Factory EV switch installation

aw, thanks Bob! so the illumination is working ok for you?

if there is any demand we will make some more at some point soon. right now we have some personal things that are taking a lot out of us so it's hard to find the time for it.

 

Ok, now I'm confused about the situation with the 06 OEM EV switch:

- You say you paid $20 for the wiring harness. Does the $69 "kit" from Sigma only include the switch itself? On their website they make it sound like it includes everything you need to connect the switch.

- You say you got it from galaxee. How did you order it?

- Do I then need to spend 20+69=$89 for the entire 06 OEM (JDM) EV setup? Note: I would rather go as OEM as possible with the setup, I have no desire to be cutting into wires I don't have to.

- And to be clear, this still doesn't include any kind of EV indicator light for the North American Prius, right?
(I'm assuming you only get the EV button itself to light up.)

Thanks.

 

<div class='quotetop'>QUOTE(Ari @ Sep 8 2006, 12:29 PM) [snapback]316402[/snapback]</div>

The sigma kit has everything but the wire taps and a long wire that goes from the button to the ECU.

No indicator light on the dash but you do get the button to light up when you turn on your headlights.

 

Galaxee, are you still selling the "wiring kits" for the JDM EV button from Sigma? I'm also trying to find the step by step install instructions, are they still located somewhere here on the forum? Thanks!

 

I want to ask my dealership if they will install an EV switch for me. Anyone know the part # for an '08?

 

<div class='quotetop'>QUOTE(JoeyJoeJoShabadoo @ Nov 15 2007, 12:41 AM) [snapback]539775[/snapback]</div>

Not a chance. They would be voiding your HV Battery warranty and assuming some major liability. That is DIY at your own risk. Doubt they know much about it, other than it's being done. Possibly.

 

Has anyone experienced any issues by installing this? I am sure it will void my warranty, and as soon as I install this, my hybrid engine will just happen to go on the fritz, and when I go in with my warranty, I can hear them saying (it was because you modded ur prius with the ev switch) Has anyone checked to see if this button voids your warranty?

 

<div class='quotetop'>QUOTE(The Prius you love to Hate @ Nov 15 2007, 12:46 AM) [snapback]539857[/snapback]</div>

Warranty issues (especially regarding the HV battery and EV mode) have been discussed a lot on this forum. Sounds like the consensus is that Toyota would have to prove beyond a doubt that any damage you claim was caused by the EV button. If you install the OEM EV button (from Sigma) and dont use the dimmer, it is rather easily removable and the dealer would have no way of knowing it had ever been installed, unless the computer can somehow tell the tech if it's ever been in EV mode that we aren't aware of.

 

<div class='quotetop'>QUOTE(theforce @ Sep 8 2006, 11:38 AM) [snapback]316409[/snapback]</div>

So if i want to install an EV switch and be as safe as possible, where i can remove it when i bring it to toyota, what else do i need to buy aside from the EV switch kit from Sigma? Do i need to buy wire taps and a wire for the ECU connection? Where do you find those?

 

<div class='quotetop'>QUOTE(JoeyJoeJoShabadoo @ Nov 15 2007, 07:23 PM) [snapback]540279[/snapback]</div>

I have absolutely nothing to add to this thread.

I just wanted to say that you have an awesome screen name.

Though, you did leave out "Junior"

 

<div class='quotetop'>QUOTE(Chrome @ Nov 15 2007, 07:34 PM) [snapback]540283[/snapback]</div>

Hahaha, BAAH I knew I forgot something when i made it. Oh well too late now... Thanks for noticing!

 

Ok, so where can I get the actual switch to mount for an 08?

Thanks

Jeremy

 

Cool, Thanks alot for the fast reply!

 

To be as "safe" as possible, don't install one at all obviously.

Some clever people are using the "cruise control cancel" switch function as the "EV button", the mod video is listed at the top of this page.

Edit: This thread is over two years old, is there any chance that someone (galaxee) is still selling the wiring harness thing?

 

I wanted to see how this would work so I simply put a wire in the plug and pluged it back into the ecu then started it up and grounded it. It does shut off the engine (whohoo!) but I have a few Qs.

!) How long should the battery only mode last? (I got about a mile and the ice kicked on when the battery symbol went brown colored. (indicating the bat was low and needed to recharge)

2) Should the battery ever go to all full? (mine never has)

 

1) About as far as you got, if that far. For the sake of fuel economy, you want to avoid using EV for propulsion except for short segments where running the ICE would be inefficient -- i.e., around your driveway, short hauls through parking lots, etc.

2) It will, but typically only after an extended period of regenerative coasting or braking. The car protects the battery from overcharging by aiming to keep it at 6 bars, but allows a little headroom to capture more from regeneration. After it hits 7 or 8 bars, it will give greater preference to battery power than usual to bleed it back down to 6.