Toyota Repair: Brake lights 1992 cressida, broken wires, wire harness

Question
Have 92 cressida(japan made). It has no brake lights and brake light warning on dash stays on. I have replaced all bulbs in the tail(had all checked before installing). checked and replaced fuses. Short tested brake light switch. It´s OK. Pulled the connector in the trunk and short tested brake light connections, no juice. Other than a broken wire in a harness is there any, sensor, relay or other fuse in the line I might check before pulling the wiring harness apart and checking every 6 inches. Thanks so much for any help you may give me.

Answer
The problem is probably in the wiring in the trunk and where the harness runs along the trunk hinge, open the wire harness and check for any broken wires, there is also a tail light relay mounted in the trunk on the left side but I'm not sure if it can affect the brake lights but locate it and check it anyway, remove it and remove the cover and look for burned areas on the circuit board.