Just to make sure there's no short across the cluster illumination wiring, unplug the dimmer and pull the gauge out as far as you can while it's still plugged in. Test for continuity across the white/green stripe wire at the dimmer harness and each of the four wires from the TEMS display.
__________________
If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum.
If you're so inclined I'm always more than happy to accept tips via PayPal. 
Tip Jar ---> 
|