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Expert Answers about Blind Spot Detection


  • Troubleshooting A Cub Blind Spot Detection Tail Light Kit That's Not Detecting Vehicles
  • When testing the blind spot detection function of your Cub # CU22XR are you driving at speeds exceed 12mph or is the vehicle sitting and you're trying to test this function? if the vehicle isn't moving at speeds 12mph and up then the sensors will not activate. Other than just resetting the unit the only thing you can really do is make sure that are the connections are correct and fully in place. I recommend reaching out to Cub to see if maybe you just got a defective sensor and if they...
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  • Troubleshooting Error Messages on Dash of 2017 Hyundai Santa Fe After Brake Controller Installation
  • The symptoms you describe for your Tekonsha PowerTrac Electronic Brake Controller # 39523 typically result from connecting the controller's red input signal wire to the wrong circuit on the vehicle. This red wire should connect to the cold side of the brake light switch. This circuit is the one that goes hot ONLY when the brake pedal is pressed but at no other time or with any other function activated. The issue can arise from the power draw on that incorrect circuit, which after a period...
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  • Blind Spot No Longer Available On 2017 Ford Escape After Installing Brake Controller
  • As long as your 2017 Ford Escape has the factory tow package, Tekonsha Prodigy P3 Trailer Brake Controller # 90195 and Universal Installation Kit # ETBC7 is all you would need. Your blind spot monitoring should still work with the brake controller installed and no trailer hooked up. I would make sure all your connections on Universal Installation Kit # ETBC7 are correct and tight; I attached a diagram to verify you have it installed correctly. If all connections are tight and everything...
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  • 118540 Trailer Harness on 2019 Ford Explorer Causing Blind Spot/Cross Traffic Monitor Malfunction
  • Per our records, you purchased the # 118540 harness. I checked with my contact at Tekonsha, who tells me that it sounds as if you have the # 118540 harness you purchased plugged into the wrong connector under the vehicle. There is a gray connector and a black connector. The # 118540 should be plugged into the black connector. If it's plugged into the gray connector, it would cause problems such as those you described.
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  • How to Remove Blind Spot Mirrors and the Adhesive that is Left Behind
  • To remove the Hot Spot Mirror # 49403 you could take floss and put it behind the mirror surface and then work the floss back and forth putting pressure on the adhesive, like you were flossing your teeth, until you have worked through all the adhesive and the mirror comes off. To remove the adhesive residue from the mirror there are a few different methods. You could use alcohol, wd40 or cooking oil on the adhesive and then scrub it till it all comes off.
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  • Troubleshooting Overload Warning on Prodigy P3 Brake Controller on 2002 GMC Yukon XL 2500
  • According the the manual, the overload warning appears when the P3 # 90195 detects an excessive current overload condition during operation. The first thing I would do is check the 7-way connection on your 2002 GMC Yukon XL and trailer for any corrosion and clean it out. You may also want to apply dielectric grease like # 11755 for added protection once this is done. If you are still getting the warning you should check all of your ground connections for the trailer brakes. Make sure they...
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  • Troubleshooting Brake Controller in 2008 Ford F-250 Gas Pickup
  • There are many reasons why a trailer brake controller could fail to operate. Since I do not know anything about your controller or its installation, I can give you some general guidance. If the controller does not light up (if it appears not to have power) then start by testing the black wire that delivers 12V power to the unit. Use a circuit tester like # PTW2993. If you do not get a signal on the black wire, then check your fuse/circuit breaker. You should have 12V power on that black...
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  • Does Light Kit for Railed Cargo Carriers 20174 Include Running Light Function
  • Yes, the Light Kit for Railed Cargo Carriers, Part # 20174, does include the tail/running light function. These cargo carrier lights should illuminate whenever your vehicle turn signals, brake lights and tail lights are on. You can start by unplugging the 4-pole connector and confirming that the vehicle running lights operate properly. Next use a circuit tester like # PTW2979 on the vehicle 4-pole connector to verify that it is passing a running light signal. Ground the tester and test...
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  • Lamp Out Warning on 2020 Ford Explorer when LED Hitch Cover Attached
  • I have a solution for you, so never fear-we've actually seen this before on the newer Ford trucks, which will have the same lamp out detection system. If you are getting an error code on your 2020 Ford Explorer when using the Ford LED Lighted Trailer Hitch Cover # CR-007F it's most likely reacting to the lower amp draw from the LED light and the computer is sensing that a lamp might potentially be burnt out, but it also could just be corrosion on the 4way. I would start by making sure...
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  • Troubleshooting Trailer Brakes Not Activating that are Receiving Power
  • First thing I would check is the ground for the brake assemblies. It sounds like the power is making it back to the assemblies just fine, but if they weren't grounded properly your controller wouldn't be able to detect them. I would check the grounds of the assemblies, making sure that they are connected to a clean metal surface. You can also try running a jumper wire from the assembly ground to the main ground of the trailer. This is actually the preferred method for grounding brake assemblies. I...
