I m trying to locate the brake lights "relay" opened the rear trunk left side panel there are NO relays on that side just fuses and big plugs
where is it ? both brake lights don't work

sorry wish I had wiring diagram,,,,

 

Here's one - there is no brake light relay, power comes directly from the REM. Does the 3rd brakelight work? Are there any codes stored in the CEm or REM related to lighting? 3/9 is the brake light switch.

 

appreciate that diagram Hoonk .
none of the brake lights work , I m thinking maybe the brake switch under the pedal may need adjustment or replaced ! also haven't pull any codes yet . I can do that with my regular scanner later today - I m still waiting to buy a VIDA2GO set up from diaglaptops when it becomes available ..the car

Other issue found with anti-skid restricted service warning sign on dashboard - I need the volvo dice set up to try to calibrate it as I understand ..

 

Do you have 12v at fuse f9 on the CEM? (that sends power to the switch)

 

I m confused again ! LOL
is the CEM located under the dash up front ? or in the rear left panel ? as some youtubers show however there are no relays at rear panel ! should I be looking on front ?

 

 

adjustment of the brake switch DID the trick... all working now .. thanks