trouble shooting heated wipers

[hankinid]

Iirc, the Pilkington I had installed last summer had 3 wires going to each side of the ws.

Asking Safelite in Boise about Land Cruiser ws installation gets you a deer in the headlights. I found a local guy used by both Toyota and Lexus here...he also does Rover, MBZ, etc. stuff. He suggested Pilkington which is what I wanted. Work was beautiful. No wind noise, no leaks, everything works.

Cost out of pocket was $100. Insurance handled the rest. North of $300 sounds high if you've got glass insurance...if not, I'd check it out. It costs us ~ $100 a year, covers a 100, a 200, and a Dodge 2500. We seem to make money on the deal since Idaho is a lot like Texas...you'll need a new ws every couple of years.

 

[c4xplsv]

We have a 2014 and live in Phoenix so snow and ice aren't really a part of our lives. We were up north in Williams with the kiddos and the Polar Express train and it snowed the night we were there. The next morning I actually got to use the windshield wiper heater for the first (and maybe only...lol) time. It was pretty cool to see it work - I assumed it did but obviously never tried it.

 

[linuxgod]

Does anyone know how the wiper de-icer is actually wired? When I bought my 2013 the windshield was cracked. The dealer replaced it, but the wiper heater has never worked while I've owned the truck. The fuse is fine, and I popped the cowl off and it appears to be wired up, but I have no idea if the wiring is correct. The interesting thing is that the Toyota factory harness has 2 wires but the windshield appears to have 3 (and the windshield harness actually had more but 3 of them are unused, which makes me concerned the replacement guy just clipped the wires).

Here's the Toyota wiring diagram. It looks like the Toyota wiring only has Black and White+Black stripe, but I'm wondering what a Toyota windshield has coming out of it and if this is a defective XYG windshield (yes I realize it's Chinese... now) or a poor wiring job.

 

[Sandroad]

Something's goofy with that. It looks like the black protection sleeves didn't get slid back up to there intended location where the wires go under the windshield. And, I don't think Toyota would have terminated unused wires with shrink-tubing. Hopefully someone will have taken a cowl off and can let you know what's right.

 

[linuxgod]

I wouldn't think so either. Yeah I'm hoping someone around here has done this. I haven't had much luck googling for any windshield wiring and aside from the TIS/GSIC diagram above I don't have anything that explains what the wiring is supposed to look like between the connector and the windshield itself.

It was difficult to see under the windshield but it doesn't appear that those extra wires were ever actually connected. I'm wondering if maybe it's a default Toyota 4-pin harness that XYG uses for all (many?) of their Toyota windshields and then they only connect up the wires that would matter to the specific windshield? It looks like the extra wires are the same colors, as if some windshields might have two separate elements?

Stupid aftermarket crap. Also the cowl makes a squeaking sound rubbing the bottom of the windshield when it's cold out and I'm on really bumpy roads, which makes me think the windshield is a fraction of a mm thinner than stock.