Parasitic drain electrical

Energy One

Pddain

PHTM II
Disconnected the electrical peripherals like handle bar controls, head light etc. pulled the master breaker and measured the drain. Iron horse cycles in Decatur Al. did the work as I have no where to work on the bike and they were doing the engine work. The only thing left was the EHC.
 

Sven

Well-Known Member
Correct me on this:
1. I have no meter, but a good known module to swap. I'm in a dark garage, I pull one plug and does it spark on the disconnect?
I then reconnect, I see the same exact spike. I swap to the good known, and when connected, hardly a spike. In the dark I can tell who is more parasitic.

2. With meter the swap will give even numbers on the connects; if I run the amp scale in between ground cable to battery post, yes?

If I lift the hood on the pin box and guess a diode is bleeding... it's a one way switch and if it fails, it bleeds like a parasite, right? Thus the more spike that lights up that one pin, whereas the other pin is ground... you can see the arc spikes off the tips, where the other pins would look the same except these two... depending on who was touched last, to who on the pull was disconnected first.

Takes 12v to hot the chip... https://external-content.duckduckgo.com/iu/?u=http://osoyoo.com/wp-content/uploads/2017/08/555-timer-pinout.png&f=1&nofb=1 ... is 1 and 8, then 5 is the controlled 5v needed to process. Now, here is where I keep bumping into this 0.7v spike being somewhat universal in the math of it? I can't tell if that number is the spike when 12v is connected. But you get the idea it can be measured is the [parasitic-short] spike made.

2,7, and 6 is the heart beat/toilet flush/60hz on a rheostat kind of controller... think Christmas lights blinking at all sorts of speeds. Get it? I'm down to searching if it is a part under the hood that took a shit... someone changed the black box, and how did that diagnosis walk? I walked it two ways. Make sense?

Make sure you save the EHC. You're not out of the woods yet.... or has the time off the charger called the ball?


How did you figure the EHC was causing the problem?
1+
 

Pddain

PHTM II
I decided to put the bike on a battery tender pending replacing the EHC with the ESC. Jim Powell replaced his EHC with the ESC and the drain went away. Sven, your too deep for my knowledge base at this time. Chris, at Iron Horse Cycles, told me the EHC is designed to pull power in a stand by mode when the ignition is off. All the ignition does is tell the EHC to wake up. This is unlike most bikes where the ignition completely kills the power to the bike. Hence the power draw with the EHC in stand by mode. It is just the design, not a part failure if I understand your work above.
 
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