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ulie5

Trailer Brake Problems

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ulie5

Just bought a 2004 VLX and towed it home. Trailer pulled great. Upon trying to back it into the garage the brakes would lock up. I contacted the seller and he said the cylanoid should release this when the truck was in reverse. Needless to say I was unsuccessful with this. I had to use a piece of metal wire to connect the cylanoid to a hot spot on plug, I also tried with my sisters 99 Expedition. No luck with that either. I have a 2004 boatmate trailer and a 1999 F-150. Can anyone help me out with this.

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Liquidmx

Does the trailer brake line have a 5 pin connector? If so you also need to have a 5 pin connector at the vehicle end otherwise that last pin doesnt see voltage. That last pin is typically the brake lock out wire anyways. One thing I do personally is to simply rotate the plug backwards so that the 3 male plug ends hit the 3 female and teh 1 female is hanging off the end. Whenever I am backing up I just hop out for a quick second and rotate that plug. Then again I could just take the time to run a single reverse triggered wire, I just havent had time.

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JeffK

There was a problem with Ford trucks and them putting the incorrect relay in the truck's electrical system causing it to not power the B/U light circuit. You might want to talk to your Ford dealer before you start running new wires.

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VinRLX

In the meantime, flip the electrical connector as mentioned above and make sure your lights are on. Or, you can use something to manually lock out the trailer brakes (stick a socket in the surge mechanism, etc.).

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RTS

If you're going to use the temporary "flip" method, make sure you flip it back before leaving to go down the road, or you'll have no brakes and no lights for the trip (speaking from experience)

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CarveItUp

First off, I'm assuming that you're using the round 7-wire connector on the truck and not the flat 4-wire. The flat 4 will not have a back up signal wire.

We had an '02 Ford and the back up circuit relay was not installed. It was included in a plastic bag with the electric trailer brake wiring harness.

You can check the back up signal lead using a volt meter at the wiring receptacle by the hitch receiver. The pin-outs should be in the owner's manual (it's a standard seven-wire receptacle but I don't remember which lead off the top of my head).

At least you discovered this while backing into your driveway. I found out about ours on a busy boat ramp. Mad.gif

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electricjohn

You can look in your 7 pin connector and see if there are 4,5, or 7 electrical points in there.

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chathamsolutions

ulie - welcome to the site and to owning Malibu boats.

Looks like you've gotten the answer to your Q. Good luck with your new boat.

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ulie5
ulie - welcome to the site and to owning Malibu boats.

Looks like you've gotten the answer to your Q. Good luck with your new boat.

Thanks everyone. I am using the seven pin connector and I guess I will check with Ford before I start running wire.

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WakeGirl

One other thing to check is the fuse box on the tow rig. It's very common for trucks to have a fuse for the backup lockout & it's also very common to blow that fuse.

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jayjoans

Wakegirl- since I'm too lazy to get out of my chair and go figure it out.... will this fuse you speak of effect the reverse light on the tow vehicle? I noticed last week that my Suburban has the reverse lights go on, but not on the trailer. I thought it would end up being a ground on the trailer issue, until I hooked it up behind my Titan and the reverse lights (and brake lockout) worked just fine on the trailer.

...wondering if I should start at the fuse you speak of.....

Edited by jayjoans

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VinRLX

fuse boxes are generally behind a panel in the cabin of the vehicle. However, I remember hearing about another fuse (particular to Ford?) under the hood.

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CincyKid

I have the same problem with my Ford Expedition. There is a second fuse box under the hood, and from what I could tell from the manual the fuse for the backup lockout is in that box. I checked that fuse and it looked OK but replaced it anyway. Still no luck. I gave up and just flip the connector as recommended earlier. This is not a problem with my Grand Cherokee. Something with Fords I guess.

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ulie5
I have the same problem with my Ford Expedition. There is a second fuse box under the hood, and from what I could tell from the manual the fuse for the backup lockout is in that box. I checked that fuse and it looked OK but replaced it anyway. Still no luck. I gave up and just flip the connector as recommended earlier. This is not a problem with my Grand Cherokee. Something with Fords I guess.

CinctKid,

You can go to Ford and get a Relay, I believe it is number 203 check the manual to be sure. But it was not installed on my 99 F-150 or my sisters 99 Expedition. It was less than 10 dollars and took two seconds to install.

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WakeGirl
Wakegirl- since I'm too lazy to get out of my chair and go figure it out.... will this fuse you speak of effect the reverse light on the tow vehicle? I noticed last week that my Suburban has the reverse lights go on, but not on the trailer. I thought it would end up being a ground on the trailer issue, until I hooked it up behind my Titan and the reverse lights (and brake lockout) worked just fine on the trailer.

...wondering if I should start at the fuse you speak of.....

It may be the same, or not. Our Chevy has separate fuses for the backup lockout & the reverse lights. We had trouble with the reverse lockout when we first picked up the '06 & it turned out to be the fuse. The reverse lights worked just fine even though the lockout didn't.

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CincyKid

I have the same problem with my Ford Expedition. There is a second fuse box under the hood, and from what I could tell from the manual the fuse for the backup lockout is in that box. I checked that fuse and it looked OK but replaced it anyway. Still no luck. I gave up and just flip the connector as recommended earlier. This is not a problem with my Grand Cherokee. Something with Fords I guess.

