Question about 1993 Toyota Camry V6

2 Answers

Rear tail and stop lights are out

I finally got around to looking at the problem of no tail lights in the trunk section and found the 4 smaller wires leading up from the left trunk hinge to the rear trunk lights broken.  The larger one had the insulation worn through making the conductors visible. I have wired back with new wires of the same gauge using **** connectors to connect.  
On testing I had no tail lights or stop lights.  After not having back-up lights for years, I now have back-up lights.  
I have tested continuity from the farthest **** connector to the first plug connector on the left side of the trunk section, between the plug connector by the current sensor/warning device and the trunk plug, and from the trunk plug to the sockets.  They are tested positive.
Questions: 1. Is the current sensor bad, and if so, would is it tested? 2. Is the ground for both the tail and stop lights the same?  If so, where is it located? 3. What am I missing?

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  • paul4789 Jan 02, 2009

    Thanks.  The Lamp Failure module was badly shorted.  Spent $10 for a used one, instead of the $225 from Toyota.  Did check to make sure that it didn't have any shorts.  Plugged it in and still the tail and stop lights don't work.  Opened the new module and it had shorted.

    Now I have back-up and side running lights, but no tail or stop lights.  This includes the stop light in the back window.  

    So, what would cause the Lamp Failure module to short?

  • paul4789 Jan 02, 2009

    There is no trailer harness.  I did check continuity on the repaired wires from the farthest repair connector to the plug connectors by the trunk light panel and the lamp failure module and all showed continuity.  A schematic would be great -
      I will continue to check.

  • mr840fico Mar 24, 2009




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    Hi All-

    I hope that someone can help as my issue on my 93' Camry LE V4 is similar.

    Long story instrument panel lights were out, I found that the fuse
    controlling these lights had blown. During the process of replacing the fuse,
    the ignition was turned to the "ON" position; thusly causing a spark
    blowing the new fuse when plugged in. I plugged in a new fuse...without the
    Brain fart blunder I now have a new issue.

    I know have no rear lights or license plate lights when the headlights are on .
    When the brake is applied, ALL tail lights illuminate as normal (no license plate
    lights of course), when I let off the brake, the rear main tail lights go out
    and the only light in the rear comes from the red markers at the extreme

    After troubleshooting at the local mechanic, the lamp failure box in the trunk
    was burned out (opened the yellow box and one wire was burned completely) I
    purchased a new one on Ebay for $24.00 (all numbers matched perfectly) I installed
    it and it didn’t fix the issue. When I unplugged the module, it was smelling
    slightly burnt. I opened it and nothing was burnt out but I purchased another
    just to make sure.

    What do I need to do to resolve this? Anything I need to do before plugging in
    the new module? Any help is greatly appreciated.

    I cannot pass inspection without license plate lights or the main rear lights.
    Don’t think I have burned wires as I would assume the lights wouldn’t work at

    I’m stumped.

    Thank you in advance

  • Toyota Ed May 11, 2010

    You have a definite short in the rear harness somewhere. Does this vehicle have a trailer harness? Are you SURE that the repaired wires on the trunk hinge are all good? That is a VERY common are to have broken wires in tow DIFFERENT locations. Pull ALL of the insulation off and check further. I can send you a wiring schematic if you desire.

  • Toyota Ed May 11, 2010

    If the Lamp Failure detection module was bad, it would have burnt marks on the circuit board; take it apart & look at it.

    The ground wires are the WHITE with a BLACK tracer throughout the entire rear wiring. All of the grounds are common, and tied together.



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  • Contributor
  • 9 Answers

This can happen if some desperate soul jams a single element bulb into a dual element socket. Then the dual contacts at the base of the socket get shorted which can apparently burn out the lamp failure module (I saw this happen to a toyota camry lamp failure module 89373). Dual element bulbs have staggered stops and have to be oriented properly to lock them into the base.

Posted on Nov 21, 2011

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  • Toyota Master
  • 1,861 Answers

I have just sent you 4 PDFs via e-mail. They should help you out.

Posted on Jan 02, 2009

  • Ken Mood
    Ken Mood Oct 30, 2011

    do you have a schematic for the lamp failure module that you could email me as well by chance? I would be appreciative. 91-93 toyota camry.



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