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Expert Answers about Ford Transit T250


  • Troubleshooting Curt TriFlex Brake Controller C24VV Sending Constant Power To Trailer Brakes
  • I am sorry to hear you are having an issue with the Curt TriFlex trailer brake controller # C24VV in your 2017 Ford Transit T-250. I recommend using a circuit tester # PTW2993 to test the wires on the controller. The most common cause for this issue is when the red brake signal wire is connected to constant power and not the cold side of the stop light switch that only has power when the brake pedal is pressed. If the red wire on the controller is connected correctly to the cold side...
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  • Brake Controller and Wiring Recommendation for a 2015 Ford Transit T250
  • You will need to start with a 4-way (if you do not have one). For that you would want the # C56327. From there you would need to convert the 4-way to a 7-way so that you can install the brake controller. For that you will want the Brake Controller Install Kit and 7-Way Adapter part # ETBC7. I attached installation instructions and an install video for this product as well. For a brake controller I would recommend the Prodigy P2 Brake Controller part # 90885. This is our best selling brake...
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  • Troubleshooting Trailer Lights Staying on Constantly
  • There are a couple of reasons why your trailer lights may be staying on constantly, starting with a corroded connector. What corrosion does is cause a short which can lead to the lights staying on, and when you unplug the connectors they would, of course, turn off. So start by checking there, and if you can't clean the corrosion, you can replace the connectors on either the side of your Transit or trailer. I'm not sure if you have a 4-way or 7-way but if you have the factory tow package...
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  • Troubleshooting Tekonsha OEM Replacement Wiring Harness 22114 Not Having Power On 2016 Ford T250
  • Since the Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector # 22114 you installed on your 2016 Ford Transit T250 does not have power you will need to confirm that the 3 in-line fuses are connected to the battery, and that the fuse is installed and not blown. I included a video of the # 22114 being installed and a wiring diagram showing the 3 in-line fuses.
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  • Trailer Running Lights Not Working when Connected to 2017 Ford Transit T250
  • You can determine if the vehicle side is the issue by testing its trailer connector with a circuit tester such as # PTW2993 or a meter if you have one. If the running light pin shows power when the vehicle headlights are on, then the issue is on the trailer side. If it does not show power, then the issue is on the vehicle side. The easiest thing to check is the trailer connector itself (on the vehicle and on the trailer). If there is enough corrosion then there won't be a good connection...
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  • Troubleshooting Overloaded Vehicle Harness On a 2015 Ford Transit T250
  • That sounds correct to me. When you cut off the Curt T-Connector Vehicle Wiring Harness # C56327 converter box, it tried to pull all the power for the trailer circuits off the vehicle harness on your 2015 Ford Transit T250. It hopefully only damaged the fuses and not parts of the vehicle harness. Be sure to check the power wire that ran to the converter and see if the fuse was damaged or any of the harness is damaged as that would explain why it was not working when you recently tried to...
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  • Troubleshooting No 12V Power at 7-Way After Installing Tekonsha Wiring Harness on Ford Transit
  • When testing the 7-Way connector from the Tekonsha OEM Vehicle Wiring Harness # 22114 that you recently installed, the 12V pin (1:00 o'clock position) should have constant power with the vehicle running. If you are not getting any voltage, then I simply recommend making sure that all the connections at the battery on your Ford Transit are securely attached. The body harness from the T-One Kit should be run to the vehicle's battery under the hood. The black wire will connect to the positive...
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  • Easy to Install Brake Controller in 2017 Ford T-250 Transit
  • I can help you wire in the P3 brake controller part # 90195 to your 2017 Ford Transit but to our knowledge your vehicle does not have any brake controller install wiring so you'd have to run a few wires to complete the install...or you could use the Curt Mobile Echo part # C51180 which gives you the same great brake controller performance as the P3 but has the advantage of having a super easy install. Basically you'd just plug this straight into your 7-way, sync it to your smart phone,...
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  • Does a Trailer Brake Controller Need Connected On Tekonsha Harness 22114 For Charge Line To Operate?
  • The brake controller harness does not need to be wired in for the Tekonsha OEM Replacement Vehicle Wiring Harness # 22114 to work on your 2018 Ford Transit T250. There are 2 power wires that must be connected for the rest of the harness to function properly. The red wire from the harness uses a 15amp fuse to the battery and the black wire on the harness uses a 30amp fuse to the battery. The black wire is what carries power for the charge line on the 7-way. I have included an image of...
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  • Troubleshooting 2018 Ford Transit 150 With No Power to Aftermarket 7-Way Trailer Connector
  • If you have the Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector # 22114 there are 3 in-line fuses for you to check. These fuses will be located near the battery. I've attached a diagram to assist.
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