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Expert Answers about Subaru Forester


  • Trailer Wiring Doesn't Work on Forester
  • Thank you for your purchase from etrailer of the Wiring Harness # C56040. If your brake lights don't come on but turn signals do there are a number of wiring troubleshooting steps you will have to take. The first thing to do is take a look at your owner's manual to locate any fuses or relays and ensure they are all there and in working order. If they are, in order to determine the specific problem you will need a circuit tester like # PTW2979 to test the connector on your vehicle after...
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  • Battery Keeps Dying on a 2015 Subaru Forester While Flat Towing
  • To keep the battery on your 2015 Subaru Forester from going dead when flat towing it you will need the Battery Charge Kit # RM-156-25. This connects to the pin of the socket on your Forrester that receives 12V power from your motorhome. If you do not already have a way to feed the charge kit to the 7-Way on your motorhome then you can install the Blue Ox 7-Wire to 6-Wire, Coiled Electrical Cord # BX88206 on your Forester. You will want to run the line from the battery charge kit from the...
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  • Why Are My 53-Inch WingBar Evo Crossbars Not Fitting on My 2019 Subaru Forester?
  • I have a solution for you. The reason why the bottom slots of the 53-inch WingBar evo crossbars # TH711420 will not attach to the Evo Raised Rail Feet for Thule Crossbars # TH710401 is because the 53-inch version of the WingBar Evo Crossbars are too long for your 2019 Subaru Forester. With shorter crossbars, you will not need to cut the attachment slots longer to accommodate the fitment. In order for WingBar Evo crossbars to fit your Evo Raised Rail Feet, you will need the Thule WingBar...
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  • Troubleshooting Wiring Harness On 2015 Subaru Forester When Trailer Lights Do Not Work
  • Before you replace the OEM harness on your Forester you may want to check a few things. First, check the fuse for the trailer connector in the passenger compartment fuse panel. From my research the trailer connector fuse is in the number 1 slot. You may find that you have a blown fuse and that is why the harnesses you have installed do not work. If the fuses all check out okay, I recommend using a circuit tester like part # 40376 and have someone run through the functions while you test...
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  • What Can I Do if I Do Not Cannot Clear My Rear Bumper with the Swagman XTC4 # S64665?
  • I am so sorry about your rack not fitting! If you are having a bumper clearance issue with your Swagman XTC4 Bike Rack for 4 Bikes # S64665, the best solution is to get a hitch extender to extend the length of the XTC4's shank. For this route, I recommend the Hitch Extender For 2" Trailer Hitch Receiver 7" # HE06. The Brophy extender will give you 7 additional inches of length to clear your rear bumper of your 2021 Subaru Forester. This extender is the shortest extender that we have that...
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  • No Function on any Right Side Lights on Trailer Behind 2010 Subaru Forester
  • I have found the best way to find a bug in an electrical system is by process of elimination. Eliminating possible sources will eventually lead to the right spot. First thing I would do, is check the 4-Way connector on your Subaru Forester. Using a circuit tester like part # PTW2993 or a 4-Way tester like part # F5CT or part # I26. The white wire is ground, the yellow wire is left turn and brake, the green wire is right turn and brake, and the brown wire is taillights. Chances are, the...
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  • Troubleshooting Hoppy Trailer Harness Part 33855 on a 2001 Subaru Forester
  • Use a circuit tester and go to the plug on the vehicle that you connected the harness to. Disconnect the trailer harness. Look at the picture I have linked below. In the picture, the pin on the top left corner should be the left blinker pin. Test this pin on the vehicle connector. Have someone activate the left blinker. If your circuit tester flashes with the blinker, then the Hoppy harness is probably bad. If your circuit tester does not flash, then there is a problem on the vehicle....
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  • Fitment of Konig Premium Self-Tensioning Snow Tire Chains for 2019 Subaru Forester
  • The manufacturer does show the Konig Premium Self-Tensioning Snow Tire Chains, # th02230k45 to be a confirmed fit for the 2019 Subaru Forester equipped with 225/55-18 tires although you may need to remove a link for custom fitment. Please note the linked product installation video walking through the needed steps and verify that you have the needed count of links.
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  • Left Trailer Taillight Malfunctions When Headlights Are Switched On
  • What you describe is a classic symptom of a poor ground connection. Everything works fine, until the vehicle headlights or running lights are switched on. When this happens, the maximum amperage load is being drawn which is when a ground problem rears its ugly head. You'll want to check the ground connection for the trailer connector on the tow vehicle, the main ground on the trailer tongue and the ground connection for each of the trailer taillights. Make sure the ground connection is...
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  • Troubleshooting 2012 Subaru Forester Curt T-Connector Not Sending Power to Trailer
  • It sounds like you have the Curt T-Connector # C56040 installed on your 2012 Subaru Forester but the 4-Way trailer connector end doesn't have power to the different pins. If this is the case then I recommend using a Circuit Tester # PTW2993 to make sure you have power to the different functions going into the Curt module (box) and not just the power line where the fuse is at. If you see the functions working properly going into the box, but not coming out of the box then that means the...
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  • Is It Safe to Use My Yakima SkyBox 16 on My Inno Aero Crossbars?
