Throttle Wiring questions

[LJ3]

I'm trying to replace the stock 7-wire throttle on my e-bike with a more readily available 5-wire throttle, but I'm having trouble figuring out the wiring. I've contacted the manufacturer for a wiring diagram — they're responsive but haven’t provided any useful info beyond what I already know, and they are dragging their feet sending a diagram over. I'd really like to get this finished so my son has his bike back.

I'm hoping someone here can help me identify what the two extra wires from the controller are for, whether they require constant power, and if I’ll be losing any functionality by not connecting them. Its brushless for wiring purposes. I've attached screenshots of the emails and photos of the throttle internals for reference. Any guidance would be appreciated!

I did share the pics with the company, and as you can see from their responses they differ. So I am not sure how to even test or wire the last 2-3 wires. Any help or guidance would be appreciated.

 

[amberwolf]

I'm trying to replace the stock 7-wire throttle on my e-bike with a more readily available 5-wire throttle, but I'm having trouble figuring out the wiring. I've contacted the manufacturer for a wiring diagram — they're responsive but haven’t provided any useful info beyond what I already know, and they are dragging their feet sending a diagram over. I'd really like to get this finished so my son has his bike back.

I'm hoping someone here can help me identify what the two extra wires from the controller are for, whether they require constant power, and if I’ll be losing any functionality by not connecting them. Its brushless for wiring purposes. I've attached screenshots of the emails and photos of the throttle internals for reference. Any guidance would be appreciated!

I did share the pics with the company, and as you can see from their responses they differ. So I am not sure how to even test or wire the last 2-3 wires. Any help or guidance would be appreciated.

Some thoughts, if you can provide more complete information we might be able to help.

I don't see a throttle, just a display.

Please provide a link to the info page for the new throttle you want to install, and at least pictures of the original throttle and it's wiring and connector, and the controller and it's throtle connector.

Pictures of the controller label(s), bike model and labels, and any other parts info about throttle (original and new) and controller may also help.


The wiring for the display will not generally have anything to do with the throttle.

The throttle usually connects direclty to the controller, not to the display.


To connect a different throttle, you'd need to know or test for what the original wiring was, and then find a throttle that can perform the functions you need to still work, regardless of how many wires it has, that can function with the wiring available.

If that's not an option, you'd either have to replace the throttle with one from the bike manufacturer that is compatible with this specific model, or find one elsehwere that is known to be compatible, or you'd have to replace the entire system (controller/display as matched set, possibly other parts) on the bike to work with throttles that are available.



If the pictured display is what you are replacing, then it is not a throttle, it is a display, sometimes called an LCD (even when they aren't), and your controller is probably only compatible with the original display model and version, which may only be available from the bike manufacturer (it may have custom firmware or be a custom design).





What was the reason for replacing the throttle (or display)?

If it's because it failed, what specifically happened between the time it worked and the time it did not?


These things may help us help you find a solution. Note that many times it is not the part that is being replaced that is actually causing the problem, and knowing what caused the original failure can help point toward the real failure.

 

[LJ3]

Some thoughts, if you can provide more complete information we might be able to help.

I don't see a throttle, just a display.

Please provide a link to the info page for the new throttle you want to install, and at least pictures of the original throttle and it's wiring and connector, and the controller and it's throtle connector.

Pictures of the controller label(s), bike model and labels, and any other parts info about throttle (original and new) and controller may also help.


The wiring for the display will not generally have anything to do with the throttle.

The throttle usually connects direclty to the controller, not to the display.


To connect a different throttle, you'd need to know or test for what the original wiring was, and then find a throttle that can perform the functions you need to still work, regardless of how many wires it has, that can function with the wiring available.

If that's not an option, you'd either have to replace the throttle with one from the bike manufacturer that is compatible with this specific model, or find one elsehwere that is known to be compatible, or you'd have to replace the entire system (controller/display as matched set, possibly other parts) on the bike to work with throttles that are available.



If the pictured display is what you are replacing, then it is not a throttle, it is a display, sometimes called an LCD (even when they aren't), and your controller is probably only compatible with the original display model and version, which may only be available from the bike manufacturer (it may have custom firmware or be a custom design).





What was the reason for replacing the throttle (or display)?

If it's because it failed, what specifically happened between the time it worked and the time it did not?


These things may help us help you find a solution. Note that many times it is not the part that is being replaced that is actually causing the problem, and knowing what caused the original failure can help point toward the real failure.

Thank you for your prompt response.

It is new for me also. It didn't even come with a manual at all. I thought the same thing when I was taking it apart which is why I contacted them directly.

It is a macfox x1. The attached LCD display is the throttle control system. The seven wires shown are to the old throttle for color reference. The display and throttle are one unit with 0 wires going directly to the hall sensor, etc. picture attached with the broken throttle body. It isn't wired like most throttles directly to the hall sensor.

The new throttle also has a display connected. (picture attached.) My worry with the new throttle is that it may not have the option to adjust the output mode, which isnt a big deal as long as I can get it to full power as he only uses the full power mode.

I oriented the manual buttons with the circuit board correctly in the pic, so that It would be easier for those trying to help to assist. The circuit board connects to the manual buttons in the picture, which leads me to believe either I have to connect the additional wires to the signal wire to bypass the broken control unit/throttle. I am hoping that they send over the diagram of the throttle/LCD so I can share it with others since it isn't available online. But I am impatient and want to get his bike back to running. I can do further testing but I was hoping for a little guidance if anyone has any ideas on how to test or figure out what the extras do, as it will be difficult to test the speed modes.