Which controller kit do i buy?

saneagle

Esteemed Pedelecer
Oct 10, 2010
8,399
3,827
Telford
Im talking about plugging a 8 pin male into a 9 pin female. Not a 9 pin male into a 8 pin female.
Have I got this right then: You've somehow managed to jam an 8-pin connector into a 9-pin socket, it's giving an error code and you're wondering why??
 

mxlann

Finding my (electric) wheels
Feb 18, 2025
15
0
Have I got this right then: You've somehow managed to jam an 8-pin connector into a 9-pin socket, it's giving an error code and you're wondering why??
I just realised how dumb i was. I dont have a lot of experience with ebikes. I thought there was a chance it would work since the 8 pin fits in the 9 pin socket without any problems. I thought the extra socket in the 9 pin was for a throttle, which i dont have a connector for. Thank you so much helping me.
 

saneagle

Esteemed Pedelecer
Oct 10, 2010
8,399
3,827
Telford
I just realised how dumb i was. I dont have a lot of experience with ebikes. I thought there was a chance it would work since the 8 pin fits in the 9 pin socket without any problems. I thought the extra socket in the 9 pin was for a throttle, which i dont have a connector for. Thank you so much helping me.
Didn't the controller come with the correct one into 4 cable?
 

Cadence

Esteemed Pedelecer
Feb 23, 2023
311
227
There seems to be some confusion here. A motor usually has a 9 pin waterproof male plug on the cable that connects to a 9-pin female connector cable going to the controller.
There are 3 types of cable to connect other items to the controller via another (but different) 8 or 9 pin waterproof female connector on the controller:-
1T2 - An 8 pin male connector at the controller end and and two connectors for the display (usually 5 pin) and a throttle (usually 3 pin) at the other.
1T4 as above but 4 connectors - 2 extra for brake sensors.
1T5 - as above but with a fifth connector for a front light and a 9 pin male connector at the controller end.
You can probably use a 1T4 cable with a controller having a 9 pin female connector (you just won't be able to use the front light) but not a 1T5 with an 8 pin female controller connector.
The only variation to be aware of is that brake connectors can be 2 or 3 pin and male/female sometimes reversed (eg Yose 3 pin).
This is the wiring diag. for KT "waterproof" controllers supplied by PSWPower:-
KT WIRING.png

I have successfully connected 1T4 cables from Yose and TBK to 9-pin KT controllers (as above diag.) without problems, other than making sure the 3-pin brake sensor connectors on the brake levers were the correct male or female orientation.
 
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mxlann

Finding my (electric) wheels
Feb 18, 2025
15
0
There seems to be some confusion here. A motor usually has a 9 pin waterproof male plug on the cable that connects to a 9-pin female connector cable going to the controller.
There are 3 types of cable to connect other items to the controller via another (but different) 8 or 9 pin waterproof female connector on the controller:-
1T2 - An 8 pin male connector at the controller end and and two connectors for the display (usually 5 pin) and a throttle (usually 3 pin) at the other.
1T4 as above but 4 connectors - 2 extra for brake sensors.
1T5 - as above but with a fifth connector for a front light and a 9 pin male connector at the controller end.
You can probably use a 1T4 cable with a controller having a 9 pin female connector (you just won't be able to use the front light) but not a 1T5 with an 8 pin female controller connector.
The only variation to be aware of is that brake connectors can be 2 or 3 pin and male/female sometimes reversed (eg Yose 3 pin).
This is the wiring diag. for KT "waterproof" controllers supplied by PSWPower:-
View attachment 63201

I have successfully connected 1T4 cables from Yose and TBK to 9-pin KT controllers (as above diag.) without problems, other than making sure the 3-pin brake sensor connectors on the brake levers were the correct male or female orientation.
So for kt controllers i cant use the 1t5 with red brake connectors?
 

Cadence

Esteemed Pedelecer
Feb 23, 2023
311
227
So for kt controllers i cant use the 1t5 with red brake connectors?
If you buy a KT controller from PSW you can because they have a 9 pin connector for the 1T5 cable. KT controllers listed by Topbikekit only have an 8 pin connector so they will only take 1T2 or 1T4 cables.
This is why it is much easier to buy the controller, display, cable, throttle, brake sensors or levers and PAS from one supplier!
 

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