Weird power drain issue. - SOLVED - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 04-25-2004, 11:56 PM   #11
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No, I the light wouldnt dim on any of the in cab fuses. Then I moved to the big fuses under the hood, when I pulled the interior light fuse it dimmed or it was another fuse like ind lights or something... Cant remember, will check tomorrow

But what gets me is what would keep the lights on even after the key is out, its like the car is still getting some signal from the ignition lead...
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Old 04-26-2004, 09:15 AM   #12
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should the power seats be able to adjust when the power is off and key is removed?
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Old 04-26-2004, 09:20 AM   #13
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Um, no, I don't think so....
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Old 04-26-2004, 11:02 PM   #14
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Mine function when the key is off...
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Old 04-27-2004, 09:27 AM   #15
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Okay, The lights when you turn it off that are on very dim are the same as the ones when you turn it to ign. Do you think that the ignition switch might be broken?
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Old 04-27-2004, 12:08 PM   #16
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SOunds like you have a short in the dash.... Dummy Lights shouldn't be on like that.
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Old 04-27-2004, 02:21 PM   #17
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Quote:
Originally Posted by BonneMeMN
SOunds like you have a short in the dash.... Dummy Lights shouldn't be on like that.
I'm suspecting something funky with the aftermarket installation. Something hot is running in series with the dash lighting, and with enough bulbs powered in parallel like that, they'll manage only a dim glow. If it'* a slow drain, it could have been days if not weeks before a fresh battery started showing major problems.

I'm going to guess here that possibly a ground for the sound system is not really grounded, and power from an always-hot supply to the stereo (e.g. for clock or tuner presets) is backfeeding from the sound system'* ground through all the other components that are supposed to share that ground connection. e.g. if there'* a switched power source as well, the current is backflowing through that circuit to seek ground.

I would start by doublechecking any aftermarket wiring connections. Ground wires from the aftermarket unit should be connected to actual sheet metal, not just any nearby wire that happens to be black colored.

You might try disconnecting the stereo for a day or so and see if that makes a difference.
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Old 04-27-2004, 04:14 PM   #18
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i just figured out a similar problem with my car..........the relay or part of the power antenna was drawing power............put the sucker up, and disconnected it......no more draw
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Old 04-27-2004, 04:44 PM   #19
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the power antenna is disconnected

anyways
Quote:
Originally Posted by acg_ssei
Quote:
Originally Posted by BonneMeMN
SOunds like you have a short in the dash.... Dummy Lights shouldn't be on like that.
I'm suspecting something funky with the aftermarket installation. Something hot is running in series with the dash lighting, and with enough bulbs powered in parallel like that, they'll manage only a dim glow. If it'* a slow drain, it could have been days if not weeks before a fresh battery started showing major problems.

I'm going to guess here that possibly a ground for the sound system is not really grounded, and power from an always-hot supply to the stereo (e.g. for clock or tuner presets) is backfeeding from the sound system'* ground through all the other components that are supposed to share that ground connection. e.g. if there'* a switched power source as well, the current is backflowing through that circuit to seek ground.

I would start by doublechecking any aftermarket wiring connections. Ground wires from the aftermarket unit should be connected to actual sheet metal, not just any nearby wire that happens to be black colored.

You might try disconnecting the stereo for a day or so and see if that makes a difference.
Thanks, that seems like it could be a very good possibility, I will take out my cd head unit and try that out, if that does the job it will be nice, but if it doesnt Ill start taking the dash apart and looking around.
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Old 04-29-2004, 01:28 PM   #20
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Fixed
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