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Scion xA/xB 1st-Gen Drivetrain & Power Engine and transmission discussions...

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Old 04-22-2009, 02:21 AM   #1
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Default Rostra cruise control install questions

So, I got my Rostra cruise control today, and I've read the instructions several times, and seached here repeatedly:

1) Just how do you get the two 4-pin connectors on the wiring harness through the firewall grommet? I had a heck of a time getting my amp power wire through (the stupid strut-tower bar doesn't help things, either).

2) Since the diagram in the manual is unbelievably bad, how is the clutch switch mounted? A picture of it installed would work wonders for this.

Beyond that, the install seems like it will be fairly straightforward, even if it means I'll have to unbolt the driver's seat and lay upside down in the car for an afternoon.

Thanks in advance!
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Old 04-22-2009, 02:27 AM   #2
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its pretty straight forward when you get going i've done mine last year it was fairly simple
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Old 04-22-2009, 05:28 PM   #3
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I don't have a picture of mine, but it's fairly easy. For the clutch switch, there is a bolt that stops the clutch pedal from moving any farther up when you take your foot off of it. You remove that bolt and mount the switch in its place, so that it is pushed in when your foot is off the clutch. Hope that's clear enough... If not I can try to get a picture of mine.
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Old 04-25-2009, 07:18 PM   #4
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Default Cruise control installed!

Quote:
Originally Posted by Malaclypse
I don't have a picture of mine, but it's fairly easy. For the clutch switch, there is a bolt that stops the clutch pedal from moving any farther up when you take your foot off of it. You remove that bolt and mount the switch in its place, so that it is pushed in when your foot is off the clutch. Hope that's clear enough... If not I can try to get a picture of mine.
That bit of advice helped a lot. It's perfectly logical, but not entirely obvious from the instructions.

I spent an even three hours installing the CC, and it went pretty smoothly.

I learned a few lessons, which I hope show up if anyone else searches for info on this matter:

-Taking off the upper grille helped a lot, and gave me a lot more room to work around the throttle body.

-Having a strut bar is a huge PITA. I hate that thing.

-Taking out the driver's seat is a huge help in getting around under the dash. Plus, it's funny that the car feels like it's the size of a barn with that seat out.

-Inside the car, there's just barely enough room to get the clutch switch threaded. I'd have had an easier time if I had an extra set of hands to pull back the wiring harness a fraction of an inch.

-I gave myself all day. I don't have to be anywhere today, and the weather's great, so I wasn't in a rush, and had time to do everything right.
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Old 04-25-2009, 08:15 PM   #5
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i did my install in winter talk about cold and my car was outside too...
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Old 06-17-2011, 12:14 PM   #6
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How did you all get through Step #8--the power connection, I have a 2005 scion xb and have no idea how to find the Pin#6 wire for the 1N connection--is there any way just to come off the cigarette lighter for power?
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Old 06-17-2011, 03:27 PM   #7
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Quote:
Originally Posted by mreeves View Post
...-is there any way just to come off the cigarette lighter for power?

That is exactly what I did when I installed mine two years ago. I just spliced into the appropriate wire coming off the lighter socket in my xA.
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Old 06-17-2011, 04:05 PM   #8
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Default Rosta Cruise control

thanks for the reply frbl. Off the top of your head, do you know which is the hot wire for the cigarette lighter?
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Old 06-17-2011, 07:49 PM   #9
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I KNEW you were going to ask me that! ;^)

Unfortunately, my aging brain doesn't remember clearly from two years ago. But using a multimeter at the wire connections on the lighter socket you should be able to figure it out quickly. In fact, anyone here who regularly works with lighter sockets/power sources on cars should be able to give a quick answer.
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Old 06-17-2011, 08:59 PM   #10
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http://scionlife.org/Scion_Docs/2004...owerOutlet.pdf
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Old 06-18-2011, 08:08 PM   #11
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Default power supply for rosta cruise control

I ended up purchasing an add-a-circuit fuse that could just be plugged into the fuse box--the was so much easier and only cost a couple of bucks! Thanks for the help--just took it for a drive and the cruise control worked great!
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Old 06-18-2011, 11:04 PM   #12
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I did that (add-a-circuit fuse) when I put in an aftermarket remote lock. I wish I had done it for the cruise control.

Enjoy the cruise control. It was the best investment for the car I have made considering the amount of highway travel I do.

BTW, on early versions guys complained about wide speed variation, espcially going up and down hills. It was solved via micro switch settings inside the box. I think they set it correctly from the factory now, but if you see this (as much as 10mph differences) you might want to check into it either via searches here or elsewhere on Google or even call Rostra directly.
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Old 07-15-2011, 04:16 AM   #13
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Just wanted to post to thank everyone for their information. I ordered the cruise control on Sunday night, received it yesterday, and it is now in my 2006 xA. It was not too difficult. Works fine, but I haven't taken it on a long trip yet. That comes on Saturday.
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Old 07-15-2011, 04:16 AM
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cigarette, clutch, control, cruise, install, installation, lighter, pin, radio, rostra, scion, switch, upside, xa, xb


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