low voltage at key switch?

[117bigdog]

have a 05 chopper and I'm trying to hook up the keyless box to the key switch. I tested for which one had power and found that the power wire only has 9 volts. Checked the batt, it was 12.5, checked plug under fuel tank and 9 volts there also. I traced it back to bdm box with 2 big plugs in it, power coming in is 12.5 and coming out was 9 volts. Don't think its suposed to be like that. Anyone know about this out there??

 

[Raywood]

have a 05 chopper and I'm trying to hook up the keyless box to the key switch. I tested for which one had power and found that the power wire only has 9 volts. Checked the batt, it was 12.5, checked plug under fuel tank and 9 volts there also. I traced it back to bdm box with 2 big plugs in it, power coming in is 12.5 and coming out was 9 volts. Don't think its suposed to be like that. Anyone know about this out there??

It's intentional. We have low voltage systems. Reason for the itsy bitsy wires rather than standard 14ga of most wiring harness.
This is another reason you just can go throw on new lights, horns and other things without t he proper relays and such.

Just be careful with your new switch. If you need something out of the manual just yell.
Later,
Ray

 

[117bigdog]

I tried to install the same kit as pissed did. he said that his worked great. The kit is for 12-24 volt systems. I thought there was something wrong with my bike since you have 12 volts going into the computer and 9 coming out. oh well

 

[05chop]

IM not sure what bike pissed has I think pre 04.First off I was going to do this mod also until I did a check with a DVM (test lites dont work here) and found that bd is using ground circut to power up our bikes.Kenworth did this to there trucks a while back.Arc welders played games with them too.Now on the BD EHC if you put 12volts to the key switch from the controller that you bought looks like to me you will trip the fuse inside the EHC.Then you will have to get the fault code removed from the dealer to start your bike.Dont get rid of your controller just yet.05chop

 

[WB Cycles]

We talked about this in another thread, but when the dealer installed the Scorpio alarm on my 04 Chop, they blew the EHC. Had to do a warranty replacement because of it. They specifically said it was due to the "ground circuit" issue that 05chop mentioned.

Not saying it can't be done, but that this has been a sticky point with BDM from early on.:bang:

 

[117bigdog]

I never put 12 volts to it. At back of key switch there is 2 wires, One had 9 volts , the other 0. When you turn key on it it puts 9 volts thru other wire then turns bike on. I just tried to hook it up with using the 9volts to send power to new remote control box for power then the other turn on wire from box to other wire on key switch. I guess it would of worked if the bike was 12 volts there. But my kit works from 12-24 volts. All that work for nuttin.

 

[go4dave]

Hey 117,, i've bought the same kit... i havn't installed it yet,, been waiting for the wheels to return.
Anyway,, just for Shits&Giggles..... take a 9 Volt battery,,,, put it on the HOT side of the keyless remote..... hook-up your test lamp. (just like you were going to wire your bike) ... then use your remote button,,,,,, see if power passes thru??? It may work fine. That's how i was playing it out...... it's only a subsititute for the key, right?

I never put 12 volts to it. At back of key switch there is 2 wires, One had 9 volts , the other 0. When you turn key on it it puts 9 volts thru other wire then turns bike on. I just tried to hook it up with using the 9volts to send power to new remote control box for power then the other turn on wire from box to other wire on key switch. I guess it would of worked if the bike was 12 volts there. But my kit works from 12-24 volts. All that work for nuttin.

 

[05chop]

We talked about this in another thread, but when the dealer installed the Scorpio alarm on my 04 Chop, they blew the EHC. Had to do a warranty replacement because of it. They specifically said it was due to the "ground circuit" issue that 05chop mentioned.

Not saying it can't be done, but that this has been a sticky point with BDM from early on.:bang:

Nelson merry x-mas 05chop

 

[117bigdog]

yea I have it wired into my bike already, so if you lost your remote you can still put the key in and turn it on. I have to remove it to do what you are saying. Have you tried that yet since you haven't installed it?

 

[117bigdog]

05 chop what thread was that on that you discussed that, about the "ground circuit"?

 

[go4dave]

not yet,,,, 1500 miles away from my bike right now,,, hanging with my parents for Christmas..... and of course,,, my wheels showed up last Friday.... i'll be home Friday this week.... so i can mess with it then.
I was just gonna follow PISSED wiring diagram..... i never gave it much thought,,, considering,, it was only passing voltage thru...... (similar to the key)

When i get home,,, i'll do the 9 volt idea.... and let you know... now i am curious.

Have a Merry Christmas!! :2thumbs:

yea I have it wired into my bike already, so if you lost your remote you can still put the key in and turn it on. I have to remove it to do what you are saying. Have you tried that yet since you haven't installed it?

 

[117bigdog]

looking at the box for the controller it says 12-24 volt so I don't think it will especailly since mine is on the bike already and not working. at least it was only $20

 

[05chop]

117 BIGDOG Think this one deal out before you try something new.Let some more guru that they have on this board chime in! JUST dont want anything fried at this point. 05chop

 

[go4dave]

sounds like he has not had a problem.

but then,, what do i know........ i still use my blinkers when i drive :2thumbs:

 

[05chop]

Like i said from what i get pissed has a 02 boxer bd.117BIGDOG is working on a different animal than what pissed has.You know I mite be wrong maybe pissed has a newer model. pissed??? 05chop

 

[117bigdog]

i think your right 05 chop. different electrical system, maybe santa can help me out tonight!

 

[Gas Man]

We talked about this in another thread, but when the dealer installed the Scorpio alarm on my 04 Chop, they blew the EHC. Had to do a warranty replacement because of it. They specifically said it was due to the "ground circuit" issue that 05chop mentioned.

Not saying it can't be done, but that this has been a sticky point with BDM from early on.:bang:

For any of you wanting to hook up your "ignition kills" to just enhibit the starting of the bike... I have the solution. I don't like to post it in general open forum but can PM you the info on how to do it... I did it with my scorpion alarm...

 

[pisssed]

05 chop Your correct I have an 02 boxer. Like Ray said the system works off a low voltage system (i didn't know they had changed that for the key circuit and I apologize to the ones that have got this module and it wont work)


117 and others if You have 9V at one contact with the key off then the switch supply's that voltage to the module to power on the system.If it were me I would install the key less module and see what happens, I would say with 9v it should work. Couldn't hurt anything what You have coming in is what Your giving out when the keyless module is activated.....IMO

 

[117bigdog]

I have it hooked up and it doesn't work. probably to low of voltage. haven't pulled it off bike yet to see if it works on 12 volts or more. If it is to low of voltage which is the problem I will hook it up to turn on my led lights. merry christmas everyone!

 

[Ohmster]

Did you receive a schematic with this keyless switch? You should have more than just one input and one output on this "box". At the minimum you should have an input and output for the key circuit and then a input for 12-24 vdc and a ground output. The 9vdc you are seeing should not be used to try and power this keyless switch box. That is a very low current "logic" voltage from the EHC seeking a ground. When that low current voltage goes to ground it tells the controller in the EHC to enable power to the motorcycle. My guess is you need to reinstall it with the power coming from the battery (fused prefered) and a ground from the battery or frame. Then the ignition switch wires should go on the input and output points that will enable or disable the key switch circuit.