-car-battery-drains/

 

[WillCO]

I bet 99% of dealers are going to see that subwoofer and blame the problem on it. It's a legitimate possibility though - even if the sub's amp is designed to shut off with inactivity, the switch can malfunction. A car amplifier could definitely suck down a battery on its own in a couple days' time.

I agree; unplug it for a while and see if the problem persists.