No trailer brake or turn signal on Ford, F250, 2011.

590

Asked by msgjbeason Apr 09, 2016 at 12:18 AM about the 2011 Ford F-250 Super Duty

Question type: Maintenance & Repair

Ford, F250, 2011. Factory towing package.
All lights work on truck. Dash reeds (trailer
connected) when trailer is plugged up. Turn
signals, brake and hazard lights do not work
on trailer. Have checked I think ALL fuses
and relays. What is next? Tennisshoe sent
picture. I have different shaped fusebox and
no relay between fusebox and master
cylinder.

12 Answers

145

how many trailers have you tried this on? maybe its the trailer itself. if not sometimes when your tow cable on the tuck isn't protected properly it breaks as in the cable hangs of your truck while you drive

10 people found this helpful.
590

After two weeks of searching and trying everything that was suggested, (BJB fuses) #100, 25A, (trailer tow relay) it works! BJB = Battery Junction Box.

59 people found this helpful.
90

Thank you for the advice I got my problem figured out you saved me at least $200.00 it was a $4.99 fuse

9 people found this helpful.
90

Thanks for this. Was ready to throw money at the dealer until I read this.

9 people found this helpful.
20

Thanks for the post. I had the same issue on 2013 F250 with trailer lights. Fuse 100 (20amp) resolved the issue.

2 people found this helpful.
30

Fuse 100! Thank you so much for that. I replaced fuse 100, a 30A fuse on my 2012 F350, and everything works now.

3 people found this helpful.
40

Me too, fuse 100! Had me confused until I found this thread...thanks msgjbeason3

4 people found this helpful.
30

Ditto: Thank you. I missed this one - Fuse #100. All is working again.

3 people found this helpful.
60

I'm not sure if this will help anybody else having a similar issue but I found this repair site that has a tutorial for diagnosing and repairing flat deck trailer signals. https://www.wrenchxd.com/howto/5f2c714d3a640e8b3678069d

3 people found this helpful.
20

Is this the same on a 2016 f250 Not getting any power to my trailer rakes

2 people found this helpful.

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