Wisper 705SEL Lost throttle

[trevor.redman]

Can anyone help please? My wife has had a Wisper 705SEL for a number of years and it’s been perfect for her particularly since she had a replacement knee.

I had to replace the controller (WCN0029) late last year after the assistance failed (very grateful to Adrian in Wisper Tech Support for his assistance in sourcing one for us). The bike’s assistance now operates fine with the exception of the throttle which doesn’t work.

I would appreciate any suggestions on how to check where I’ve gone wrong with the connections for the throttle or if there’s still a fault with the wiring?

My wife finds the throttle indispensible for pulling away at junctions so thanks in advance for any help

 

[vfr400]

Did it connect colour to colour?
Did you ask Wisper if there's a setting in the controller/lcd that disables it or changes its priority?
Did you measure that you're getting 1.2v to 3.8 v on the signal wire when you operate it?

 

[trevor.redman]

I disconnected and then reconnected each plug and socket in turn so hopefully all okay there.
I have spoken to tech support a couple of times but they didn’t mention a setting that disables the throttle but it would be great if that was the solution.
I haven’t measured the voltage as I was uncertain which colour cores control the throttle. I have asked but not been answered so would appreciate which to look at
Thanks for your help

 

[Nealh]

Can you post some pics of the throttle wire connector Trevor so we can check the connection sequence.

 

[trevor.redman]

Hope these help

 

[Nealh]

From those pics we/I have no idea which one is the throttle, you will need to trace the wiring from the throttle to the controller if the wire colours aren't known.

In the last pic there are three wires White, Black & Green that disappear this possibly may be the throttle wire/connection, the connection isn't visible.

I'm afraid a birds nest of wiring doesn't help much.

The throttle may be deactivated and the new controller may need enabling via the display.

 

[vfr400]

Hope these help

Honestly, do you really think we can make anything out of those photos? You could have saved some time by stepping out into your garden and photographing the birds nest in the hedge, which might be more useful in diagnosing your problem.

 

[Nealh]

As vfr alluded to earlier a new controller may have to be enabled though correct id of the connection/wire loom is needed to be sure sequence is correct first.

Vfr's reply I found funny but he is right though.

 

[trevor.redman]

Ouch! harsh but justified I think!
Hopefully these will be more useful and apologies for the first ones
Couldn't find a nest to photo......

I'm pretty sure that the connector with the red/yellow/black wires are the throttle ones if those colours have been continued through from the throttle as that is what they are there. Are there any checks I can make it with my multimeter to see if there should be a

Neilh : I wasn't aware I could activate new controller through the display. If the assistance is working isn't the controller activated? How would I reset using the display?
Thanks to all for your helpView attachment 41109View attachment 41109View attachment 41106

 

[Nealh]

With the pedelec law revised post 2016 throttle have to be 6km/h/4mph only, a lot lcd's do have settings where one can change some things like speed setting, wheel size and throttle settings. The PAS is obligatory so it can't be changed the throttle isn't and is independent of PAS.
Changing any setting depends on the software but often one can hold the up/down buttons simultaneously for about 10 secs or another combo of said buttons for advance features to appear, you can scroll thru so be careful of what you change and make a note of any of the values displayed.

Attachments don't work.

 

[trevor.redman]

Resending photos

 

[vfr400]

Unplug the white bridge. If that doesn't do it, try disconnecting that pair of purple wires.

 

[Nealh]

The white wire may be a speed restriction link as White is most often linked to speed as being the signal for the wheel sensor & throttle so may be a throttle disabler.
The Purple again may be some kind of restriction but what ? Usually when disconnected these wires will de-restrict or enable a function.

Second pic looks like the brake cut out connections.

 

[trevor.redman]

Sorry for delay in replying I was out all day yesterday and most of Sunday.

I've tried disconnecting both links and no change unfortunately. I was very careful when reconnecting the new controller to make each connector in turn so I'm pretty sure both of those links would have been made at that time.

I also tried holding down up and down buttons as suggested but now the first power indicator lamp is a steady red with the other 3 green.

 

[Nealh]

You haven't yet confirmed the actual throttle connection can we see a pic of just this connection on its own.

 

[vfr400]

Neither the version of the bike nor what type of control panel it has. Everybody is always so vague!

 

[trevor.redman]

Nealh please find attached photo of throttle connections. My eagle eyed wife spotted that there's a nick in the yellow wire so that could be the problem. I think the third photo P1100758 shows the controller end connection

Sorry for being vague but I thought I'd said that it's a Wisper 705sel (about 2012) and the controller is a WCN0029

Thanks again for your help to a novice

 

[Nealh]

Controller numbers mean nothing in this case the maker isn't known.
The wire nick is is just that or a complete break ? If a nick in just the outer sheath then it won't stop it working.
The connection we need to see is the throttle wire connector and it opposite mating to the controller wire connector.

 

[vfr400]

Your photo P1100758.jpg in post #11 shows that the connector isn't in properly. It has the same colour wires as the throttle!

 

[trevor.redman]

Sorry it's a Wisper supplied controller - image 004 attached

Please also find attached photo P1080612 showing the nick in the yellow wire insulation, the conductor seems intact. P1080614 shows the connector to the controller
I've taken the throttle control off of the handlebar but it would be useful to remove the black plastic cover but I'm not sure how and don't want to force it. Is it possible without damaging it as space is very limited for attempting a repair to the wire?
I've also tried a continuity check to the plug at the controller with a reading of 0.6 which I don't really understand as I would have thought it should be zero

Thanks for your patience, any suggestions on a way forward would be gratefully received