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Mustang Forums
SN-95 and New Edge Mustangs
Brake Lights Not Working
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<blockquote data-quote="BlackStang00" data-source="post: 16846242" data-attributes="member: 127325"><p><img src="https://www.svtperformance.com/attachments/9a03bd06-662f-42ca-9eab-ec56928e0f50-png.1770317/?hash=c1371ac6d61179975b1dc2a6467bfaa3" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p>This is the wiring diagram I’ve been using. Current flows from the fuses to the flasher then the mfs. I verified I have 12v on the light blue and white/red wires at the mfs. I haven’t been able to get to any of the wires easily to check for current after the mfs but before the tail lights. Since the parking lights work I know the grounds are fine. And when I use the wiper relay, the brake lights and front turn signals all come on steady so I know that circuit is fine as well. All signs point to the mfs but I have another one I plugged in and it didn’t make a difference. Or the flasher module is bad. Since I’m using a regular relay and not a flasher, it’s powering the hazard circuit continuously but that doesn’t explain why it’s not powering the turn signals when I move the stalk.</p></blockquote><p></p>
[QUOTE="BlackStang00, post: 16846242, member: 127325"] [IMG]https://www.svtperformance.com/attachments/9a03bd06-662f-42ca-9eab-ec56928e0f50-png.1770317/?hash=c1371ac6d61179975b1dc2a6467bfaa3[/IMG] This is the wiring diagram I’ve been using. Current flows from the fuses to the flasher then the mfs. I verified I have 12v on the light blue and white/red wires at the mfs. I haven’t been able to get to any of the wires easily to check for current after the mfs but before the tail lights. Since the parking lights work I know the grounds are fine. And when I use the wiper relay, the brake lights and front turn signals all come on steady so I know that circuit is fine as well. All signs point to the mfs but I have another one I plugged in and it didn’t make a difference. Or the flasher module is bad. Since I’m using a regular relay and not a flasher, it’s powering the hazard circuit continuously but that doesn’t explain why it’s not powering the turn signals when I move the stalk. [/QUOTE]
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SN-95 and New Edge Mustangs
Brake Lights Not Working
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