No trailer brakes?
Junior User
Joined: Aug 2009
Posts: 73
Likes: 0
From: East Bethel,MN
Ford shop manual says verify stoplamps operate properly then turn key to on with no trailer connected-set the gain to 10 on the controller and slide the manual lever to the left to see if LED's light up and that message center says TRAILER DISCONNECTED or CHECK TRAILER.Does the trailer icon light up red or green to show connectivity?
FTE Leadership Emeritus
Joined: Sep 2000
Posts: 23,174
Likes: 1,678
From: Stephensville WI
Do the trailer brakes work if you hook another truck to the trailer? If not, the trailer is at fault. If so, the TBC system in your truck needs to be checked out.
Most of the time the cause is in the trailer, but not always.
Most of the time the cause is in the trailer, but not always.
Hotshot
Joined: Aug 2006
Posts: 17,398
Likes: 317
From: Whittier, CA
On an '05, you might not have brake power output unless you are moving at something like 25 mph. There was a design change early on because of complaints about that.
Suggest you carefully take a test drive to confirm whether they work.
Suggest you carefully take a test drive to confirm whether they work.
Thread Starter
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Freshman User
Joined: Feb 2008
Posts: 38
Likes: 1
All trailer lights work, truck recognizes trailer, no blown fuses found, no brake power at bumper or bed, no brakes with manual switch either, no dash codes, same truck and trailer setup just hasent been used much lately.................
