Just a follow up...way late. Had to bite the bullet and have the CEM replaced. Brake lights work as they should now. Now to figure out that pesky P0420 error I'm getting. Why is it every time a mechanic opens the hood of this thing it costs me $1000 or more?

10/17 & 10/18 are the rear lights. 10/19 is the center brake light. I would be checking connection B:3 on the REM ... see attachment. Rick, I looked at the file you sent me yesterday and to be honest, on first glance, I thought it was just a schematic of the fuses and such but when I had a chan...

Thanks SuperHerman. I didn't have a ton of time last night to work on it, but I did check the brake light bulbs and one of them did look as if it was ready to blow. It still worked but the glass was brown on one side of it. I replaced both right and left bulbs but I'm still getting the message. I di...

Thanks Rick I'll take a look at it tonight. On a side note, the pdf that you attached, is the whole booklet downloadable somewhere on the internet or on this website? I've been looking for a wiring schematic for the 06 but could only find 05 and 08 and higher.

Hey all, I just bought a used 2006 xc90 and literally the next day, a 'check stop lamp' message has begun to intermittently pop up on the message screen. If I cut the engine off and turn it back on, the message goes away (usually) and both left and right brake lights DO light up. After a couple of m...