Rear Sun Roof wont come down 1994 super custom

[b]Rear Sunroof wont come down can anybody help many thanks

The same happened on mine, the middle one wouldn't work either. just a clicking from the relay box in the headlining by the middle sunroof. The fault was on the circuit board of the relay box, broken circuit board track - burnt through - I soldered a jump wire on it and its all good now.

Have soldered three bridge wires in now but still just a clicking relay and no action, buzzer had been removed so i bridged that also but no difference   

Must be something else like a relay or fuse or maybe the cap/resistor is fubar, could one check them with a multimeter somehow ?

don't bridge the buzzer you will cause a short circuit

Well i did and it didn't make a blind bit of difference, so i'm guessing i have more of a problem than anticipated, it just still makes a click when i press the rear 2 moonroof up, also the little green light does not work on rear 1 roof control ?

Both of mine stopped working ages ago... The middle (slide) went first, then after a while the rear (lift).
Same deal with the clicking controller. The first time I got the middle one going by taking the glass out and lubricating the tracks etc. it worked but not for long.
then when the rear lifter went I put it down to something else(like the controller) but haven't looked at it for a while.

Any got any diagrams for the rear sunroof