Reverse lock out

[cornetto]

Im working on ironing out a few bugs in my E38\L76 conversion. Reverse lockout doesnt seem to be working.

Ive taken the multimeter to the lockout connector and getting 0.5v from the ECU on the reverse lockout pin (there is +12v on the other side of the solenoid). My understanding is that the ECU pin should ground out when the vehicle is below 5 or so km\h. Does the ecu use any other info to determine when to disengage the lockout?

I dont have a clutch pedal switch (as I assumed this was just used for cruise control etc) but if installed this goes to X1-4 - so i put +12v onto this pin temporarily to see if it made a defference - still no luck.

Thanks in advance for any suggestions.

Cheers
Andrew