Ehc rip install

Energy One

Nwhicks21

Member
I get it but remember....HD doesnt have shops in every small town cause HD is soooo reliable. Oh wait, they do.... :oldhardlaugh: if its got tits or tires its gonna cost ya. These bikes are HD's on steriods. Dont give up too soon or you will miss all the fun.
, yea ik man, soon I get get purring again I’ll be happy and loving her…. But it is just frustrating man. Especially when even the smallest most insignificant parts cost 2-300$. It has nearly put me upside down financially and that’s what hurts me, I have had this bike for a year and not even got to ride it 50 miles bc it is constantly broken. I had a Harley street glide for 2 years and never had to do anything to it besides oil and brakes. Never had a concern about being stranded. This thing on the other hand, I’m afraid to take it to the local grocery store
 

Savage 1

Active Member
No, the only power wires besides what is in in the main harness are 1-the be, 2, the starter, 3 the inline fuse
Take a closer look at that schematic Boss......your response sounds like it does match the bike.
Main power to starter and 2 bus lines controlling everything else. Look closely, follow the wires to components.
 

Nwhicks21

Member
The only power wires is a jumper to the small terminal behind The battery which has 40 amp fuse, from there it feeds the vr, the main harness, and a LED addition the previous owner put in
 

Nwhicks21

Member
From the 2 red wires with the ring terminal in the pic I posted. That powers everything in the ehc from my understanding of what Curtis told me, which makes sense bc then are the only power wires that go into the harness
 

Nwhicks21

Member
How does the EHC get power?
How do the compression releases get power?
How do the lights work?
How does speed sensor get power?
How does speedo get power?

Are they activated by ground via relay or EHC or both?



Ask these questions to yourself. Then look at bike.
Then look at schematic. Completely understanding the power distribution is essential to your success in making the repair.

While you are checking all this stuff out, I'd pay attention to the LED set-up as well! I wonder if that has load equalizer or driver. Wonder if that is set up correctly or will the LEDs cause you more headaches.
I have them unhooked atm, but they are very small and wired through a single push click type switch
 

Nwhicks21

Member
How does the EHC get power?
How do the compression releases get power?
How do the lights work?
How does speed sensor get power?
How does speedo get power?

Are they activated by ground via relay or EHC or both?



Ask these questions to yourself. Then look at bike.
Then look at schematic. Completely understanding the power distribution is essential to your success in making the repair.

While you are checking all this stuff out, I'd pay attention to the LED set-up as well! I wonder if that has load equalizer or driver. Wonder if that is set up correctly or will the LEDs cause you more headaches.
Man I’ll be honest with you, explaining electrical to me is difficult, you have to treat me like a high school student…. Bc don’t get me wrong I understand the basics of electrical, I can wire up light fixtures in my home and troubleshoot small things, I have limited experience with a MM, but I have a fluke meter and ik how to check resistance, ik how to check voltage, ik things need 12v and good ground, (some run on 5v reference), ik resistors and their function, but other than that…. I’m Clueless. Looking at these schematics is like trying to read a foreign language almost. That map is nothing like what u see on the bike and it confuses me. Just like when you were helping me in the beginning talking about the 40 amp breaker, I was trying to track that circuit, and checking to see the speedometer diagram where u said it doesn’t go through the ehc, but I see the red wire connect to 5 or 6 different things in several different locations, and then see one of them DOES go into the ehc but it appears to be the original source of the power output. As far as ground activating and stuff like that, hell idk bud
 

Savage 1

Active Member
The power should be coming from EHC like you said. (Runs through EHC, not controlled by it) Remember, I can't see it. The red wire should have 12V. So test it with fluke. Let us know you are getting 12 v.

The ground wire should have continuity with negative post of the battery. Very low resistance. Check it, unhook positive first, then check with multimeter.

Then perform test on speed sensor, post all those readings. Test as close to the speedometer or sensor are you can.

Make sure battery is unhooked when testing resistance, can fry your meter.
 

Savage 1

Active Member
SPEED SENSOR TEST
First, test that the red wire reading is 12 volts.
Test the black wire for continuity. Using the
proper equipment, raise the rear tire, and check
voltage at the green signal wire while spinning the
tire. The reading should be between 0 and 6 volts.
If no voltage registers, replace the speed sensor.
 

Savage 1

Active Member
Both the speedo and sensor should have a connector with 3 wires.....

Red is 12v power, green is your signal, black is your ground
 
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Savage 1

Active Member
Food for thought......don't screw up the jst connector. Use a T pin or something and alligator clip or whatever. Don't force it man.
 

Nwhicks21

Member
The ehc receives its power that it sends to the main harness from that double pin ring connector with 2 red wires I sent you, not sends it
 

Savage 1

Active Member
Power up circuit, there should be a yellow light on telling you that there is a problem on that circuit. I'm would think they kept that function on newer generations. At a minimum, you should've received something in the instructions.

Read this, it tells you how to locate the problem.
 

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