Hi everyone,
My uncle's 1970 Mach 1 was recently rewired with an American Autowire harness. Right now everything works (gauges, lights etc), except for the Warning/Idiot lights. The car has been in restoration for so long that we can't remember which lights should light up. Even then, with the new AAW harness, we don't know which lights should come on (Alt, Oil, Voltage?). Can someone tell us which warning lights light up during ignition? Also, any tips to start trouble shooting would be appreciated!

Thanks!

 

 

I think I can close this thread, but I'd like to post some more info in case it helps someone in the future. I went over to look at the car today and get some better pictures. The two warning lights are "Brake System" and "Seat Belts" The seat belt light was never hooked up and doesn't even have a bulb or wiring. The Brake System light used to work, so I'll try troubleshooting that. I found a post here: https://www.stangnet.com/mustang-for...estion.564118/ that gives some advice on how to test the lamp:

"I checked the owners manual and indeed the parking brake is not supposed to light the square in dash standard light but there is a rare option for a dime sized round brake warning light under the wiper switch and lighter that is supposed to do that - I went under the dash and found that I have no switch or wiring to the parking brake for that option. I also tested my brake pressure distribution switch by removing the plug and probing one prong at a time to ground with the ignition in the run position and found the brake warning light did come on indicating a properly working switch, wires and system. Seems as if all is well - it just has been so long since I have driven a 70 mustang on a regular basis that I had forgotten as I do not use the parking brake usually and when I did I was puzzled."