[petek]

If I remember correctly, the signal for the brake lights goes through the turn signal switch on the column. The same switch also has the hazard light switch connected to it (it's a mess).

The brake light signal gets disconnected when the turn signal switch is set to signal a turn.

Something to try: press on the brake pedal and move the turn signal lever. See if the brake lights flash on while the lever is moved. It could be something as simple as dirty contacts at the switch (or at the large flat connector on the column).

And John -- I agree! These sorts of problems can be actually enjoyable to troubleshoot ... when you've got the car right there to work on! Troubleshooting by email or phone on a car off in the distance can be frustrating!