S.O.S. - 99 Corolla Rear Window Defogger

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It's not working. Other electrical devices of the car are functioning, so it couldn't be a fuse problem, could it?

Please help!! Thanks to you all!!

:ohcrap:

posted by  Redideal

All I can say to you at this time: Read a few of the other postings on here and see how we do things, then come back when you have about 30 times more information if you want any type of quality help with your quandry. Oh, and I'll answer your ONE simple question that you asked on here with an answer as simple as the question: YES :banghead:

posted by  cmeseadoin

Thanks for your advice. I just checked & there's nothing related to this specific problem. I took the car to the dealer :evil: this morning & they charged $90 CDN per hr for the estimate. I was told the estimate time would be approximately 2 hrs. I'm very upset about this coz that's about $200 with taxes just for the estimate.

:ohcrap:

posted by  Redideal

Well then give us some more information as well as what you are capable of doing with cars so that we might help you better. Automotive problem diagnosis and troubleshooting requires a little more than a brief description of the problem. :hi: Have you done any troubleshooting at all? If so, what have you done? Have you eliminated anything from being the root cause? Tell us more. We would love to help but need information.

posted by  cmeseadoin

I am not familiar with the technical stuffs of cars, to be honest with you. It all started 2 days ago, after I took the car to the dealer for an oil change. I did not notice the problem until I went out that same evening when it became rainy.

:ohcrap:

posted by  Redideal

The only thing I can think of is that either there is a fuse problem, it is simply unhooked, or that there could be a problem with the motor for rear defrost. my 99 Alero had that same issue and I rectified it quickly because it was just simply unplugged, try and save yourself 200 and check that first. :smile:

posted by  Flame Roller

This is not meant to come across as sarcastic, but I'm sure it will. Do you have a owners manual? If so, look in the index under fuses and high current fuses.The high current fuses will be located in the engine compartment, I would guess this where the fuse is for your R/W defroster. :read: If you don't have a owners manual, do you have a test light or volt-ohm meter, and can use either? If you have none of these, you will have to take each and every fuse (rated 15amp and higher) out and inspect it, to see if it is blown/open. Should be very easy to do for 90cnd (how every much that is) remove each one, have some type of light behind it and you can easily tell if it's good or bad. If you understand none of the above, do yourself a big favor and take it to the garage. How much rear window scraping can you do for 180 cnd ? :laughing: This may not help, but it should guide you :thumbs:

posted by  lectroid

DUH!!!! :oops: Obvious and most simplistic first. Didn't even think of it being disconnected :thumbs:

posted by  lectroid

Um, wait a second, a rear window defroster has a motor???? DAMN, I learn something everyday!!!! :laughing:

Bottom line is this: You have an electrical problem short of the unlikely scenario that the resistor grate in the windshield is blown or damaged from the removal of stickers via scraping/etc. Follow the advise given about checking all fuses. Check the switch too for functionality. You can actually check for current AT the window as well by grounding the ground on a test light and using the pointer end ON the actual lines of the rear window. (INSIDE the window, not outside, LOL) If you don't know how to do any of that, OR all of that data comes back clean....with your level of expertise, take the car into the shop man. It's gonna cost a few bucks but you might have to do it. Do you have a friend that knows cars? Your father.....etc???

posted by  cmeseadoin

Thank you very much!! I shall try it this Saturday morning. Hopefully, it's not gonna rain / snow between now & then.

I am new to this website. Can't believe how helpful you guys are!!!! :clap: Thanks a big bunch!!!

posted by  Redideal

I shall try what you suggested as well! Thank you very much!!! You guys are just great!!!! :thumbs:

posted by  Redideal

Well after all, we are the best online car-forum out there!!! :driving:....and you're welcome. Don't forget that we like to hear back as to whether you get it fixed based off the help you got here! :mrgreen:

posted by  cmeseadoin

It was raining again yesterday and I switched on the defogger without realizing it's "broken". The "miracle" happened before my eyes!!! It's working! It's working!! Totally unbelievable!! :orglaugh:

How it became broken & how it's "fixed" will remain a mystery........ :roll:

In any case, Thank you for all your help!!! You :rock:

Have a great weekend!!!
:)

posted by  Redideal

This type of thing reminds me of discrepencies found by pilots during my many years working fighter aircraft. "Defroster is inop in OFF position". Indeed. :banghead: You wonder why we always said it takes a college education to break them and a high school education to fix them.

I seriously doubt the problem is "fixed", more likely the only problem was a screw loose behind the steering wheel.

posted by  vwhobo

Maybe it was similar to a Windows problem :laughing:

Occasionally my car would die on the freeway for no reason.
You would have to pull over to the side of the road, close all of the windows,
shut off the car, restart it, and reopen the windows before
you could continue. For some reason I would simply accept this. :doh: :laughing:

posted by  lectroid

...as in opposite of forward? :thumbs:
.
.

posted by  BavarianWheels

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