  • I have a solution for you. The question that you saw was correct that the Yakima SkyBox 16 # Y07335 will fit the Inno Aero Crossbars on your 2020 Subaru Forester. However, from the photos you provided, one of the mounts doesn't look like it's sitting on the crossbar completely. You may need to adjust the position of the mount and move the box or the mounting hardware into position. In addition, you can loosen the knob that allows a single mount to slide up and back to get the mounting...
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  • Longer T-Bolts For The Thule UpRide Roof Mounted Bike Rack
  • Your Thule UpRide Roof Bike Rack - Wheel Mount # TH599000 uses a M6x35mm T-bolt # TH33RV. If your bolt is too short, you could use the longer Replacement 65 mm T-Track Screw for Thule ProRide XT and UpRide Roof-Mounted Bike Racks # TH86VW. This bolt measures 65mm long and would provide much more length for your Thule UpRide to be able to mount to your 2022 Subaru Forester. You'll also want to make sure the T-bolts are properly situated in the tracks on your roof rack, and that the barrel...
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  • Troubleshooting Tail Lights on Trailer Only Work When Running Lights Are Turned Off
  • I tend to think it's a ground issue or potential short on your vehicle side wiring. Make sure that the vehicle side and trailer side connectors are clean and free of corrosion inside and out. The main connector ground should be attached to clean and corrosion free bare metal surfaces. Also, I would check the grounds for each of your tail lights. If the trailer has an aluminum frame, tilt bed, or folding tongue, any of these things can interrupt the ground. Running jumper wires from the...
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  • Troubleshooting Scrubblade Windshield Wipers Streaking On a 2015 Subaru Forester
  • I have a couple things you can try to resolve the streaking issue you are having with the Scrubblade Wipers # SC94FR and # SC77FR. First you will want to ensure your windshield is clean and does not use any repellants such as Rain-X or ceramic coatings. You can also try flipping the blades 180 degrees as this is found to help in most applications. You can do this by removing the connector clipped to the blades and reinstall them 180 degrees. If you find neither of these solutions help...
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  • One Trailer Light Not Working After Wiring Harness Install on 2016 Subaru Forester
  • If the yellow wire is bad on the # 118467 it could account for no light coming on, and I do assume you are referring to the trailer light and not the light on your Forester. The first thing to do is take a look at your owner's manual to locate any trailer fuses or relays and ensure they are all there and in working order. If they are, in order to determine the specific problem you will need to purchase a circuit tester if you do not have one - the very handy Cordless Circuit Tester # PTW2979...
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  • Troubleshooting Plastic Endcaps That Won't Stay In Place On Rhino-Rack Vortex Crossbars
  • Regarding the endcaps popping out on your Rhino-Rack Vortex Aero Crossbars - 49" # RRVA126B-2, this is not a common occurrence and I have not heard of this happening before. Make sure the rubber strip, or anything else for that matter, is not getting caught between the crossbar and endcap. Then make sure you are fully pushing the plastic endcaps into place and locking them all the way with the included key. If you are still having issues then let me know and we can dig deeper into the issues...
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  • Troubleshooting Trailer Wiring of 2013 Subaru Forester, Fuse Blows with Headlights and Brake Pedal
  • The inline fuse of the Curt T-Connector Vehicle Wiring Harness # C56040 is for the amperage draw of the converter box. When you have the headlights on and press the brake pedal you essentially are asking the box to draw the maximum amount of amperage it will ever draw since basically you'll be lighting up every light on the trailer. So what's most likely happening is that your trailer is drawing too much power for the wiring harness. This isn't uncommon and is most likely true if your...
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  • Troubleshooting Turn Signal and Brake Lamp Circuit in Trailer Taillight Wiring
  • The first thing you'll want to check is the trailer connector on the vehicle. You can use a circuit tester like # PTW2993 on the pins for the right/left turn as a helper activates them. If you're getting signal for right/left turn and the brake lamps on the pins of the 4-pole trailer connector fed by the yellow and the green wires, then the problem exists in the trailer wiring. If you're not getting signal on those pins, be sure that the taillight converter harness has been plugged in...
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  • TRAILER LIGHTS REMAINING ON AFTER 2010 SUBARU FORESTER HAS BEEN SHUT OFF
  • It sounds like the converter box is not stopping the power coming from the vehicle to the trailer. I suggest checking your trailer wiring on any of the trailers you have connected wiring to before you pull them again. Bad trailer wiring is typically what will cause the malfunction. A wiring problem on one of the trailers has likely caused the converter box to short out. The converter box did what it was supposed to do by preventing back feed to the vehicle wiring. The short has allowed...
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  • Trailer Lights on 2 Different Trailers Do Not Work When Connected to a 1999 Subaru Forester
  • It is possible that there is an in-line fuse somewhere back from the 4-Way end on your 1999 Subaru Forester. You will need to follow the wiring back as far as you can to determine if there is indeed a fuse. If you cannot find one, then consult the vehicle owner's manual for all of the fuses/relays in the vehicle associated with the wiring harness. Some vehicles have wiring fuses under the hood and inside the in-cab fuse panel. If you have an aftermarket harness like # 33855 then you can...
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