Trailer Brake not working - Ford Powerstroke Diesel Forum
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post #1 of 17 Old 04-04-2011, 04:07 PM Thread Starter
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Trailer Brake not working

I bought a trailer brake controller from autozone with a plug and play harness and it lights up reading E1 (trailer not connected) when i have no trailer on. The weird thing is as soon as i turn my running lights on the controller shuts up. I learned this the hard way when the trailer breaks locked up doing 15... anybody know whats wrong?




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post #2 of 17 Old 04-12-2011, 08:54 AM Thread Starter
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post #3 of 17 Old 04-12-2011, 09:05 AM
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It plugs directly into the grey connector behind the lower dash panel cover or did you have to wire a plug to the controller and then plug it into the connector?

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post #4 of 17 Old 04-12-2011, 09:07 AM Thread Starter
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Well i bought the harness from autozone with the connector to the brake controller and the Ford plug. It plugged right in.




2001 F-350 XLT
'05 Conversion
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Tuff Country 2.5in Leveling Kit
MBRP Muffler Delete W/ Homemade 5in tip
aFe Stage 2 Cold Air intake
Wicked Wheel
315/75R16 Mickey Thompson Baja MTZs on Procomp 6001s
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post #5 of 17 Old 04-12-2011, 09:07 AM
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What controller? Is there a setup procedure? Is the P-n-P Harness is for the Ford?
Are you using the 7-pin plug for the trailer?
Have you pulled this trailer before with a controller?


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post #6 of 17 Old 04-12-2011, 09:09 AM
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Quote:
Originally Posted by RHFDpowerstroke53 View Post
Well i bought the harness from autozone with the connector to the brake controller and the Ford plug. It plugged right in.
Ok, so the wiring coming out of the controller had a plug on it and it plugged directly into the harness you purchased and the harness plugged directly into the factory connector? Sorry for kinda the same question, just wanting to clarify.

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post #7 of 17 Old 04-12-2011, 09:15 AM Thread Starter
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yes its just a ford PnP harness. I have pulled the trailer before but i had to unhook my controller so the breaks wouldnt lock up. The trailer isnt mine. Im not sure what controller it is. Im in class now but ill look when i can. 7PIN connector to the trailer too. It works fine until i turn my lights on and then it shuts off. I have a feeling the harness may be wired incorrectly and the wires are not matching up correctly. I bought stupid autozone junk because i was in a pinch. not its biting me in the a$$




2001 F-350 XLT
'05 Conversion
DP-Tuner
Tuff Country 2.5in Leveling Kit
MBRP Muffler Delete W/ Homemade 5in tip
aFe Stage 2 Cold Air intake
Wicked Wheel
315/75R16 Mickey Thompson Baja MTZs on Procomp 6001s
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post #8 of 17 Old 04-12-2011, 09:19 AM
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Quote:
Originally Posted by RHFDpowerstroke53 View Post
yes its just a ford PnP harness. I have pulled the trailer before but i had to unhook my controller so the breaks wouldnt lock up. The trailer isnt mine. Im not sure what controller it is. Im in class now but ill look when i can. 7PIN connector to the trailer too. It works fine until i turn my lights on and then it shuts off. I have a feeling the harness may be wired incorrectly and the wires are not matching up correctly. I bought stupid autozone junk because i was in a pinch. not its biting me in the a$$
I say the trailer is wired wrong. It may be wired to work for the truck of the guy that owns the trailer but something doesn't sound right. If your harness and controller are completely plug and play then it shouldn't be the problem unless there is more than one harness and you got the wrong one.

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post #9 of 17 Old 04-12-2011, 09:22 AM Thread Starter
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that could be too. he towed it with his chevy 2500 and he has a chevy 5ton too. I dont know why the controller would shut off when i turn my lights on tho




2001 F-350 XLT
'05 Conversion
DP-Tuner
Tuff Country 2.5in Leveling Kit
MBRP Muffler Delete W/ Homemade 5in tip
aFe Stage 2 Cold Air intake
Wicked Wheel
315/75R16 Mickey Thompson Baja MTZs on Procomp 6001s
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post #10 of 17 Old 04-12-2011, 09:24 AM
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Quote:
Originally Posted by dhanna6powerstroke View Post
I say the trailer is wired wrong. It may be wired to work for the truck of the guy that owns the trailer but something doesn't sound right. If your harness and controller are completely plug and play then it shouldn't be the problem unless there is more than one harness and you got the wrong one.
That's what I'm thinking too!


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