What does Loc mean on the radio screen of a 1987 pontiac 6000? my radio also doesnt work, im trying to figure out if i can get it fixxed

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Question moved to make model category.

LOC is LOCked. This is the three ways to get a radio code.

https://www.fixya.com/support/r29874205-need_vehicle_radio_code

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Battery connections must be dirty or loose...does it jump start? I'll bet the lights and radio still work...if connections are clean and tight, you will need to check the alternator...Hope this helps.

hope it helps

LOC usually means LOCKED because wrong codes have been entered.

To reset , leave SWITCHED ON...UNDISTURBED for as long as it takes to automatically reset itself.

This can often be as long as 24 hours or more as the waiting time doubles after each wrong code.

The LOC stands for locked
You will need a code to get this radio to operate.
You will need to have the code entered at any GM dealership & have proof of ownership with your ID
It is a theft deterrent system installed on all radios these days since the 90's

Look at a picture of a new starter like autozone page you will figure it out. You may have to remove exhaust manifold

Try 0000. If that does not work, take to GM dealer.

42 C3-I EST or Bypass Circuit Failure

Hope this helps. =)

I had the same problem 1990 6000, I replace the engine cpu behind glove box 75.00$. that did the trick.

I had the same exact issue today on my 86 Fiero. The Radio and Horn stopped working same time. There is a 20 amp fuse that is marked for the Horn but no mention of the radio. It is in the middle of the Fuse box. 86 -88 should have the same fuse box. ( If you reference the Chilton book they say the fuse is for Horn Cigarette lighter etc. but again no mention of the radio) I just happened to check this fuse (It was blown) and sure enough everything came back. Hope this helps......

Fiero R12