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Thanks mate, maybe I'll email Yamaha when I'm back off holiday with the serial number and see if they can offer any help.

I passed the magnet over it several times at diffeent distances off the bike, before I stipped it down I also added 2mm thick earth magnets to the spoke magnet but that didn't stop the control from flashing number 2 battery light, does anybody have a parts list for the Yamaha motor ?

I think I can rule out the wheel sensor as I'm getting a 5v -0v when I pass a magnet over it, just need to find out which sensor in the motor is causing the issue and hopefully I can find the part to replace it.

I haven't opened the motor yet, I was testing the speed sensor on the back wheel, the bike is a Prime E+, not sure what number but has the Yamaha X94B2 mid drive motor.

Sorry, it's a Giant Prime with a Yamaha mid drive, I've since found out that the twist display has another connection mid way down the frame so I took that display and connected to the Prime and the same light flashed indicating the pedal plus sensor, I've now stripped the 3 wires back on the...

The displays have different connections on them, I did find that the flashing second battery light indicates a faulty pedal plus sensor but would that stop the bike from running?

That's my next step, the Twist has the same display so I'll try that first and check the wiring at the same time.

I've just swapped the battery onto a Giant twist I've just bought and it works fine, it has the same handlebar controls so I think I'l swap them out tomorrow and see what happens, any known issues with the Yamaha motor that could cause these issues ?

I have just emailed them to see if they can help, thanks for the info, much appreciated.

Thanks Soundwave, the battery charges to 41.7v without any issues, so it looks as though the cells are ok, I tried it on another Giant and it came up with an error code on that one too, if I could just find out what the 5th cycle error code is then I might have a better understanding of how to...

I'm not sure that it is still in warranty, how do I find out?

Hi all I am trying to find information on the Giant energypak 500 battery self diagnostic test, when pressing and hold the button on the battery for 8 seconds it starts the self test, everything seems ok until I press it for the 5th time, the 4th and 5th battery lights light up and then the 1st...

Hi all, after a week of trying to find a replacement display for my Pendleton Somerby and reading many of posts like this, I found that Halfords have discontinued the 790 display for the Pendleton........BUT, if you look on their website at part number 196086 it is exactly the same (with walk...

I've now managed to sort it I think, left the BMS unplugged overnight and tried it this morning, all seems to be Ok now, have tried it around 20 times with no issues, Thanks for your help vfr400 & Nealh.

Thanks for the reply guy's, the switch solder is fine, VFR400, it's the combination of turning the bike off by the battery switch that causes the issue, if I turn it off by the control panel then it seems fine and works as it should, if left then when I turn it on the panel flashes once and then...

Just tested the cell groups as follows 1, 4.13 2, 4.13 3, 4.13 4, 4.13 5, 4.13 6, 4.13 7, 4.13 8, 4.13 9, 4.13 10, 4.14 The cells seem to be ok, the battery charged as I would expect but the on/off issue is baffling me.

I've tested voltage on the battery at 41.7v, when the display works it all seems fine on pedal assist, the BMS has on/off on it which is my first thought, do you think I have a mix of over/undercharged cell groups which is causing the issue ?

Hi All, I bought a 2018 crosscity e bike with a dead battery, it had fallen below minimum voltage to charge, I opened up the battery and charged it by the battery + & -, now when I turn it on it either turns on straight away or the display just flashes and then turns off, if you turn it off via...

Hi Phil, did you ever find out what the third was did as I have the same issue on my Gepida Alboin, cheers.

I'm after the rear hanger torque sensor for a giant twist, part number is 245MZWGITS-09V, not sure if the 07V would work. Or any information as to set these up would be great. Many thanks Clive