Skip to content
View in the app

A better way to browse. Learn more.

Pedelecs Electric Bike Community

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Fiido D2 wiring diagram

Featured Replies

Hi All,

 

Does anyone have a wiring diagram for a Fiido D2. I have naively disconnected thinking it would be colour coded when taking off the back wheel!

 

I have attached the controller if anyone know anything please let me know.

 

Thanks

IMG_20190905_215015.thumb.jpg.dd3cc928590b044a83690f3db0a08e74.jpg

The three motor phase wires and the white block with the motor hall sensor wires are easy, then you have yellow and black for the brakes. The rest is unconventional and similar to one I'm working on right now. Mine doesn't have quite so many connectors and it was really tricky to work out because the colours are different on each side of the connectors. I had to open my controller to see where the wires went to figure out what they were for. Tthe ones you need to identify are the one that the main switch switches on and the throttle and pedal sensor signal wires. You'll have to show photos of the inside of your controller on both sides for me to help you with that. You can measure all the rest with a voltmeter once you have the controller powered and the main switch connected and switched on.

 

I'm pretty sure that the 4 way with double orange plus green and white that splits to the 3 way green white and black is for the lights and horn because mine has the same arrangement but different colours. The 4 way goes to the switch and the three way to the lights or something. i didn't look but I can find out tomorrow.

 

You can start by following the cables from their source. there will be one from the throttle unit, one from the horn and light switch and two from the brakes. After that, i don't know what you have on that bike, s you need to tell us what other cables there are. Don't worry about the motor and battery cables because they're obvious.

  • Author

Hi Vrf400,

 

Thanks for the info!

 

I have to cable up:

 

Two breaks - yellow black

Light on/off + horn + 3 way mode switch

Usb charger port

PAS

Key on/of + throttle

 

I think that's it. I'll take a pic tomorrow of the inside.

 

Thanks again

A pic of the outside might help to identify the controller if there's any wording on the case.

I've found a great many web pages online that show that particular controller, places you can buy it etc. but none of them show what connections go where.

The only other thing you can do is as vfr said open the case up and we can see what wires run to what.

  • Author

I've found a great many web pages online that show that particular controller, places you can buy it etc. but none of them show what connections go where.

The only other thing you can do is as vfr said open the case up and we can see what wires run to what.

Thanks a lot Ross, I'll do this shortly

  • Author

Thanks for all the help so far with this, by some miracle I have found a webpage which shows the wiring and have managed this. However, the motor is not working now and I have a flashing battery sign on the LCD?

 

I did manage to make a big spark when I plugged in early but I think that nothing was plugged into the controller? Have I killed my bike?

IMG_20190906_212140.thumb.jpg.fbc8e54d58799e91e0b9e088590ec886.jpg

  • 2 months later...

Just opened up my bike too.

My battery icon was blinking 10 times. Motor didn't work.

Found the problem:

In the throttle handle, there is a little sensor. I thought it was a transistor but it was a sensor. This sensor was shifted and not in place. This sensor detects that metal peace when throttling. So it sends a signal to the controller.

 

Greetings

IMG_20191114_154110.thumb.jpg.9a8003d8249802e77239daf59cf43ac7.jpg

IMG_20191114_154103.thumb.jpg.63e47040d55e978ba6e653d695c86f7e.jpg

IMG_20191114_154057.thumb.jpg.60b8532cfcae48b987d8a8d0cefabcf5.jpg

IMG_20191114_154045.thumb.jpg.eb76c41a88bf8dea7c911bccd6858344.jpg

IMG_20191114_154029.thumb.jpg.35688fad90f495426923cf5bef140932.jpg

IMG_20191114_154014.thumb.jpg.0432bcd3b1798453fd62a9215ca5de73.jpg

IMG_20191114_153933.thumb.jpg.24c5d049454964fa884fc55f587f9829.jpg

IMG_20191114_153920.thumb.jpg.1edd95d1c8ea0002e60336e8818d19de.jpg

IMG_20191114_153908.thumb.jpg.fe4e4317f8b34523e6709f9a987c93fd.jpg

  • 2 weeks later...

Just opened up my bike too.

My battery icon was blinking 10 times. Motor didn't work.

Found the problem:

In the throttle handle, there is a little sensor. I thought it was a transistor but it was a sensor. This sensor was shifted and not in place. This sensor detects that metal peace when throttling. So it sends a signal to the controller.

 

Greetings

I have same problem my bike I taken throttle apart and was all tite fitted inside pedal assist works fine but when I try my throttle no response sometimes when I’m in throttle mode it try’s to take off on its own I have taken all wires off and looked at them gone threw this diagram still no help to my bike my bike is blinking ten times and did exactly what u said but was fine inside as said could it be my controller thanks

Thanks for all the help so far with this, by some miracle I have found a webpage which shows the wiring and have managed this. However, the motor is not working now and I have a flashing battery sign on the LCD?

 

I did manage to make a big spark when I plugged in early but I think that nothing was plugged into the controller? Have I killed my bike?

Hi did you fix this problem

You will need to continuity check the throttle wiring for an intermittent break in it with a multimeter that has a beep function. One of the wires will probably be giving an intermittent contact causing the bike to take off or simply replace the throttle with a new one.

Sometimes you can run your fingers lightly along the throttle wiring and can feel a lump in the wiring where an issue may occur.

 

I once had a throttle cause the same issue and found the signal wire had a break causing the problem, once solder together and insulated problem was solved.

Join the conversation

You are posting as a guest. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...
Background Picker
Customize Layout

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.