Mystery object . . well it is to me.

I've just acquired a Ford Sierra based trike, supposedly a 1987 engine / gearbox. It's a four speed auto box, and whilst checking things through I found the
kick down didn't operate as it should. Traced the wiring back to what appears to be a relay, or a timer relay. It's a one inch square box, blue in colour, with four terminals marked 54-50 54-52 31 and what looks like 15. - - - and the words "Kick down control" on it. The wiring diagram I have shows an extra terminal, marked 1. - which this "control" doesn't have. I've currently swapped this 'mystery object' for a normal 30 amp relay, and the kick-down seems to work ok. Will this cause any problems - and just what is the "Kick down control" thing anyway ?
I've also noticed you can start the engine whilst the gear lever is in any position - is it just a case of putting a relay between the starter switch and the starter motor solenoid, wired through what I take to be an inhibitor switch mounted on the gearbox ?
Thanks in advance.
-- - - ^..^ Lone Wolf.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.