Toyota Camry: 1990 lamp failure sensor (brake lights out)

When your passenger compartment heater A/C fan is 'on' - the air entering
the passenger compartment is eventually forced through small openings in
your rear parcel shelf. The vent pipe you saw ducts the exhaust air coming
down from the car rear parcel shelf out below the driver rear fender. This
eliminates the problems you would have (in colder climes anyway) of having
warm, humid passenger compartment air entering the trunk and then condensing
on the cold metal of the trunk - leading to pools of water and ...
eventual... rust.

I have had a number of problems with my lamp warning sensor over the years.
My garage mechanic kept suggesting I just take a 1" X 1" piece of black
electrical tape and use that to cover over the warning bulb on the dash.
That is likely the easiest solution - however I would not listen. Come to
think of it - My wife tells me I never listen. I digress.....

To resolve poor ground I started by running additional ground wires from the
trunk lid to the car frame. That did not help!!

What did work for me (for 99% of the time) is replacing the bulbs with the
"higher quality" bulbs (longer life/heavy duty - whatever). I lightly
sanded the bulb bases and the inside of the bulb sockets then lightly coated
the bulb base with dielectric grease to ensure better base to bulb
electrical contact.

I occasionally still get the warning light after going through a car wash
..... no luck in spotting any water leaks - although you would think that
would be the cause. After maybe 1/2 an hour the light goes out and I am
happy... until the next time....

Hope this helps



"duggy" <com> wrote in message
news:127.204.17... 
wiring, 
I'm 
the 

What did work for me (for 99% of the time) is replacing the bulbs with the 
coated 
You can use more dielectric grease to help seal the socket from moisture
entering and not hurt anything. It is non-conductive so more is good to a
point. Don't put so much or get it so close to the glass on bulb it
will/could run into reflector due to heat from the bulb.
This might help but, any dielectric is better than none.

--
Hope This Helps,
davidj92

"davidj92" <com> wrote in
news:btppt0$9dif8$news.uni-berlin.de:
 

Thanks, guys. I'm not sure what the quality of the bulbs I bought is. I
got them at Pep Boys. I'll see if there are any better quality to be found
and try that grease. Do you buy that dielectric grease at an auto parts
store as well, or is that Radio Shack type thing?