Motion override switch 2006

I've certainly had my fair share of DOH moments in the past, so I can just imagine the sinking feeling in your stomach... Coincidentally, I installed this same hack today as well as the anytime reverse camera mod. Mine went a bit smoother.

FYI, for those that are curious, no soldering is needed, I was able to accomplish it all just using those telephone taps and splicers you get at Radio Shack. Even the diode was tapped in this way... One thing I hadn't though about, though, was that for the motion override you normally want the switch "on" (closed), but the anytime reverse camera is the opposite, you normally want the switch "off" (open). So with both hacks off one switch was facing forwards and the other facing backwards. That won't do! I had to pop it apart again and flip one around so they both faced the same direction.

 

OK, I'm really sorry in advance if this is a stupid question, but where are the instructions for doing this? I would really like to, but I require detailed instructions, and anyone who could offer a link to some, or a .pdf file would be wonderful.

 

The most detailed i've found is: http://evnut.com/prius_speed_wire.htm

If you're at all technically/electrically minded (and if you know enough to work a soldering iron you should be), then those should be enough to get you through the mod.

a note of advice: hook all the wires together (without soldering or permanent attachment) and test the switch, make sure it works with the setup the way you have it - if a diode is pointing the wrong way or something, it'll suck to have to take it out and redo it.

 

I have Coastal's Auto-Lock, and when I installed the BT override, the doors locked right away (instead of 16mph). I used a push-on/push-off button, and evidently if I start the Prius with that button to OFF, it messes with the locks. If set to ON, it worked fine. It scared me until I figured it out.

 

Bob, in case you're curious, you seemed to have cut the speed sensor wire to the HV ECU. The other purple wire seems to connect the cruise control switch to the HV ECU.

At least you didn't ruin your spoiler backing out of your garage with the hatch still open trying to test your mod!

 

I am having problem with my Bluetooth, that I can not dial phone by name, access phone book etc. I posted in the forum and I got the answer from IsrAmeriPriusand that lead me to this thread.

Thank you everyone for the guidance how to bypass the Speed Wire.

I am wondering if we can do the following to eliminate the switches???

Find the Speed wire that feed to the Bluetooth unit:

We measure the input of this wire when car is not in motion (voltage, Ohm etc...); we then by pass this wire and feed our own Dummy Speed Wire in no motion state to the Bluetooth unit. We need to make sure the the Speed Wire is not in serial to feed other unit, if it is inserial to feed to other unit, we have just by pass at the Bluetooth unit and reconnect Speed Wire back to other unit.

If this works, we do not need to install switches and interfere with others unit that use Speed Wire.


Case 1: Speed Wire only feed the Bluetooth Unit.

-------Speed Wire--------Bluetooth Unit

Solution:

-------Dummy Speed Wire--------Bluetooth Unit

***************************************************************************


Case 2: Speed Wire feed the Bluetooth Unit and other unit in Serial.

-------Speed Wire--------Bluetooth Unit---------------Speed Wire to other unit----

Solution:

-------Dummy Speed Wire--------Bluetooth Unit

-------------Speed Wire--------Speed Wire to other unit---------

Let me know if my theory is wrong or it will not work.

Thank you.

 

Keep in mind that the BT speed wire also sends the signal to the Consumption screen (the 5-minute information), the Energy screen (the turning wheels) and any audio lockouts (message on the FM, and, IIRC, the MP3 information). If you want them to be not affected you'll have to make sure where to put that dummy wire.

 

Dumb question: DICE?

And do you have pics of this mod? Thanks.

 

<div class='quotetop'>QUOTE(TJandGENESIS @ Nov 12 2006, 01:07 AM) [snapback]347742[/snapback]</div>

DICE is an iPod integration system (like VAIS). It connects to the back of the radio and you attach your iPod to that. It allows you to control (and display) it using the MFD and steering wheel. It also has an AUX input, which is handy if you don't have a 2006-2007. A search will tell you about both the DICE and VAIS.

As for pictures, there's not much to show. I have it buried behind the right A/C vent cover (it's in the lower right corner of the picture), so my iPod can sit in the lower glove box.

 

<div class='quotetop'>QUOTE(aaf709 @ Nov 11 2006, 10:31 PM) [snapback]347722[/snapback]</div>

What if the car is without Bluetooth (package 2 and below)?? If we have schematics for both Bluetooth and Non Bluetooth versions, we might figure it out!!

 

my 2 cents...


I installed my speed sensor switch a couple days ago. I just cut the two speed sensor wires under the center/passenger vent, spiced some extra wire for slack, connected it to a switch I picked up at Radio Shack, drilled out a hole in the side of the top glove compartment, put the switch in, and popped the vent panel back on. Total process took less than an hour.

PS: I just used electric tape in the splicing process .. I was just too lazy to go anywhere.

 

<div class='quotetop'>QUOTE(Prius07Pkg4 @ Nov 11 2006, 09:19 PM) [snapback]347679[/snapback]</div>

The answer to this part of the equation must be zero. 'Cause that's what a switch does, it cuts the circuit. The fact that a switch works means the nominal "not in motion" state must be zero voltage, infinite resistance. Or, to be more accurate, that the bluetooth unit doesn't care if it is zero/infinate and that's good enough.

 

After cutting the TWO wires, does that mean that you add TWO switches, one for each cut wire? Thanks.


<div class='quotetop'>QUOTE(Branden Henner @ Nov 15 2006, 04:05 PM) [snapback]349741[/snapback]</div>

 

<div class='quotetop'>QUOTE(Mr. Zorg @ Nov 15 2006, 03:45 PM) [snapback]349831[/snapback]</div>

That could be true. But the question is, why we do need two switches for this??

 

<div class='quotetop'>QUOTE(marcoinpb @ Nov 16 2006, 09:08 PM) [snapback]350693[/snapback]</div>

Or a single DPDT switch, which'll control both at once. Some have used magnetic switches (one for each) also.

 

<div class='quotetop'>QUOTE(aaf709 @ Nov 16 2006, 11:24 PM) [snapback]350699[/snapback]</div>

http://priuschat.com/index.php?showtopic=25294&st=0#