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  • Valley Journey Trailer Brake Controller # 52650 Has Constant Brake Signal at Trailer Connector
  • If your Valley Journey Brake Controller # 52650 delivers a constant brake output signal to your trailer connector you can use a circuit tester such as # PTW2993 to determine if the fault is in the controller itself or elsewhere. There are several potential causes for this issue. I have linked a help article that will be useful to you as you troubleshoot. Please note that in a separate email I have forwarded the instructions for the now-discontinued Journey. You can start at the controller...
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  • Solution for Needing Replacement Monitor/Camera FOD43TA-BL FOC48TA-BL
  • Furrion discontinued your FOC48TA-BL camera and the compatible monitors. You will need to upgrade your camera and monitor to one of the new Furrion Vision S systems. This is required as they use a different communication method and will not work with older cameras and monitors. We have a 4.3" # FOS43TASF, 5" # FOS05TASF or 7" # FOS07TASF system for you to choose from. The 5" and 7" systems will allow you to view up to 4 cameras. This will allow you to add an additional Camera # FCN48TASF...
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  • Troubleshooting Lost Brake Circuit Connection with HydraStar EOH Adapter Module HBA-CAM
  • The most common cause for a connection problem with the HydraStar Electric Over Hydraulic Actuator Adapter Module # HBA-CAM is a corrosion issue in either the vehicle 7-way socket or the trailer's 7-way plug. Even slight corrosion, which can appear as a whitish or greenish film on the contact surfaces, can block the brake circuit's signal and cause the brake controller to not see the trailer and the # HBA-CAM in the circuit. This can often be corrected with a cleaning using an electrical...
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  • Trailer Tires Showing Excessive Wear on Inside Edges of Tread
  • Typically a trailer axle will have some camber in it - some bend - such that when it is not loaded the tops of the wheels bow outward slightly, with the outside edges of the tire treads making first contact with the ground. This allows that when the trailer is loaded with weight the axle will be pushed downward to a flatter position with the tire treads level on the ground. Please refer to the linked photo showing an axle and its camber. With your trailer unloaded look at it from the rear...
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  • Troubleshooting Trailer Lights Not Functioning When Tow Vehicle Headlights Are Turned On
  • Since I do not know what tow vehicle or wiring harness you have I will try to give you the best general guidance I can. Usually the best way to troubleshoot your wiring issue is to disconnect the trailer from the truck's 4-pole and test each one individually. However, based on your description of the problem - all trailer lights working until you turn on the vehicle headlights - there is one most-likely cause that should be easy to correct. This type of issue is typically related to a...
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  • Troubleshooting Overload Message on Draw-Tite Activator Trailer Brake Controller 5504
  • When the Draw-Tite Activator Trailer Brake Controller # 5504 displays a flashing OL (overload) message this indicates that the unit has detected a short in the brake output circuit, the circuit commonly carried on a blue wire. You'll need to trace the trailer's brake circuit wire (check the linked article to help you find the correct one on your 7-way plug). Check the wire for signs of worn or cracked insulation all along its length, from the trailer connector to the brake assemblies,...
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  • Taillights Not Working on Trailer when Towed by a 2004 Volvo XC90
  • It sounds like you might have a weak ground connection or corrosion in one of the bulbs on the taillight circuit on the trailer. Since you tested with a circuit tester and a different trailer is working properly the issue should be found on your trailer. The wiring kit, # 119250KIT, on your 2004 Volvo XC90 has a sophisticated signal converter that can detect weak grounds and corrosion that can cause bleed over on the trailer circuits and will cut off the power to that circuit. Plugging...
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  • Troubleshooting Haulmark Trailer Right Brake Light
  • Since trailer wiring uses one common circuit for both right-hand brake lights and turn signals it is possible that you have a bad bulb in your light fixture. This is easy to check and the cost to replace a bulb is minimal. If you have a circuit tester like # PTW2993 you can test the connector on the vehicle to see if the correct brake light signal is present there. Have a helper step on the brake pedal while you apply the probe of the grounded tester to the pin for the right brake light....
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  • Troubleshooting Overload Message on Draw-Tite Activator Brake Controller
  • I spoke with my contact at Draw-Tite and he said the only way to clear the overload warning on your Draw-Tite Activator IV Trailer Brake Controller # 5504 is to correct the problem causing the message. The OL (overload) message usually indicates that the unit has detected a short in the brake output circuit, the circuit commonly carried on a blue wire. You'll need to trace the trailer's brake circuit wire and check the wire for signs of worn or cracked insulation all along its length,...
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  • Troubleshooting Low Output Voltage from Trailer Brake Controller
  • Your trailer brake controller should be able to output a full 12V signal when it is set for maximum power/boost. If you are measuring only 9.5V output then try testing right at the blue output wire at the back of the controller with a multi-meter like # PT89ZR while engaging the manual override control. Do this test with full power and boost selected on the controller. If you do not detect 12V here then the controller itself is bad. If you tested at the vehicle's 7-way then the issue could...
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