Electrics rear heated window problem? - Civinfo
 
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post #1 of 13 (permalink) Old 8th February 2012, 00:05 Thread Starter
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rear heated window problem?

Frosty mornings have revealed what I think maybe a problem with my rear heated window, I think it is on permamently when the engine is running.

When there is frost on the rear window, without the button pressed the frost begins to melt around the elements in the glass.

Does anyone elses do this?
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post #2 of 13 (permalink) Old 8th February 2012, 01:12
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it comes on automatically when temp is below 3 iirc

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post #3 of 13 (permalink) Old 8th February 2012, 01:41
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Quote:
Originally Posted by julioarca View Post
Frosty mornings have revealed what I think maybe a problem with my rear heated window, I think it is on permamently when the engine is running.

When there is frost on the rear window, without the button pressed the frost begins to melt around the elements in the glass.

Does anyone elses do this?
Yes, it's normal as far as I know.
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post #4 of 13 (permalink) Old 8th February 2012, 01:57
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Quote:
Originally Posted by coste1l View Post
it comes on automatically when temp is below 3 iirc

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But only on the 2.2 diesel.
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post #5 of 13 (permalink) Old 8th February 2012, 10:47
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really how odd? another reason why blueish silver 2.2 non gt types' rule!

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post #6 of 13 (permalink) Old 8th February 2012, 12:21
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Quote:
Originally Posted by coste1l View Post
really how odd? another reason why blueish silver 2.2 non gt types' rule!

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Quote from the Wiki here;
On diesel cars the rear demister is automatically activated in colder temperatures. This is to put additional load on the engine, which causes the engine to reach operating temperature quicker, and overall be more economical.
This is not documented in the owners manual.
The orange light on the dashboard switch does not illuminate when this happens.
On other cars it is controled by the switch on the dashboard, but does have an automatic timeout function.
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post #7 of 13 (permalink) Old 8th February 2012, 12:52
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Yep, which means i have sod all radio reception until it is switched off again If you press the button on the dash twice (once to put the light on and then again to switch it off) the screen then switches off again. Another of hondas little quirks, but you still gotta love 'em!
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post #8 of 13 (permalink) Old 8th February 2012, 13:14
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Originally Posted by tomtank62 View Post
But only on the 2.2 diesel.
And some 1.8's.

Mine didn't do this from new, but after being serviced (can't remember if it was year 1 or year 2), The heated rear window would come on automatically in low temperatures, in the same way as the diesel.

I checked with the garage (Honda main dealer), and they reckoned there had been a software update applied to the car when it was being serviced.

Edit: found my post from 2008 in another thread about the auto/non-auto of the heated rear window. Car was serviced in March 2008, and the following winter noticed the auto function of the heated rear window.
http://www.civinfo.com/forum/283986-post194.html

Last edited by pjr; 8th February 2012 at 13:26. Reason: Added link to older post
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post #9 of 13 (permalink) Old 8th February 2012, 13:24
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The temperature that is is triggered to automatically come on does appear to vary. Several people (including myself) have seen it's effects when the outside temperature is < 10C
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post #10 of 13 (permalink) Old 8th February 2012, 13:47
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Probably an analogue thermistor somewhere meaning it varies from car to car.
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post #11 of 13 (permalink) Old 8th February 2012, 13:49
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Quote:
Originally Posted by julioarca View Post
Frosty mornings have revealed what I think maybe a problem with my rear heated window, I think it is on permamently when the engine is running.

When there is frost on the rear window, without the button pressed the frost begins to melt around the elements in the glass.

Does anyone elses do this?
I saw your post by chance & wanted to say thanks for asking this question! Mine does the same & I was all set to embark on a "stuck relay" investigation on the weekend! Didn't think to check the forum first...
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post #12 of 13 (permalink) Old 8th February 2012, 22:14 Thread Starter
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Cheers guys, I think this is a brilliant idea, never knew it came on automatically, saves a trip to the stealers and showing myself up...........
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post #13 of 13 (permalink) Old 8th February 2012, 22:37
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i once took a toyota back because the wipes wouldnt work.... turned out they worked like a light stalk!?

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