Well I pulled my RCM and looked it over.

Checked all fuses and they are good. Three of the pins for the connectors were slightly brown and worried me until I figured out that they were just not connected to anything.

I found that the copper track for the F1 fuse (traction control) was pushed out making poor connection with the fuse. Unfortunately this was probably caused by me pulling and reinstalling the fuses to check them before taking it out of its housing.
After pushing the track back onto the fuse and reinstalling it I still have the same issues.

The board could use a solder reflow for sure and that is where I will be starting next. There was also evidence of flux on the horn relay area. Maybe previous doing, don't think it would come from the factory that way.

I couldn't see any visible issues with the relays. Will investigate further after I get the broken solder joints sorted.

Curious is there an Ohm range I could test the brake light switch for?

Thanks for the help