Brantz Ford/gm M18 Greabox

Brantz Ford/GM M18 Greabox

Most European manufacturers have standardised their gearbox outputs to accept a 18mm x 1.5mm threaded sensor which has a square peg drive.
Note that this square peg can be inserted into the sensor as a short, or as a long drive pin. Connect up to the Brantz meter to the sensor before fitting the sensor to the vehicle. Put the Brantz on to Calibration figure 001, Switch on the Brantz and rotate the inner rotor of the sensor. See the Brantz tripmeter increment. Do not proceed to fitting the sensor to the vehicle if this stage does not function correctly. Unscrew the original speedometer cable from the gearbox, gently screw in the Brantz sensor
with the drive pin in place, checking that a spacer is not needed to prevent the inner rotor from binding, and screw the original speedometer cable into the sensor with the same check for binding.

Wiring is to the Brantz GREY cable as follows: Green to Black or Silver (negative Ground), Brown to Red (positive power supply), Blue to White (pulsed signal output). Some sensors are wired Green/Yellow to Green/Yellow, Blue to Blue, Brown to Brown. Technical specification: 4 pulses per revolution (20mA sink capability). Hysteresis type sensor. 5volts to 13 volts power supply. This sensor could be damaged by being connected to a non-Brantz/Retrotrip instrument, and in this event can
not be returned as defective under a warranty claim.