Electrical 1989 Fox no brake lights.

[Buddah]

Hello everyone and thanks for taking the time to read. On my 89 Fox I have no brake lights. Now I have read a bunch of forms and Im coming up short here. All other lights work but no brake lights including the 3rd brake light. I have replaced the MFS, Headlight switch, hazard switch and brake light switch on the pedal (have confirmed power going in and out when the switch is activated). I have also checked the ground in the trunk to make sure it was good and it was. (Battery relocated to trunk and tested from battery to taillight harness ground and no voltage drop) fuses are all also fine. I'm assuming a broken wire but I'm not sure which color wire that runs to back to activate the lights. I have a book but it's old and hard to make out and unfortunately electrical is not my strong suit. Thanks for any help

 

[jrichker]

Hello everyone and thanks for taking the time to read. On my 89 Fox I have no brake lights. Now I have read a bunch of forms and Im coming up short here. All other lights work but no brake lights including the 3rd brake light. I have replaced the MFS, Headlight switch, hazard switch and brake light switch on the pedal (have confirmed power going in and out when the switch is activated). I have also checked the ground in the trunk to make sure it was good and it was. (Battery relocated to trunk and tested from battery to taillight harness ground and no voltage drop) fuses are all also fine. I'm assuming a broken wire but I'm not sure which color wire that runs to back to activate the lights. I have a book but it's old and hard to make out and unfortunately electrical is not my strong suit. Thanks for any help

PM me your email address and I will send you a complete Ford Factory 89 Mustang electrical diagram set. The zip file is 2.5 MB and is too big to fit through Stangnet's email gateway.

The plug shapes on the diagrams match the plug shapes on the actual plug. The diagram is divided up by the layout of the car. The first diagram is for the very front of the car, and it works its way to the rear of the car page by page.

They are in a zip file format to reduce the size of the package. If you don't have Windows 7 or Windows 8, or later, you’ll need WinZip or other Windows archive tool to extract them from the zip file.. See www.majorgeeks.com - Download Freeware and Shareware Computer Utilities for a free download.

You will need the Adobe Acrobat viewer which is also a free download – www.adobe.com/products/acrobat/readstep2.html - Adobe Reader download - All versions