Expert Answers about Toyota Sienna

• Troubleshooting Draw-Tite Trailer Hitch 76112 On 2020 Toyota Sienna XLW AWD Hitting Tailpipe
• I am sorry to hear that the tailpipe on your 2020 Toyota Sienna XLW AWD is contacting the Draw-Tite Trailer Hitch Receiver # 76112 you installed. There is not a lot of space on your vehicle between where the tailpipe sits and the trailer hitch receiver installs, so this is not an unheard of issue. We actually have made a help article that goes over a few of the best ways to correct such an issue. I recommend starting with bending the hanger as it has no cost involved and can give you...
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• Troubleshooting 7-way Installation That Blows 12V Power Fuse Without Trailer Connected
• The most likely cause for your Sienna to blow the fuse on your +12V auxiliary trailer power feed is a short somewhere in that circuit. The short could be caused by a wire that rubs on the frame and that has damage to its insulation or even by corrosion inside the 7-way trailer socket. If the wiring is new then it is more likely to be a short from a pinched wire but if the wiring has been in place on the Sienna for some years then it may be a corrosion issue. Trailer connectors, including...
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• Troubleshooting 4-Way to 5-Way Vehicle Adapter Connector And Reverse Lockout On a 2004 Toyota Sienna
• First I recommend checking the connector for the blue wire of the Curt Trailer Connector Adapter # C57187 to ensure that it is getting power when your 2004 Toyota Sienna is switched into reverse. The Test Light # PTW2993 can be used to confirm that you are getting power. If you do not have power you will want to check that the reverse lights are working and if not check the fuse located in your fuse box. Once you have confirmed that you do have power at the connector on your Sienna you...
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• Tap Size One Size Bigger than M12 - 1.25 for Hitch Install with Stripped Nut
• I would retap the threads with the next size up. Which from my research would be M12-1.5. If you are still unsure you can take the bolt you have with you to a hardware store, tell them you are in need of a tap that is the next size up, and they will set you up.
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• Exhaust Pipe of 2006 Toyota Sienna is Rattling Against Hitch
• The Curt # C13105 is indeed a fit for your Sienna. Here's how the exhaust can rattle against the hitch, even if the correct hitch has been installed. The exhaust system at the rear of the car is attached to the vehicle using rubber isolators and easily bendable exhaust hangers. Because of this, the actual position of the exhaust system can vary a bit from vehicle to vehicle. When the hitch is installed, its position will not vary from vehicle to vehicle. The large tolerances in the exhaust...
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• Should Grease be Used to Fill Space Inside After Hub Installation
• When installing your Easy Grease Trailer Idler Hub Assembly for 2K Axles - 4 on 4 - Pre-Greased # AKIHUB-440-2-EZ-1K there should not be any "play" or space. Since it is pre-greased, more grease is not needed. I recommend checking your spindle to make sure this hub is correct. It uses a # L44643 inner and outer bearing, so your spindle should measure 1" where both bearings ride. I have attached a helpful article on replacing/packing bearings, as well as a video showing the process and...
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• Troubleshooting Trailer Wiring Where Turn Signals Cause Dim Activation of Other Trailer Lights
• It's either a weak ground or the converter box is bad and would need to be replaced. It sounds like the grounds have been checked so what I would recommend is using a circuit tester like part # PTW2992 to test all of the pins on the 4-way to see if there's any voltage when the blinkers are on. If not the problem is a weak ground. If so, the converter is bad and you'd need to replace the trailer wiring harness.
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• How Would Furrion Vision S System Wire Escape Travel Trailer with Taillights Above Rear Windows
• We have not had the chance to install the the Furrion Vision S system like the part # FOS05TASF on an Escape travel trailer that was not pre-wired but it's not uncommon at all to install these kits on RVs that are not pre-wired. Since there are taillights ran to the area above the rear window, you'd want to use the running light circuit that runs to them for the activation circuit of the camera.
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• Recommendation of Tow Ready T-One Vehicle Wiring Harness # 118498 For 2011 Toyota Sienna
• Since you said that there are issues with the harnesses you purchased, and if the converter is bad on the harness you have, you will need to replace the harness with a suitable replacement. Make sure the wiring on the vehicle is operating correctly and there are no issues that would cause problems with adding a harness for your trailer. A short in the wiring on a trailer can cause issues, so you then need to check the trailer connector and make certain it is not damaged. Check the wiring...
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• Low Voltage Into Converter Box of T-One Wiring Harness 118498
• Thanks for all that info and since you are getting low voltage going into the converter box of the T-One Wiring Harness # 118498, my best guess is a finicky ground. If you grounded it via an existing screw, that needs to be connected to a clean metal surface - including no paint. If you did that ground methold I would also try using a new ground with the self-tapping screw provided instead of an existing screw, as that may help. I have also added a link below to a help article on 4-way...
