Hi and
to the forum.
The LED battery gauge on the throttle is fed directly from the battery and the gauge is completely independent of the throttle operation
(although it does share a common ground connection).
If the Battery Gauge fails, the throttle should still operate normally, and vice versa.
Therefore, if the LEDs
and the motor have both stopped working, it is probably a battery supply problem
(poor wiring connection, keyswitch contacts, or possibly the battery's BMS).
As you haven't mentioned which battery you are using, you might want to check that your particular battery is capable of supplying at least 25~30 Amps of
continuous current, which is typically lower than its maximum rated
peak current.
What was the actual voltage reading that you observed on the throttle signal wire?
Alan