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  1. #1
    mikejpss
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    Default Spare Tire Light stays on ????

    Can someone tell me why my spare tire light stays on? This light is located under the rear bumper, between the spare tire compartment and the bumper.
    I have had trouble with my (brand new) battery draining after 8-9 days. I am hoping this is the problem. Just found it this afternoon....
    However, I have no idea what actually activates this tire light so that I can turn it OFF. !!!!
    Is it part of the park light system, headlight switch or what?
    Any help would be appreciated.

    Merry CHRISTmas everyone.
    Mike J.

  2. #2
    Administrator Yoda's Avatar
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    It is on a timer and should shut off along with your interior lights. It stays on for about 15 seconds or so after the car is shut off and the doors are closed.

    It has been referred too as a "walk around light" too,
    "Quality, not quantity"
    "The American people will never knowingly adopt "SOCIALISM." But, under the name of "LIBERALISM," they will adopt every fragment of the "SOCIALIST" program, until one day America will be a "SOCIALIST NATION," without knowing how it happened.
    (Norman Thomas, U.S. SOCIALIST PARTY CANDIDATE PARTY presidential candidate 1940, 1944 and 1948)


  3. #3
    Member evariste's Avatar
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    And remember that interior light stays on when the dimmer command of the dashboard is turned to the max...

  4. #4
    mikejpss
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    Default

    I know about the dimmer function on the headlight switch, thanks very much. It has been on the "minimum" setting since the onset of my battery drain problem.
    What started as a courtesy light problem (staying on for an extended period) now looks like a relay problem , the spare tire light staying on is the proof of the battery drain as I have removed the bulbs from all interior courtesy lights.
    Taking out the garbage last night I found that light on, several hours after I had taken my daughter-in-laws for a CHRISTmas ride in lil red.
    Come to think of it, this is the first time taking out the garbage has "paid off" . Looks like I'll be changing this relay soon.
    QUESTION: Where is this relay located ? I remember one posting saying it's behind the glovebox??????.
    Thanks, Mike J.

  5. #5
    Member evariste's Avatar
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    Yes, the timer is behind the glove box, on the rigth side juste above the cables. It is an orange box with a printed circuit in it.

    I have changed mine for a new printed circuit developped by a friend. It makes the light come on or off gradually like modern cars do, and has a battery saving function : If you let the doors open, light comes off after 2 minutes.

  6. #6
    81Red
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    Hi there.

    There is a courtesy light delay timer that controls all the lights you have mentioned. It is a transistorized unit about the size of a small box of matches. When it fails, it will make your interior lights inoperable with the door jamb switches. Or, it will fail by keeping everything ON all the time.

    It is located in the harness that runs on the door jamb of the passenger side. Take out the glove box insert (several phillips screws) and reach down to the right. You will feel it right away because it will be very warm. If you unplug it, your all your courtesy lights will go out, as operated by the door jamb switches. But the headlight switch will still turn on the courtesy lights if required.

    The delay module has a small circuit board containing three transistors and a power transistor, which is usually the culprit. A replacement can be bought from ZIP Products for $51, a pretty fair price.

    Good luck.

    Bernie
    81Red

  7. #7
    mikejpss
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    I just bought a new one(courtesy light delay module) from one of our members here on this site- he works for a GM dealer. My cost was $47 including shipping- can't beat a price like that .Thanks Dave for the help and was good to meet you . Aint life grand?
    If you need this relay, shoot me an email and I'll get you in touch with Dave.

  8. #8
    Administrator Yoda's Avatar
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    Mike and others

    Please take a look at the homepage of the L81VetteRegistry toward the bottom of the page: “The Parts Connection”
    "Quality, not quantity"
    "The American people will never knowingly adopt "SOCIALISM." But, under the name of "LIBERALISM," they will adopt every fragment of the "SOCIALIST" program, until one day America will be a "SOCIALIST NATION," without knowing how it happened.
    (Norman Thomas, U.S. SOCIALIST PARTY CANDIDATE PARTY presidential candidate 1940, 1944 and 1948)


  9. #9
    mikejpss
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    Hey Bud, I was unaware of "The Parts Connection" on this site- but you can bet I'll use it from now on. It so happens that Dave emailed me some time ago and offered to help me with the new part. Just another reason why this is such a GREAT site for 81 owners-everyone working together for the one vehicle we all love.
    Thanks for making me , and others aware of this extra swell service. And again- thanks Dave for the part at a great price.

  10. #10
    Dave L.
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    No problem Mike.It was nice talking with you the other day.

  11. #11
    Member evariste's Avatar
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    May I ask a question ?

    Some friends having a C3 have tested and liked my "progressive" light timer. They asked me if I could build some of them. Mine is only a prototype, and it works very well. If I can find at least 10 persons interrested in it, I can have a small serie of them built. I have already 3 here in France.

    So, I would like you to sit in your 81'Vette, observe the light go off and on, and think about that : Wouldn't it be more comfortable if it was progressive ? If you could have it for only $45, would you order it ?

  12. #12
    mikejpss
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    Thanks to Burglar, I have installed my new "courtesy light timer" today and the system is back to normal, even repaired the glove box light while I was at it. Thanks Dave for the good price on the new timer and taking care of my needs.
    I have the old timer in my hand if someone wants it for repairs, drop me an email at : sowtrout@eatel.net.
    GM part # 46-3498
    the old one held the lights "on" at all times.

  13. #13
    Dave L.
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    Mike - I'm glad to hear every thing is operating properly now. Glad to help any time!

  14. #14
    Member zackm58941's Avatar
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    hi, i have a vette with the same problem. the interior lights along with spare tire lights stay on so i unplugged all of them until i could find out what wrong but the car's battery still goes dead after a week or so. could the power going to all of the light sockets still drain the battery after a week or more or is it probably another problem???

  15. #15
    mikejpss
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    Its probably another problem, unless you overlooked a bulb. Theres a bulb on each kick panel, one overhead and one under the rear bumper. Dont forget to make sure there's nothing in the cigar lighter too.

    Are you sure the battery is good?

    If the bulbs are disconnected, there will be no current draw to them. You may also want to check the battery to see if it had a bad cell or 2.

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