Px 125 EFL brake light stays on

[ians]

Hello,
New to the forum … so straight in with a tech issue

Px 125 EFL battery model

My rear brake light stays on when scoot fires up. Everything else works as it should.

Both rear brake pedal & handlebar switch work fine

With the scoot turned off and battery disconnected I have continuity between the grey ( power feed) and the blue ( return to bulb holder) wires which is shouldn’t happen. However Disconnecting the black earth wire spur to the rear brake bulb holder and this grey / blue continuity disappears and in effect both switches now function as they should BUT surely the bulb will not light as the earth spur has been disconnected.

So have I actually got a weird +ve earth somehow

[frankgallagher]

Hi and welcome, you say the brake switch is okay, have you metered it to check the switching or just visual as the small thin terminals can sometimes warp and connect.
Also have you done a drop test ?

[gpowell]

Id defo recheck the switch