CinctKid,

You can go to Ford and get a Relay, I believe it is number 203 check the manual to be sure. But it was not installed on my 99 F-150 or my sisters 99 Expedition. It was less than 10 dollars and took two seconds to install.

Thanks, I'll give Ford a call and see if that does the trick. Not a big deal to flip the concector, but just one of those little pains.

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Rizzo

Wakegirl- since I'm too lazy to get out of my chair and go figure it out.... will this fuse you speak of effect the reverse light on the tow vehicle? I noticed last week that my Suburban has the reverse lights go on, but not on the trailer. I thought it would end up being a ground on the trailer issue, until I hooked it up behind my Titan and the reverse lights (and brake lockout) worked just fine on the trailer.

...wondering if I should start at the fuse you speak of.....

It may be the same, or not. Our Chevy has separate fuses for the backup lockout & the reverse lights. We had trouble with the reverse lockout when we first picked up the '06 & it turned out to be the fuse. The reverse lights worked just fine even though the lockout didn't.

I have '98 chevy... same issue. Where's THIS fuse located? Meanwhile, back at the ranch, I fabricated a sweet little metal lock-out bracket for insertion behind the pin on th3e trailer and I'vbe had zero problems with the manual approach. Funny thing after years of owning and I/O with nothing like this ever happend. And I had to call the dealer for the poor man's fix it. I'm not sure all of these trailers '06 type, come with a lock out solenoid.

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RTS

A nickel works, too. Fabricated by Uncle Sam.

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VinRLX

OHhhhhhhhh, a nickel. . .

I tried a penney once. When I was done, it came out flattened and with 'Malibu' emblazoned on it. :)

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Baddog

I use two 9/16" nuts and fashioned a springy thingy out of a coat hanger to hold them in place before applying reverse pressure on the surge mechanism.

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Rizzo
I use two 9/16" nuts and fashioned a springy thingy out of a coat hanger to hold them in place before applying reverse pressure on the surge mechanism.

I saw where you can pick up springy thingys at wally's 10 for a buck. That's a great idea I'm makin' one. You can't begin to imagine how high my BP reached after I dragged this huge piece of plastic crap (malibu)home, for the first time, and then discovered it wouldn't just be easily "backed up" a slight incline into the shop... Man I was PO'd. Something entirely new and irritating.

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WakeGirl

Wakegirl- since I'm too lazy to get out of my chair and go figure it out.... will this fuse you speak of effect the reverse light on the tow vehicle? I noticed last week that my Suburban has the reverse lights go on, but not on the trailer. I thought it would end up being a ground on the trailer issue, until I hooked it up behind my Titan and the reverse lights (and brake lockout) worked just fine on the trailer.

...wondering if I should start at the fuse you speak of.....

It may be the same, or not. Our Chevy has separate fuses for the backup lockout & the reverse lights. We had trouble with the reverse lockout when we first picked up the '06 & it turned out to be the fuse. The reverse lights worked just fine even though the lockout didn't.

I have '98 chevy... same issue. Where's THIS fuse located? Meanwhile, back at the ranch, I fabricated a sweet little metal lock-out bracket for insertion behind the pin on th3e trailer and I'vbe had zero problems with the manual approach. Funny thing after years of owning and I/O with nothing like this ever happend. And I had to call the dealer for the poor man's fix it. I'm not sure all of these trailers '06 type, come with a lock out solenoid.

Sorry Rizzo, didn't see this yesterday. Our fuse was in the fuse box that's located under the hood. Your owner's manual should have a diagram of what fuse is for what (it seems like on our '01 there's about 3 pages of fuse diagrams Crazy.gif ). I don't remember exactly what it was called, but I do remember looking for anything that had to do with either backup lights or trailer lights. We pulled fuses one at a time until we found the right one & sure enough it was blown. That cured the problem for us.

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Rizzo

Thanks man, I'll give it a search this weekend I hope it's this simple to fix.

Sorry Rizzo, didn't see this yesterday. Our fuse was in the fuse box that's located under the hood. Your owner's manual should have a diagram of what fuse is for what (it seems like on our '01 there's about 3 pages of fuse diagrams Crazy.gif ). I don't remember exactly what it was called, but I do remember looking for anything that had to do with either backup lights or trailer lights. We pulled fuses one at a time until we found the right one & sure enough it was blown. That cured the problem for us.

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Baddog
Thanks man, I'll give it a search this weekend I hope it's this simple to fix.

Sorry Rizzo, didn't see this yesterday. Our fuse was in the fuse box that's located under the hood. Your owner's manual should have a diagram of what fuse is for what (it seems like on our '01 there's about 3 pages of fuse diagrams Crazy.gif ). I don't remember exactly what it was called, but I do remember looking for anything that had to do with either backup lights or trailer lights. We pulled fuses one at a time until we found the right one & sure enough it was blown. That cured the problem for us.

Ummm, FYI, Wakegirl is a girl.

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VinRLX

Well, she types like a guy. Crazy.gif

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