Dead Dog in the road, Help.

[Sparks]

She ran to my friends house this morning then died and won't start. I have plenty of juice and all the lights work except for theose two ittle LEDs (one gren one red) on the little block on the battery. The bike will turn over fine but no fire. On an 03 chopper what is that pesky little block called? No LED lights means no power to something in that little black box but it is sending juice to the starter. I have no manule for it so I'm kind of stuck. Any opinions?

 

[Sparks]

I took the part number off that little box and it's BD4121-1S with 0304 under that a little lower.

 

[PROFLYER]

I'm guessing that box is your EHC...it may have died. If so, I'd jerk the fucker and do a thunderheart system or something similar and get away from this proprietary BD crap

 

[Sparks]

I'm guessing that box is your EHC...it may have died. If so, I'd jerk the fucker and do a thunderheart system or something similar and get away from this proprietary BD crap

No it's not the EHC that's about an inch and a half wide by 5 inchs long with the entire wireing harness plugged into the bottom of it. This is a little box with 2 LEDs and just a 4 wires, one to the pos of the battery, one to the neg of the battery, one to the starter and one to the EHC.

 

[hoat]

you out of fuel?

fuel fire then electronics in my diagnostic tree

 

[KnotSo]

Sparks, can you get us some clear pics? :2thumbs:

 

[dogvet]

Its an ignition / start module. Red LED isa for the starter function and the yellow is for ignition switch functon.

The LEDs will indicate a short or open curcuit. Open circuit the led comes on solid, shorc circuit the led will flash real fast. when the bike is first started, the yellow LED should come on solid shince the headlight function is disabled during starting and the module doens't detect enough current.

Is the red led on the ignition module lighting up? If not, your not getting power to it.

 

[Sparks]

Its an ignition / start module. Red LED isa for the starter function and the yellow is for ignition switch functon.

The LEDs will indicate a short or open curcuit. Open circuit the led comes on solid, shorc circuit the led will flash real fast. when the bike is first started, the yellow LED should come on solid shince the headlight function is disabled during starting and the module doens't detect enough current.

Is the red l;ed on the ignition module lighting up? If not, your not getting power to it.

No it has no lights at all but the starter will turn over the enginge just fine. That part was weird, when I turn on the key I should get a red light at least?

 

[dogvet]

No it has no lights at all but the starter will turn over the enginge just fine. That part was weird, when I turn on the key I should get a red light at least?

Depending if the sensor is in the window on the rotor cup or not will determine if the light comes on or not, but cranking the bike should make the led on the ignition module flash. Is power present on the red wire at the coil?

 

[Sparks]

Depending if the sensor is in the window on the rotor cup or not will determine if the light comes on or not, but cranking the bike should make the led on the ignition module flash. Is power present on the red wire at the coil?

I will check as soon as I get home from work (it's luch time) and let you know. Thanks for the help I really appriciate it. Do you tech for BD for a living or is it a hobby? If my ignition/start module needs replaced I would like to get a ballpark price for the part.

 

[ohio dog]

cam ignition sensor, Coil, or EHC 12volt output to igntion module could be problem. Check harness that runs along frame from points cover and make sure plugged in. Also check three wires that connect to coil.

Are you getting fuel? Could be petcock filter is full of debris.

Do your headlights and horn work? Where is battery voltage...12.8 ish?

There are alot of us that have went/ or are going through what you are. there is a ton of useful knowledge on this forum.

 

[dogvet]

I will check as soon as I get home from work (it's luch time) and let you know. Thanks for the help I really appriciate it. Do you tech for BD for a living or is it a hobby? If my ignition/start module needs replaced I would like to get a ballpark price for the part.

I can't say whether I've ever seen a bad start module. I've seen em get hot and crack and still work. Hangin around this site is kind of a hobby!
keep us posted on what you find.:up:

 

[LARS]

I gotta say,I can problably get by on what I know about bikes,but it's sure nice to know that if it's over my head their are guys here that might be able to bring it back into reach,Sparks sorry I can't help you out bro.Later,Good luck

 

[Sparks]

OK here is the verdict, I have head/tail lights, blinkers and brakes. 12+volts at the red wire at the coil and no spark at the plugs. Would a bad coil leave the leds on the ignition/starter relay dead because of an interupted or incomplete curcuit? any body know how much BD will ream me for a coil or could I get away with any HD style coil since it's an 03 and all the stuff wasn't proprietory? Also are these single or dual fire coils?

 

[Sparks]

Have you talked to hpcustomcycles.com?

Yes as a matter of fact I have. They gave me a price of $85 and change should it end up to be the ignition/starter module. It does'nt sound like it is although I don't have a clue how all these new electrical systems work. Would a bad module make the coil look bad or would a bad coil make the module look bad from a diagnostic standpoint. Ricky down at HPCC is a good guy and I know he'll do me right on parts as long as I can find out what part to buy. Man I sure miss my old shovel when everything was simple and logical and there were no coumputers involved!

 

[haze324]

OK here is the verdict, I have head/tail lights, blinkers and brakes. 12+volts at the red wire at the coil and no spark at the plugs. Would a bad coil leave the leds on the ignition/starter relay dead because of an interupted or incomplete curcuit? any body know how much BD will ream me for a coil or could I get away with any HD style coil since it's an 03 and all the stuff wasn't proprietory? Also are these single or dual fire coils?

Out of my 03 Pitt service manual it says:

Recommended Coil: use one dual output coil with primary resistance of 2.8 to 3.5 ohms such as DYNA part no. DC6-1. or part no. DC1-1 or stock HD coil, or Screamin Eagle V-Twin coil.

You can always go pick up a coil try it out and if doesn't work return it? thats just unplugging and plugging a few cables.

I have the same modules on my battery and couldn't tell ya what makes em work. I read the manual some more.

 

[dogvet]

Make sure hou have power at the red wire at the ignition before you go throwing parts at it.
the module and coil share the same power source.

 

[BDMCHOPPERFREAK]

Ground wire?

Sparks,
There was a situation on my 03 chopper where it would not start. For some reason unknown the electronics under the seat need a ground wire installed. It seems everything is fine and then one day the system needs the ground wire. I know this was an issue in 03. I have pics at home of the ground wire install. Good news is the fix is less than $1. Email me if you want the pics. almccoy1@alltel.net Good Luck
BDMChopperfreak

 

[Sparks]

I have power at the red wire from the battery to the module and from the tiny red wire that comes out of the module and goes into a triplex plug and says REV on it then goes into the ehc.

 

[Vegas]

You should be able to check your cam sensor for AC voltage. The cam sensor tells the ingnition module when to fire the coil. You can do an ohm check on your coil as well. Without a manual I don't know specs, but your coil should have a good amount of resistance and your cam sensor should produce AC voltage while cranking your engine. Unplug it at the module and check for the voltage cranking there. If you coil checks out, your cam sensor is functioning properly, and you have voltage and ground everywhere needed, then I would be looking at ignition module.