Reprogramming the '03 RX1 Handwarmers

 

First, I need to give credit where credit is due. Lazybastard was a lot of the brains behind this fix.
 

Parts:

You need an Omron H3YN-2-DC12 timer (or one that functions the same). You can buy it here: http://www.e-sonic.com. This is a Canadian company and with shipping it worked out to $65 US. I'm hoping someone on here can find it cheaper.

I HIGHLY recommend buying  Omron part PY08. This is a socket to plug the timer into. This allows you to do all of your wiring to the socket and not risk breaking the timer.

The timer has dip switches on it and the need to be set as follows: The time range should be 1 min. and the operating mode should be "interval".

The settings would be like this:
Time Range: Top switch should be to the left or towards the rear of the switch.
Bottom switch should be to the right or towards the front of the switch.
This will set the timer to one minute. From there turn the dial to aprox. .2 (point two).

Mode:  Top switch should be to the right or towards the front of the switch.
Bottom switch should be to the left or the back of the switch.
This will set the timer to interval mode.

The dial on the front should be set to the .2 setting. You can fine tune this to your liking.

What this timer does is basically hold down your hand and thumb warmer buttons for the amount of time you set the dial for. When set at .2 it holds down the buttons for .2 minutes (12 seconds) as soon as you start your sled. I have not tried a lower setting but in theory you could have it hold down the button long enough to only turn the warmers down partially, say half way, if you wanted.

Now here is how to hook it all up:

You will notice that the socket and timer have number pins. You will be connecting wires to these by either soldering or using wire terminals. I took the lazy/easy route and used the wire terminals.

Remove the handle bar cover and foam pad. Each warmer has three wires going to it.

On the thumb side find the pale green wire with Blue stripe. SPLICE in to that wire and connect it to pin #8. Notice I said SPLICE. Do NOT cut the wire. Simply use splicing terminals. If you do disconnect or cut that wire you will lose your ability to adjust the warmer manually. Next splice into the black wire and connect it to #12

Now move to the hand warmer side. find the Yellow wire with blue stripe. Splice in to it and connect it to #5. Splice in to the black wire and connect to #9.

Next find the Blue wire with the white stripe that connects to you headlight dimmer switch. Splice into it and connect it to #14. This is your power source. This keeps all the wiring contained in the handle bar area.

Next run a ground wire from one of the handle bar mounting bolts to #13.

#1 and #4 are not used. They perform a different function.

I used foam pipe insulation to help guard the timer then I zip tied it to the handlebars. I did it low enough that everything is covered back up by the foam and handlebar cover. You can not see anything on my sled and would have no idea it is there.

This works real slick. When you start the sled the display goes through it's normal diagnostics check then shows the hand warmer turned down. You do not see the thumb warmer being turned down, but it is. After a few seconds the gas gauge comes back on and all is normal. You still retain full manual control over the warmers

By: Spray25

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