Question about 2001 Cadillac Catera

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2001 cadillca caterica the radio shuts off and

2001 cadillca cateria the radio shuts off and comes back on itself

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Check or replace/repair the K134 multi function relay module located under and up the dash on drivers side. Its about the size of a pack of cigarettes and gray in color.

I opened mine and re-soldered all the components on the board. I had radio going on and off, trunk not opening, sunroof with mind of it's own, and dying battery.

All was solved with this module...under $100 at the dealer if you don't want to goof with it.

Posted on Jul 30, 2010

  • radarman817 Apr 06, 2011

    Same problem on my son's 2001 Catera. I went to pull-a-part in Indy and bought a couple of used ones. This did in fact fix the problem. So, I have an extra if you still need it. Will let go very cheap.


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Why does the original factory radio come on when the car is off and drain the battery?

Because the circuit that feeds it power is not properly shutting down when you turn off the car. Could be a faulty ignition switch.

But what you can do and save some bucks is to just turn off the radio completely when you are leaving. Then the only juice it will consume is that used by the memory and clock circuits, which is normal and very low in drain.

Now if that radio is turning itself on when you leave the car you have two problems - 1 - a fubar radio with a mind of its own and 2 - a power circuit that is on when it should be off.

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When there is a CD playing, there is no problem. But when I take the CD out, the radio does not function properly. It switches back to CD and then changes the radio station every 1-2 minutes!I can not turn...

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