t5 speed signal solution
Posted: Wed Apr 25, 2012 9:21 pm
not sure where this belongs but for anyone wanting to get the speed signal into the t5 ecu for live speed /gear position and boost control this is my solution . i dont have any abs rings on my car so had to use the old saab 9k speedo head .
the head is simple enough to get out of the dash unit and comes apart with a few screws
not my bag but seems fairly obvious that the signal from the box gets re jigged in here before going on to other modules
the connections are simple enough
the top two are the black and white from the speed sensor on the gearbox
the other three are black to earth ,red to 12v switched and the green is the output to the ecu .in the car the output splits to the cruise module and the trip computer so signal strength wont be an issue if you use the output to drive an aftermarket speedo
ive wrapped the unit in a bit of foam and tucked it away under my dash as it weighs bugger all
this should work with most gearbox transducers with two wires on them
the head is simple enough to get out of the dash unit and comes apart with a few screws
not my bag but seems fairly obvious that the signal from the box gets re jigged in here before going on to other modules
the connections are simple enough
the top two are the black and white from the speed sensor on the gearbox
the other three are black to earth ,red to 12v switched and the green is the output to the ecu .in the car the output splits to the cruise module and the trip computer so signal strength wont be an issue if you use the output to drive an aftermarket speedo
ive wrapped the unit in a bit of foam and tucked it away under my dash as it weighs bugger all
this should work with most gearbox transducers with two wires on them