I replaced a cracked Rear Lens on a '93 with a decent one from an '89.
The circuit board on both is the same - D66552.
Now, the 2 rear brake lights don't work when the lights are on.
Any ideas would be appreciated.

Check fuse 7 or 12, I don't remember which controls it.. I swapped a 92 model assembly onto my 89 and had no problems..They were both left side units..By the way if yours is an automatic then you will not be able to take the tranny out of park if it has to do with anything in the brake electrical system before it goes back to the tailights. I think I said that right..
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Max..1989 244 DL 5 Spd., V15 Phase II Cam Bilstein HD, Turbo Swaybars, Poly Bushings all round, Turbo Wheels, Black leather interior, Electric mirrors, LED dash and gauge lights and now NEW ECODES with the turn signals, 1992 black 244 next project

First thing to check is the lower outer bulb holders. Right side must be white, left side must be black.

Post back if that doesn't solve the problem.

Good Luck,

Bob

:>)

I did actually swap a black bulb holder for the white on the right side.
Wow, I had no idea it made a difference. I'll check it later.
Thanks Bob.
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-Cool Volvo- 1982 240 4 Spd OD w/ 246K, 1989 240 5 Spd w/ 237K. Past proud owner of 1966 122, 1968 144, 1970 145, 1972 144, 1980 245

This definitely resolved the problem.
Thanks again Bob.