Cadillac Owners Forum banner

2002 Eldorado Bose radio - intermittent no radio, ground

2813 Views 5 Replies 6 Participants Last post by  Bigbird8855
2002 Eldorado Bose

I've searched and found nothing definitive, so thought I'd ask again.

If car sits for 2-3 days without starting the radio will not 'turn on', no display, antenna is not powering up, no sound, no controls. Clock display works all the time. Radio is not losing presets when i disconnect ground.

If I disconnect ground at battery (as had been commented on in several posts), it 'clears' and works perfectly, antenna powers up, etc.

While I can't say with 100% certainty, I THINK I can say that if I drive car every day it doesn't recreate.

But I can't get out and disconnect battery every time I want to play radio. Something isn't 'right'.

It has the 12 disc changer, and I've just removed the cartridge to see if the Changer is somehow or another trying to read the discs or somehow draining battery. But no result to report on that one yet.

I'm not getting a theft/lock code or anything like that.

I haven't had the car very long, so I don't know how old the battery is, but I doubt a few days drain would affect the radio coming or, nor would disconnecting ground 'restore' the battery per se. I assume it has to be a module issue? Or at least something that has to be 'rebooted/cleared'. But that's just a guess.

No current codes. History had a low battery volt code and one EEPROM memory, but don't know how old they were. I'm also going to pick up a multimeter that has right settings to test if there is any battery drain going on.

I didn't know if anyone has seen anything like this before. I can keep chasing, but would like to avoid too many goose chases if someone has some direction for me.

Thanks for any insights.
1 - 1 of 6 Posts
I had a problem last summer with my 98 ETC. My battery went dead in storage and when I replaced the battery, I had no sound on the radio.

The fix was to remove both the pos and neg leads from the battery and short them together or hold the pos lead to the neg lead. I did this for
about a minute, then put them back on the battery. When the car started up, the radio was back to normal.
The dealership suggested I do this and my mechanic could not believe it worked, LOL. I WAS TICKLED PINK ! ! !!
1 - 1 of 6 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.