[Jim Sims]

Fuse 11 also feeds the backup lights and the brake lights. Has the engine been out lately or has the pedal cluster been worked on? When the engine is pulled leaving the transmission behind the wires connecting to the back-up light switch in the front of the transmission are often forgotten and pulled apart (the circuit for this switch goes through the 14 pin connector at the back of the engine). The wires are often fixed after such a mishap but can develop a short at the repair splice. I know of one instance where there was just enough current leakage at such a splice that all would be fine backing up and then as soon as the brakes were applied the number 11 fuse would blow. The extra current going to the brake lights exceeded the capacity of the fuse. Disconnecting the green and yellow wire (at fuse 11) going to the backup light circuit eliminated the fuse blowing until the wire to the back-up switch could be repaired. Also, the backup light switch could be bad or the connector to it loose. Also, check the brake switch/light circuit (the green and blue wire) attached to fuse 11. One can remove these wires by loosening the little screws that clamp them in place. If the problem goes away after disconnecting the circuit you know the short is there. Cheers, Jim