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• Can Brake Controller Cause Transmission Problems on 2007 Toyota Sienna
• I've never heard of this being the case and brake controllers, like the Prodigy P3 # 90195, are designed to protect the vehicle wiring. The easiest thing to do in this situation is to unplug the wiring from the back of the controller and see if that resolves the issue. If it does then something seriously wrong has happened to the brake controller but if you still get that error code then it just proves the point that the brake controller isn't cause that kind of issue. The cold side of...
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• Troubleshooting Trailer Wiring of 2009 Toyota Sienna with No Stop/Turn Circuits
• It sounds like a converter box issue on your setup. Can you test for voltage feeding into the box and coming out of the box? I'd be willing to bet you'll find it's going into the box fine but not coming out which means it has an internal short and would need to be replaced. We've found that the most reliable trailer wiring brand is Tekonsha so I would recommend replacing what you have with the part # 118304.
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• Troubleshooting Trailer Light Fuse that Keeps Blowing in a 2016 Toyota Sienna
• A 30 amp fuse will likely fix the problem of the fuse blowing but fuses are meant to safeguard against wiring overheating it would be dangerous to do so and could result in a fire. It sounds like you simply have a short somewhere. Start off by checking the connector on your 2016 Toyota Sienna and your trailer. Clean out any debris or corrosion and apply some dielectric grease like part # 11755 to help keep them clean and protected. If your connectors look good then you need to check the...
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• Troubleshooting Trailer Lights Not Working
• In order to troubleshoot the left side of your trailer's lights not working you'll need to use a circuit tester such as # PTW2993 to test the connector on your '05 Sienna AFTER disconnecting it from your trailer. Check the wiring going into your harness from your taillights to see if those wires are carrying the correct signals, if not then the issue is with the vehicle wiring. If the signals going to your harness are okay, you'll need to test the signals coming out of the harness, and...
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• Trailer Brake Lights/Turn Signals Not Working After Installing Wiring Harness on 2006 Toyota Sienna
• To determine if the issue is on the trailer or the 2006 Toyota Sienna you will first disconnect the trailer from the van. Then use a circuit tester such as # PTW2993 to test the vehicle side wiring. First test the wires going into the converter box on harness # 118304 from the vehicle. Have someone sit in the cab and run through the light functions while testing the wires. If there is no power on the input wires for brake lights or turn signals, then there is something wrong with the vehicle...
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• Troubleshooting No Running Lights with Trailer Wiring Harness Installation on 2013 Toyota Sienna
• I could not find purchase history for you to confirm which wiring harness you have but the linked page will show you those we offer from Curt and Tow Ready, parts # C56106 and # 118498. The most common cause for some lights (in your case stop and turn) to work but not running lights is a bad ground connection either on the vehicle or on the trailer. Since running lights stay on they will draw more current than blinking turn signals or brake lights that are often on for short times. A weak...
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• Troubleshooting T-One Tee Connectors Not Fitting a 2016 Toyota Sienna
• Thank you for the photos! The T-One Vehicle Wiring Harness # 118498 you purchased is for a 2016 Toyota Sienna SE, but the connectors you have in your photos look like you have a non-SE model so you'll need the Curt T-Connector Vehicle Wiring Harness # C56261 instead. If you look at the connector photos for the Curt wiring they seem to match with the photos you sent in. I'm also linking an installation video on a 2016 Sienna (non-SE) for you to check out.
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• Troubleshooting Trailer Running Lights that Arent Working
• The first step to troubleshoot your problem would be to determine if the wiring problem exists with the vehicle or the trailer. Turn on the vehicle headlights, and use a circuit tester like part # PTW2993 on the pin on the trailer connector that feeds the running light circuit. If your vehicle has a 4-pole connector, test the pin being fed by the brown wire. If you are dealing with a 7-way connector, you would test the pin in the 11:00 position. If the tester indicates voltage on the...
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• Can't Thread in Trailer Hitch Bolts on a 2009 Toyota Sienna
• It sounds like you have corrosion compacted in the weldnuts on your 2009 Toyota Sienna. All you can do is spray the lubricant, let it sit from about 15 minutes, and then go at the weldnuts with a wire brush. Do this repeatedly. If that doesn't help you will likely have to use a thread tapper. An auto parts store can usually loan out a tap and die set. Just make sure that the set has the right M12 size and thread pattern to match the bolts. If you haven't used a thread tapper before then...
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• Troubleshooting a Draw Tite Activator Brake Controller That is Not Sending Brake Output
• Testing the brake controller is fairly easy. Sever the blue brake output wire near the brake controller leaving enough room to reconnect it and then apply the manual slide. Using a circuit tester like part # PTW2993, you should get output to the controller side of the wire you severed. If the manual slide activates the trailer brake output wire properly, try the brake pedal. If the brake pedal activates the brake output properly also then the problem is farther back either in the vehicle...
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