I noticed the HBL was not working. I just redid the dashboard last year (see thread on this forum) so it could have never been the light bulb! Anyway, I dug into the hand brake switch. I noticed a Tan wire connecting to the switch. The switch was stuck to begin with but even when I freed the plunger, the light did not work. I pulled out the schematic and traced the wire back to the light bulb socket on the back for the instrument cluster.
Looking at the schematic, I was dismayed. Reading the schematic, I should see 2 wires (pink and tan). I only see 1. I used an ohm meter and verified that the other leg of the switch goes to ground. The schematic does not show the wiring correctly. I updated (rough sketch) my correction below.
I pulled the switch and sprayed it heavily with contact cleaner and switch lubrication. It works like new. I then reinstalled everything but still no light! Darn, I checked for power, I checked for ground….I wonder??? Well the only thing to check is the bulb… It was blown! So much for my quality control! I was SURE I replaced all the bulbs when I did the dashboard restoration. I missed one! Everything works well now…
Here's the schematic mod...