77 wiring issues

friend workin on 77 mgb.no turn signals.wiring has been butchered.any chance any1 has schematic.thanks

mgbexperience.com has wiring diagrams in the tech pages. A common problem is the hazard switch. Another common problem is grounds. Have your friend turn the hazards on and off a few times. Another common problem is grounds. I also reccommend getting a Bentley manual. You may be able to find one on ebay. If your friend has to replace the harness, have him try britishwiring.com, they have gotten a lot of good reviews.

I made an enlarged copy of the diagram for my car and wrote in the names of the parts. This made reading the diagram easier to follow. Some people have large copies lamenated and use dry erase markers to check off circuits as they troubleshoot electrical problems