Troubleshooting Trailer Disconnected Alarm on 2018 Toyota Tundra with 2010 Airstream Trailer

Question

Question:

trailer disconnect alarm. Will this stop this alarm on my truck. The camper is a 2010 Airstream.

asked by: Harvey L

0

Expert Reply:

A trailer disconnected alarm has to do with the trailer brake controller pin draw on the 5 o'clock pin position on most vehicles. If you have a trailer connected and the alarm is on, you most likely don't have enough draw on that pin for the vehicle to recognize connection. Normally this is due to corrosion at the connection, but on a new truck, that most likely isn't the issue. You may want to clean the connections with sandpaper and use dielectric grease # 11755 to confirm a clean connection.

To test your pin connection and brakes working, you can use the brake controller manual override with the trailer connected and slowly increase the voltage to that pin. If the error alarm goes off then you know that voltage is the issue.

Toyota has had issues with this and there are many with the same issues. Truck by itself works fine, trailer checked out as fine, yet error when used together. Most people have moved to aftermarket brake controller like the Tekonsha Prodigy RF Wireless Trailer Brake Controller # TK94FR and that solves the issue because it doesn't utilize that brake controller output pin. Similarly you can the Curt Echo Wireless # C51180 which also does not utilize that pin.

The load resistor # DI34ZR you referenced will draw more power on the brake output wire when used on the trailer side of the connection, so that may solve the issue, but I can't confirm that fix as we haven't tested it with that error alarm yet.

expert reply by: Jason S

0

Answer 1

On the back of each brake backing plate, you'll find an oblong hole near the bottom, which might be covered with a mud and crud plug. Once you pry the plug out, you can use a brake adjusting tool like #W80630 to adjust the brakes. A flat…

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Answer 2

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Answer 3

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Answer 4

The manual lockout on your Atwood 85778 surge brake coupler is there so that you can back up the trailer without the brakes locking up on you. Yes you can safely tow your trailer with the broken manual lockout, you just have to make sure you…

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Answer 5

I would love to help you upgrade the suspension on your Twilight 2800 travel trailer. The MORryde Rubber Equalizers for Tandem Axle Trailers #MR87ZR that you referenced are a great solution but we do need to double check a few things. First is that…

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Answer 6

If your current springs have 5 leaves then going to a 7 leaf spring will increase the height of the trailer a little and make the trailer more susceptible to sway. Regarding capacity if you go with springs rated higher than what is required it will…

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Answer 7

In order to match up the wheel studs for your Reliable 1206 hub, we'll need to know the full dimensions of the wheel stud you're replacing. In addition to the total length of the stud and its diameter and thread pitch, we'll also need to…

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Answer 8

If you are needing the hub and drum assembly then you will want to go with the Dexter Trailer Hub and Drum Assembly #8-201-5UC3-EZ but if you are just looking for an idler hub then you will want part #8-213-5UC1 instead. These come with the correct…

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Answer 9

You will need the Red LED Trailer Clearance or Side Marker Light #328-K-52 or Amber LED Trailer Clearance or Side Marker Light #328-K-51 for your 2018 Forest River Sunseeker motorhome. These lenses have the same Top Command SAE-AP2-16 markings on the…

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Answer 10

If you are installing just the Firestone Ride-Rite kit, #F2400, and not also adding an on-board air compressor such as #F2158, then I would estimate that it should take about 2 hours to install the kit. That is for someone with some mechanical…

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Answer 11

For the LCI52-SB-86.5-68.5, the two ending measurements are: 1st - measurement from hub to hub, meaning the length of the axle in this case is 86.5 inches. 2nd - spring seat dimension where they're welded, meaning the spring seats are 68.5 inches…

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Answer 12

I agree it is the right time to upgrade to a Lithium charger/converter as not all are Lithium compatible. I recommend using the Progressive Dynamics Mighty Mini AC/DC Panel and Converter/Smart Charger - 60 Amp #PD4060K which is a replacement for your…

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Troubleshooting Trailer Disconnected Alarm on 2018 Toyota Tundra with 2010 Airstream Trailer

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