2020 EM Epure Race controller issue

[chrisexall]

My controller seems to be jammed on the reset function. I've renewed the switch which hasn't cured it. Any ideas what to do next?

[konrad]

You need to explain the problem in more detail. 

Do you have the optional regen lever (EM calls it PRB-R)?

Are any tones emitted by the motor when you press the map button?

Note that the controller will not permit the motor to run if there is a fault with the throttle.

You can find the wiring diagram here: https://www.electricmotiontech.com/home/em-epure-race/wiring-diagram

 

[chrisexall]

Hi Konrad

No Regen lever. Every time it's switched on it goes through the map reset process inc sound. It has new map button.

[chrisexall]

No tones emitted when the map button is pressed.

[konrad]

It's easy to try the encoder re-calibration process described here: https://www.electricmotiontech.com/home/em-epure-race/motor#h.aqwdzouw61q4

It's possible the throttle signal is out of range.  You can try unplugging the throttle, cycling the battery on/off and then reconnecting the throttle.

A crash can also pull on the handlebar wiring and cause trouble.  It's best to have some slack in the wiring to the handlebars.  Check for poor contact at all the connectors.

Failing that, it will take someone with electronics knowledge and a multimeter.