Strange Electrical Issue (Sunroof/Instr Clust)...
 

I have an 86 951. A few weeks ago, the instrument cluster started flickering on and off. Now it is off for good (all of the needles stay at rest). I also found out that the sunroof is not getting power either. When the cluster was getting power, the roof was too. I traced the power wire for the roof straight up to the relay box under the hood. It is connected to the roof relay (944.615.117.02) pin 2 and there is a black wire that is connected to pin 15. Pin 2 and pin 15 are the same circuit in the diagram on the relay. I traced the black wire back to the cluster harness.

Now that all of that is out of the way... I am guessing that this relay has failed causing both components to quit working. It sounds pretty logical, but at $150 I don't want to order a new relay and find out that that isn't my problem.

Does anyone have any experience with this situation, or can anyone tell me how to test this monster relay?:confused::confused::confused:
Thanks,

GJ

I also have an 86 951 and the same thing happened. I think it was relay G2. If that relay is no good you probably won't get power to fuses # 17,18,19. I checked by replacing it with the horn relay because they are both the same. both have the "53"
-Adrian