Hello, I am in the middle of installing a factory EV button on the wife's '08 Prius. I purchased a button from japanparts and also ordered the connector 90980-10964 which I turned out to not need(This fits the older button pictured in the old writeups here on the PC). The button sent was 84720-47021 and they included the proper fitting connector 82824-21030 with it. The pins I harvested from the flasher connector under the steering wheel fit <strike>perfectly</strike>. I used 24gauge wire from a cat 5 cable and soldered into the pins and the 24gauge wire is the perfect fit. Need to go get some 3/32" shrink tubing. My question is, even after rereading all the install guides again, what is the orientation of the wiring on the factory button switch? Where do the Illumination + and - go, and where do the ECU trigger and ground wires go. I believe the ECU goes in slot 3, IL+ in slot 1 and the grounds in the other two. Can someone please confirm the orientation from the top of the plug with the button oriented properly. Thank you.
Thanks! I kept looking and found evnut's install that lists the order of the newer button wires and I just now got done. It works but was a pain, literally. Was sporting three bandaids at one point, the wire took a while to fish, but the real difficulty was getting the pins fully seated. I gave up on the ones in the plug and they are sticking out a sixteenth of an inch or so. It lit up and the button triggered EV so done, just not happy the pins aren't seated. I used up all six I harvested from the flasher after breaking a wire off trying to push it's pin into the plug. I also copied shaving off the key on the sides of the button so I could put it in the far left hole.
Pin 1 - Switch ground - to a grounded bolt somewhere. Pin 2 - Light ground - tap into gray wire on dimmer. Pin 3 - Light +12V - Rheostat controlled - tapped into red wire on dimmer. Pin 4 - Switch positive. Connect to pin 27 on the ECU Since I can't post link yet here's the wiring order for the button plug.
Bumping as I'm currently working on this and can't get the pins to seat in the H14 connector.I might have too much solder...I will try again next week. Good to have the pin outs on hands for others that are working on this. Cat 5 cable is a great choice. Key notes. The white strip on the connector which allows you to slide the new connector in only opens about 1mm. The new pin that you harvested from the steering column actually sinks below the back of the connect. not flush.
