'86 5KTQ instrument cluster lights out

[john at westcoastgarage.net]

You said" The instrument cluster lights on my '86 5KTQ went out last 
night as I pulled into the driveway. The lights on the diff. lock 
control panel also went out.

I checked the fuse panel under the hood and all fuses look fine.

I've read about a kink on the wires near or at the trunk lid that causes the instrument cluster lights to go out but not sure about which models it affects.

Thanks in advance for your input!"

LDC

I'm not sure about the '86 5000Qs, but the '87s have a light control relay above the glovebox.  A few months back I spent WAAAAAAY too much time looking for this puppy, and it was only by luck I found it.  There were a few well meaning efforts to point me in the right direction, some referencing the Bentley manual, but in the end it took me parting out a car to find it.  About the size of 2 normal relays, with venting for the heat, and clipped to the underside of the front of the dashboard.  In my case, it was probably bad contact at the pins, and plugging/unplugging it a few times after spraying it with a good quality contact cleaner/enhancer did the trick.  I have a spare if you need it.  BTW, it's a couple of hundred bucks, I think, at the dealer.  John