What's the deal with the Back Window ECM? - Toyota Tundra Forums : Tundra Solutions Forum

MadStacker · #1 (**permalink**) 10-08-2009, 03:39 PM

So I have replaced our rear hatch window motor twice in two years. Then I found the TSB on it. I plan to remove the window stop, but the TSB also mentions replacing the ECM on the back hatch with the new part numbered unit. What's different? Can I run without the stop with the old ECM? And why the hell is there a computer for the back hatch? I understand that it makes it so that the wiper won't work without the window up, but a couple of micro switches and limit switches would have done the same thing. Way too many computers!
Thanks,
Jerry

pewter05 · #2 (**permalink**) 10-09-2009, 07:49 AM

I didn't replace the ecu or the motor, just removed the stop and smacked the motor with a hammer a few times. I make sure to use the window once a week to prevent any jamming and it's been working fine so far.

MadStacker · #3 (**permalink**) 10-09-2009, 09:30 AM

Pewter05,
Thank you. If I get a chance today I'll remove the stop. By the way, does your 'Yota have the overhead display? If so, does yours get warm/hot to the touch if you touch the actual readout area? I have a seperate post about this, but only one response to it.
Thanks!
Jerry

pewter05 · #4 (**permalink**) 10-09-2009, 10:38 AM

Yes, I have the overhead. I'm not sure how warm it gets, but I imagine all the bulbs help generate some heat. Does it get hot during the day with the lights off?

MadStacker · #5 (**permalink**) 10-09-2009, 03:59 PM

Yes, even with the display turned off it is still quite warm. I need to check that answer. I remember turning it off and checking it 20 minutes later on a trip and it was still warm, but I'm not sure how long it will hold heat in the plastic. I need to drive it a day with it off completely and see for sure. I was surprised that the digital display could generate so much heat (if that is all that is really happening)
Thanks,
Jerry