Question about Car Audio Receivers
Recently had new battery fitted,now radio will not work. I bought car secondhand with no owners manual. Renault Laguna Sport, year 2000, model 1.8 16valve.
I don't know if this works on those newer type stereos but years ago people used to put vauxhall stereos in the freezer for 24 or so hours, defrost so there's no water on the circuits or pop the top off & wipe circuits dry, then power it up & the code is not needed any more.
I have done it myself before & it did work but they changed the EPROM chips after that little trick got around as EPROM stands for (Erasable Programable Read Only Memory) & freezing them worked, if that dosent work you could try finding the chip (look's like normal chip but has a white sticker over a glass lens on the top middle of the chip) ultra violet light re-sets some when passed over the chip lens, you could have a laugh & go to your local shop & use their note testing light as that has a UV Ultra Violet tube. anyway joking aside freezing cant hurt & it is a joke having to pay for your own car stereo code if it is legally your car stereo & you can prove it!
Have fun Oh & by the way im not insane just an electronic engineer!!!!
Posted on Mar 26, 2009
Not familar with your car but I had same problem many years ago with a Vauxhall Astra and did same as you, disconnected battery and re-connected, radio didn't work - but my display kept flashing for security code to be re-input, which I didn't have.
Yours could be the same if radio not worked since disconnection - solution: if you dont have code & not in any documentation you got with car, then the radio will need to be re-coded by a dealer (expensive) or enquire with local car spares shops - they normally know a cheaper source. Mine cost about £18 (5 years ago) to get re-coded & I had to remove & reinstall myself.
Posted on Jan 01, 2009
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