Hello. I have a 2002 Volvo v70 AWD. The center brake light works but the left and right brake lights quit working about 3 months ago. I replaced the relevant REM fuse and the brake lights still did not work. Found a forum thread where about 6 people had the same problem. They all said they replaced the brake relay and that fixed their problem. So I went to the volvo dealer and got the latest brake relay. They have had several updates on this relay I was told by the dealer. I put the relay in and the brake lights came right on and worked right for about 2 months. Then the brake lights went out again and came back on and went off and came back on several times with different durations from several days to a minute. I have a copy of the wiring diagram (u2dk.jpg (650×938) (imageshack.com)) and would like to check the signal from the relay to the outboard brake light fuse (11d/14 it says on the brake light wiring diagram) and after that fuse, but don't know where its located, and don't know what the signal should be before or after that fuse. Any help or any other suggestions on this would be appreciated. Thanks.
clifft

 

You may have a bad connection on 20/31 the brake light shunt. Or I have seen many melted connections at the bulb holder inside the lenses (and replaced many brake light assemblies)
My factory copies of wiring diagrams - do not show fuse d14 for a 2001 or 2002. That fuse (powering the outer brake lights) first appears in the 2003 wiring diagram.

 

Thanks hoonk. I appreciate your time.