Mach 1 signal light problem

tony123 · June 12th, 2006, 08:22 AM

I am doing final assembly on our 69 Mach 1, here is the issue, 4 way flashers work fine, signal lights do nothing. I can jumper the pins on the harness (Dash side) and make them all work fine, when I hook up the harness going to the steering column, they do not. I have replaced the signal switch with a use one with the same results. Is there a way to test the signal switch? Also I do not entirely understand the signal system. The flashers have power on both sides of them. Seems like the signal switch is faulty, but, alot of work to replace again. Possible the used one I put in is bad.

Bossman351 · June 12th, 2006, 06:38 PM

If you can make them work by jumping power to each individual pin on the harness it would seem that either the switch that youre using is bad or the power source to that switch is bad. I would start by using a test light to check the power source that feeds the switch. If that is good the only other thing left is the switch.

June 12th, 2006, 08:22 AM	#1
tony123 Newbie Join Date: Jun 2006 Posts: 3	Mach 1 signal light problem I am doing final assembly on our 69 Mach 1, here is the issue, 4 way flashers work fine, signal lights do nothing. I can jumper the pins on the harness (Dash side) and make them all work fine, when I hook up the harness going to the steering column, they do not. I have replaced the signal switch with a use one with the same results. Is there a way to test the signal switch? Also I do not entirely understand the signal system. The flashers have power on both sides of them. Seems like the signal switch is faulty, but, alot of work to replace again. Possible the used one I put in is bad.

June 12th, 2006, 06:38 PM	#2
Bossman351 Hardcore Enthusiast Join Date: Aug 2005 Location: On the trailer.......broke. Posts: 1,261	If you can make them work by jumping power to each individual pin on the harness it would seem that either the switch that youre using is bad or the power source to that switch is bad. I would start by using a test light to check the power source that feeds the switch. If that is good the only other thing left is the switch. __________________ http://www.moddedmustangs.com/forums...ic137.html.jpg

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