mefast
elescooterparts

Test Electric Scooter Key Switch at Controller
No test equipment necessary
Key switch circuits often labeled lock.
TEST
1. Remove fuse
2. Elevate rear wheel
3. Disconnect Key or lock circuit
4. Make a jumper circuit between the two Key circuit wires from controller.
CAUTION
Be sure scooter is stable
Stay clear of rear wheel
5. Replace fuse
CAUTION Throttle may now be active
6. Check display, brake, turn signal, headlight, and horn.
If none of the above are available try throttle.
7. Remove
jumper circuit.
End of test

If
display, brake, turn signal, headlight, or horn are functioning your key switch circuit is malfunctioning.

Replacement Key switch

Most Chinese electric scooters use two and sometimes three position key lock  circuits.
( Your scooter may have a three position switch but the third position is not commonly used)
OFF null , ON on, and sometimes an accessory ON take-off.
Unlike gas scooter control units (common negative ground systems)
most electric scooters controllers are equipped with dedicated accessory circuits and do not employ frame grounding . ( Gas scooter key switch On = Open and Off position =  Closed Circuit).
Voltmeter
Test- Test suspect electric scooter key switch for continuity Off = open, On = closed circuit.




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