1991Toyota Camry Lamp Fairlure Sensor (The Expensive Little Yellow Box)

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Old 30 Apr 2004, 06:09 pm   #1 (permalink)
joecamry91
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Default 1991Toyota Camry Lamp Fairlure Sensor (The Expensive Little Yellow Box)

On my Camry the rear lights where not working. I took it to a mechanic he
said it was the sensor. He took it out and was looking for a after market
sensor,he was unsuccessful. He told me that it can only be purchased at
the dealer. To make a long story short, I got the sensor, I connected one
wire to the sensor now the other wire with a blue connector I don't know
where it goes. Does any one know where this wire goes? Also, I replaced
all the bulbs, and I am still not getting the signal light. Is it because
I did not connect the other wire from the sensor? Please help.

P.S. Toyata Dealer Wants $190.00 for that stupid little yellow box(Lamp
Failure Sensor) They are such a Crook


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Old 01 May 2004, 01:57 pm   #2 (permalink)
Travis Jordan
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Default Re: 1991Toyota Camry Lamp Fairlure Sensor (The Expensive Little Yellow Box)

joecamry91 wrote:
> On my Camry the rear lights where not working. I took it to a
> mechanic he said it was the sensor. He took it out and was looking
> for a after market sensor,he was unsuccessful. He told me that it
> can only be purchased at the dealer. To make a long story short, I
> got the sensor, I connected one wire to the sensor now the other wire
> with a blue connector I don't know where it goes. Does any one know
> where this wire goes? Also, I replaced all the bulbs, and I am still
> not getting the signal light. Is it because I did not connect the
> other wire from the sensor? Please help.
>
> P.S. Toyata Dealer Wants $190.00 for that stupid little yellow
> box(Lamp Failure Sensor) They are such a Crook


Sorry, but I don't remember the wire / connector colors and I don't have
a schematic for my long-gone Camry. Maybe you should have your mechanic
put it back the way he took the old one out?

Anyway, this is a soft spot for the early models - and you may not be
happy to hear that in some cases the sensor isn't the problem.....

The sensor measures continuity of the lamp circuit. So, if the rear
lights still don't work after the new sensor is installed....then check
the integrity of the wiring harness at the left trunk hinge. Sometimes
the constant flexing will cause one or both of the wires to break or get
pinched and short out. If that isn't the problme then make sure that
the bulb bases are making good contact with their sockets and that the
socket ground wires are securely attached to the body; any small
corrosion here will result in faulty sensor operation.

Now, if you get the brake lights to work with the new sensor and you are
into self-abuse, open up the old sensor and check for cold solder joints
or burnt traces on the board. Usually you can resolder / fix the burnt
jumper and avoid buying a new sensor. Or, you can even wire around it.
Toyota used to make a $4.00 jumper that you could use in place of the
sensor (obviously, disabling the light indicator) but I have been told
that it is NLA. With a schematic you could easily wire around it.

HTH.


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Old 04 May 2004, 01:44 pm   #3 (permalink)
Jason James
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Default Re: 1991Toyota Camry Lamp Fairlure Sensor (The Expensive Little Yellow Box)


"Travis Jordan" <no.one@no.net> wrote in message
news:mqSkc.536414$Po1.293798@twister.tampabay.rr.c om...
> joecamry91 wrote:
> > On my Camry the rear lights where not working. I took it to a
> > mechanic he said it was the sensor. He took it out and was looking
> > for a after market sensor,he was unsuccessful. He told me that it
> > can only be purchased at the dealer. To make a long story short, I
> > got the sensor, I connected one wire to the sensor now the other wire
> > with a blue connector I don't know where it goes. Does any one know
> > where this wire goes? Also, I replaced all the bulbs, and I am still
> > not getting the signal light. Is it because I did not connect the
> > other wire from the sensor? Please help.
> >
> > P.S. Toyata Dealer Wants $190.00 for that stupid little yellow
> > box(Lamp Failure Sensor) They are such a Crook

>
> Sorry, but I don't remember the wire / connector colors and I don't have
> a schematic for my long-gone Camry. Maybe you should have your mechanic
> put it back the way he took the old one out?
>
> Anyway, this is a soft spot for the early models - and you may not be
> happy to hear that in some cases the sensor isn't the problem.....
>
> The sensor measures continuity of the lamp circuit. So, if the rear
> lights still don't work after the new sensor is installed....then check
> the integrity of the wiring harness at the left trunk hinge. Sometimes
> the constant flexing will cause one or both of the wires to break or get
> pinched and short out. If that isn't the problme then make sure that
> the bulb bases are making good contact with their sockets and that the
> socket ground wires are securely attached to the body; any small
> corrosion here will result in faulty sensor operation.
>
> Now, if you get the brake lights to work with the new sensor and you are
> into self-abuse, open up the old sensor and check for cold solder joints
> or burnt traces on the board. Usually you can resolder / fix the burnt
> jumper and avoid buying a new sensor. Or, you can even wire around it.
> Toyota used to make a $4.00 jumper that you could use in place of the
> sensor (obviously, disabling the light indicator) but I have been told
> that it is NLA. With a schematic you could easily wire around it.
>
> HTH.


I agree. For less than an hour's labor an auto-electrician could just wire a
bypass set of wires: one for brake, one for park, one each for left and
right indicator and one for reverse,....if most other cars get away with-out
this light-failure sensor box,...the Camry can too.

Like a lot of techinical 'advances': they are great *while* they are
working.

Jason


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Old 10 May 2004, 03:53 pm   #4 (permalink)
joecamry91
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Default Re: 1991Toyota Camry Lamp Fairlure Sensor (The Expensive Little

Travis, thanks so much for the information. The problem was due to a lose
bulb, the signal light works now. And The wire with the blue connector
just hangs, It does not connect to anything, I have a friend who has the
same car he came by my house and we looked at his car to see where the
wire connect to. We saw that it connect to nothing.
Again thank you very much.

Joe

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Old 11 May 2004, 08:30 pm   #5 (permalink)
joecamry91
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Default Re: 1991Toyota Camry Lamp Fairlure Sensor (The Expensive Little

Thanks for the info. Jason The problem was a lose bulb and the wire with
the blue connector just hangs it does not get connected to any thing.

Thanks again,

Joe

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Old 27 May 2004, 02:44 am   #6 (permalink)
NOSKiDD
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Default Re: 1991Toyota Camry Lamp Fairlure Sensor (The Expensive Little Yell

i dont know what cable ur talking about bc i havent had a prob with my
lights yet, but my neighb has a 94 or so civic and same thing was
happening, took it to a dealer for an estimate, they said he had to leave
the car overnight and who knows what the heck but it would cost $200 or
so, he came over to me, i suggested that he check the fuses and relay, and
bulb...some bulbs have 1 or 2 poles (the tips) if u have one then ur bulbs
does to things, it turns on when ur park lights go on, and shines brighter
when u apply the brakes, either way, check that out, whose knows, might be
a false connection so rub down the contacts to get a clean connection

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