Wiring problem

[Derekinman]

Hi, my left rear indicator/ flasher and door repeater have stopped working, although front and other electrics fine, any ideas as to what I should do/ check please?

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[ORRadtech]

Some models, especially the earlier ones, had problems with wires breaking in the wire bundle from the body to the trunk lid. That's where I'd start looking.

 

[Cobra Jet]

Hi, my left rear indicator/ flasher and door repeater have stopped working, although front and other electrics fine, any ideas as to what I should do/ check please?

Trunk harness issues:
The bad harness is usually located on the right side (passenger side) on the S550's. It's a very common issue with the 2015-2017's.

Here's some threads that will help. Harness location and fixes: https://www.mustang6g.com/forums/th...op-working-heres-the-fix.117245/#post-2465359

https://www.mustang6g.com/forums/th...op-working-heres-the-fix.117245/#post-2465359

Trunk lid specific:
https://www.mustang6g.com/forums/threads/2015-mustang-gt-trunk-latch-will-not-open.103386/

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If you're having issues with the rear taillights:

Post #25 of this thread:
https://www.mustang6g.com/forums/threads/tail-light-out-then-back-on.101551/page-2

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