This unit fits directly on to the gearbox in place of the standard cable and produces a digital signal for use with any electronic speedometer requiring 12 or 5 volt square wave pulse such as our electronic speedo
13H4443. Fits pre 1980 speedo drive pinions, for post 1980 use
GSD1001.
Wire as per below:
Red Wire - +12volts switched live
Black/Green Wire - Ground/earth
White/Brown Wire - signal output
The signal is a square wave 7 volt output pulsing 6 times per single revolution of the cable.
It will not work with gauges that require a two wire sine wave input.
Pre 1980 - The drive's dimension is 3.05mm x 3.05mm, square shape.