ZB pin

[cld351]

Could anyone tell me what ZB pin on a lcd/throttle controller circuit board stands for,thanks in advance

 

[Nealh]

A pic may help also follow the pin out track to see what colour wire it leads to.

 

[Nealh]

Typically a speed switch is three wires, Gnd , 5v and input /signal.

Trying to think logically from past experince one would say ZB is signal input as the two letters do not equate to Gnd or 5V.
However as previoulsy mentioned tracing the pin out track may help more.