rowland91

Any other ideas replaced fuse

blue thunder06

maybe the vss "vehicle speed sensor"

rowland91

Thanks im gona replace that hope it works

Mod (Ret.)

Have you installed any LED bulbs in the rear taillights, or complete LED taillamp asseblies recently?

Pity7700

Does your horn work?

rowland91

Ya my horn works and ya i did the led tail lamps

Fergusmj

If the CC stopped working after you put the LED tail lamps in, that is probably it. Did you recently put them in?

rowland91

Ya about 3 weeks ago and the cc stoped after that.

18_F-150_XLT_Screw

iTrader: (1)

Since you did LED's you will need to get the resistor.... the Cruise Control system uses the a voltage sensing circuit based on on the rear brake light.... If it's on then the cruise doesn't work... the LED's confuse and cause it not to work properly. You need something like this to make it work properly....http://www.superbrightleds.com/cgi-b...gleBase#RL-650

although I would change them back out for stock lights first, just to confirm it's the LED causing the issues.

Sampson01

Use an electronic flasher should solve the problem.