
Noticed yesterday that my left hand sidelight wasn't working... assumed the bulb had blown...
Took headlamp out... bulb fine... no 12v supply going to the sidelight bulb. The dipped/main bulb works fine. The earth connection on sidelight bub holder is good, but no +12v.
The plug is slightly corroded which I thought may be an issue, but I've stripped a tiny bit of insulation back to get some nice shiny copper... with a good proven earth... and there's definitely no power on the wire

Right-hand headlamp all works as it should.
Anyone have any idea where to look? I did have a look in the Bentley at wiring diagrams, but can't seem to find the sidelights (do our friends across the pond not have them, or call them something stupid!?)
I did have fuse box out the other day, and re-terminated some dodgy earths, but pretty sure I didn't disturb anything. (Took it back out to double check, also checked plug at rear of headlight switch).
Many thanks for any advice
