Help! Looking for help with SVZIX e-bike

[Tvtech]

Hello all!
I’m looking for some help with a wiring diagram for this bike. The throttle handle was ripped off in shipment. Not sure what type it is . It has a 5 wire julet blue connector. I purchased a throttle handle but it has 6 wires
Very strange wire harness as pictured. A schematic diagram would help me understand what is what. Error code blinks on and off while I’m holding down the center button on the display.

 

[thelarkbox]

Your best bet for such a schematic is a google based on the details provided on the controller label.

that looks like a bit more than the standard 4 into 1 and 5 into 1 julet conectiong cable? if your bike has lights powered/switched through the controller that could explain the extras??

but a process of elimination armed with a few key details may also help. pretty much every controller has to connect to the following..

1 battery with 2 x thick wires.
2) display with 5-6? wires
3) Motor with upto 9x wires 3 x thicker phase power wires, 3 x thinner sensor logic wires 2x dc logic voltage supply 5v (+.-)
and a speed or sometimes temperature sensor.
4) a Pas sensor (3 wires -cadence type, 3+ wires? torquue
5 upto 2 x brake cut off sensors + simiilar gear change sensors(sometimes) 2xwire or 3 x wire.
6 throttle input 3 wires
7 optional keylock?? (rare)
8 optional light feeds??
9 optional alarm wires (very rare)

so based on position on the bike and the number of connections it should be fairly simple to work out whats what..

 

[Nealh]

He's bought a 2000w moped.

 

[thelarkbox]

thought the controller was overkill..

 

[Nealh]

Might also only be 750w but still a moped so a motor vehicle , it depends on the version bought.
Soon as I saw 48V @21A it shouted out moped to me on an OEM model.

 

[saneagle]

Hello all!
I’m looking for some help with a wiring diagram for this bike. The throttle handle was ripped off in shipment. Not sure what type it is . It has a 5 wire julet blue connector. I purchased a throttle handle but it has 6 wires
Very strange wire harness as pictured. A schematic diagram would help me understand what is what. Error code blinks on and off while I’m holding down the center button on the display.

All such electric bikes work the same, so the wiring is pretty much the same. A throttle only has three wires. If you bought one with 6 wires, it's because it has a switch and led lights on it that you don't need.

Are you sure that the connector you showed us is for the throttle and not for the LCD? Please show all the connectors coming out of that manifold together, so that we can see what you have. It looks like two for the brakes, one for the throttle, one for the LCD and something for the lights.

 

[Tvtech]

Blue: goes to throttle with power switch and battery display
Green: display
2 Red: brakes
Orange: horn and light buttons
Also pictured is the original throttle that was damaged in shipping
Can’t find a 5 pin throttle with a julet connection.
Thanks for all your help everyone!

 

[saneagle]

Blue: goes to throttle with power switch and battery display
Green: display
2 Red: brakes
Orange: horn and light buttons
Also pictured is the original throttle that was damaged in shipping
Can’t find a 5 pin throttle with a julet connection.
Thanks for all your help everyone!

Does the bike have a normal LCD? If it does, that's a really daft arrangement because the battery display and switch are integrated into it, so you don't need separate ones on the throttle.

The 5 wires you have are 5v, battery voltage, ground and two switch wires. The easiest way to find which is which is to open the controller. The problem you have is that the 5v and battery voltage probably won't show until you connect the two switch wires.

The scheme is that there's a branch off both battery wires. The ground splits and goes to the throttle and the LCD. You can find those with a continuity test and they're always black. The positive goes up to the ignition switch, back down to the controller, then back up to the LCD, and when you switch on the LCD, it comes back down to the controller to power it. The ones going to and from the LCD are normally red and blue. The ignition wires could be any colour but you can find the live one by testing continuity to the battery positive. The other one will have continuity to one of the pins in the LCD connector that doesn't have continuity to ground. Once you've identified those two, you can join them together so that you can identify the three throttle wires that will be ground, signal and 5v. The 5v only comes on when the LCD is switched on.

You have to be very careful if you bare any wires because if you touch any of the others with a live battery wire, you'll wipe something out.

This is the throttle, but it has the wrong connector. Normally, I'd cut off the connectors and solder the wires.

24V 36V 48V Electric Bicycle Twist Throttle Accelerator Gas with LCD Display and Key Lock for Electric Bike/Scooter e-bike Parts - AliExpress 18

Smarter Shopping, Better Living! Aliexpress.com

vi.aliexpress.com

Personally, I'd bridge the two ignition wires and fit a normal thumb throttle,assuming you have a switch on the LCD, which you haven't shown. Full-width throttles always break - sometimes when you go over a bump.

 

[Tvtech]

The picture of the display is on my original post. I got the error code by holding down the center button on the display and that code kept blinking on and off

 

[saneagle]

The picture of the display is on my original post. I got the error code by holding down the center button on the display and that code kept blinking on and off

It's weird that it's switched on without the ignition switch being switched on. That leaves the possibilities that either the ignition switch wasn't used or it's on the return to the controller, which would be a strange way to do it.