Rear Dome light, 01-lw300

Discussion in 'Saturn L-series' started by Oppie, May 15, 2008.

  1. Oppie

    Oppie Guest

    Rear dome light went out again on the lw300. In the past I found that
    wiggling the diode in the left side fuse panel brought it back on. Tried it
    in the dark last night and the top part of the plastic package broke off in
    my hand. After managing to extract the remainder of the diode, found that
    the actual diode was only crimped into the terminals and that there was a
    poor connection that overheated the contacts and caused the plastic to get

    Anybody know if the diode in a mini fuse package is available at an auto
    parts store or only a dealer item?

    Thanks - Oppie
    Oppie, May 15, 2008
  2. Oppie

    -Cronus- Guest

    You mean like this?
    Yeah I dont know who would have those locally.
    -Cronus-, May 16, 2008
  3. Oppie

    oppie Guest

    That's the one. Haven't been able to go shopping yet but $2.50 plus shipping
    gives a good starting price.
    Thanks for the reply.
    oppie, May 18, 2008
  4. Oppie

    Oppie Guest

    Found this part

    Now just looking for stock somewhere.
    Oppie, May 20, 2008
  5. Oppie

    Oppie Guest

    This is completely nuts! I tried several auto parts stores and nobody had or
    even knew of the diode. One mechanic said to try Radio Shack (you know, the
    place where they say "you have questions, we have answers") and no dice
    there either.

    Finally gave up and made one from an old mini blade fuse. ripped out the
    fuse link and with a razor blade, cut off the top 1/16" of the plastic
    housing. This exposed the pins at top for soldering in a new 1N4005 (1 amp,
    200 piv) diode. The new assembly does not have the polarity protection that
    the original had. I made sure to add the polarity (the diode symbol) to the
    fuse box cover so it does not get confused.

    Haven't tried it yet but would assume that if the diode is in reversed,
    opening a door will not turn on the rear cargo lamp (conversely, turning on
    the cargo lamp at the dome light will turn on the other interior lights).

    Oppie, May 22, 2008
  6. Oppie

    Oppie Guest

    Cobbled up diode assembly I made in about 5 minutes with materials on hand
    works fine. The lamp actually runs brighter since the voltage was not being
    lost in a bad crimp in the original diode assembly. New diode also runs cool
    where the old one got so hot, it cracked the plastic case.

    As written earlier, my homebrew part does not have the polarity key. Looking
    at the fuse panel, the polarity key is at the bottom of the diode socket.
    This would make the cathode (the side with the line on it) point to the
    Cathode ---I<I----- Anode

    At closer inspection, the original diode has a number on it 12135037.

    Googling for this comes up with Mouser selling them:
    Stock $3.29/ea $2.43 @ 25 pieces

    Looks like it is made by Delphi Connector systems although it appears to
    have a Littelfuse logo on it.

    Oppie, May 23, 2008
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