Thanks Herman - 1. Battery appears to be A1 although I have to periodically trickle charge when flat.
2. OK - will do.
3. Have tampered with brake switch plug but no change to problem.
4. All other lights function correctly
- How is your battery
- Check for fault ground connections
- If you pull the brake switch plug off, does it still happen
- Do the other light function normally
My guess is either LSM or a bad connection