Expert Answers about Toyota Sienna

• 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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• Troubleshooting 4-way And 7-way Connector On A 2012 Toyota Sienna
• You have narrowed your problem down to your tow vehicle. Since your camper's lights work when it is hooked up to a different tow vehicle, it is on your vehicle side. You will need to check the connections of your Adapter 4-Pole to 7-Pole and 4-Pole, part # 37185. This will require a circuit tester, part # PTW2992. I would check your grounds to make sure they are touching bare metal, paint can interfere with this connection. You can use the circuit tester to check the outputs from your 4-way...
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• Trailer Brake Lights Not Working when Connected to a 2006 Toyota Sienna
• You can test trailer wiring harness # 118304 to determine if it is the problem or if the issue is somewhere else. You can use a circuit tester such as # PTW2993 or a meter if you have one to perform this test. Have someone sit in the vehicle and press the brake pedal. At the same time test the pins on the 4-Way, specifically the 2 that are the furthest from the exposed ground pin. If you are not getting power there when the brake pedal is pressed, then make sure your stoplight/CHMSL fuses...
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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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• Faulty Left Directional and Brake Lamp on Trailer Towed by 2004 Toyota Sienna
• In order to diagnose the problem, you will first want to test the trailer connector on the Sienna. Use a circuit tester like part # PTW2993. Check the socket that corresponds with the yellow wire which carries the driver's side brake and directional signal. If you get a signal at this location with both functions activated, the problem exists somewhere on the trailer. Start at the connector on the trailer, inspect it for damage or corrosion and replace or clean if necessary. Trace that...
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• Is a Fuse Needed for Center of Pin on Isolation Solenoid # PK5231201
• It isn't necessary to run a fuse to the center pin of the Isolation Solenoid part # PK5231201 as this circuit simply closes the circuit between the two pins on the outside posts of the solenoid.
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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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• 2000 Toyota Sienna With Low Voltage At 4 Pole Plug
• The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector Item # C55418 on your 2000 Toyota Sienna with low voltage at the plug is most likely a ground issue. Follow the ground wire from the converter box to where it is grounded to the vehicle. If the self tapper was used, make sure the self tapper did not back out a little. Sometimes if the metal is not thick, the self tapper may not get tight enough and the ring terminal will be able to move. If this is the case re-locate...
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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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• Compressor Not Working on 13,500 Btu Advent Air RV Air Conditioner
• I reached out to my contact at Advent and he said that if your compressor isn't working but it is getting the proper voltage then you will need to replace your AC unit # ACM135C. Since you said you purchase this a year ago I would try to see if the 1-year warranty applies.
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• Zip Strip on Yakima SwingDaddy # Y02464 Not Long Enough to Secure Electra Tiger Shark Cruiser
• I spoke with my contact at Yakima and they do not make a longer Zip Strip for the SwingDaddy but I do have a solution for you. I recommend using the Swagman Bike Adapter Bar, # 64005. Not only will this allow you to secure your Electra Tiger Shark Cruiser to the rack but it will allow you to do so without touching the frame. Check out the video that I have attached.
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• Low Voltage on Pollack 7-Pole Trailer Connector Right Turn Signal Pin on a 2002 Toyota Sienna
• On the back of the connector where the wires attach check for dirt and corrosion and clean any that you find. You may need a new connection there so cut the wire, strip off some of the insulation, and reconnect after cleaning the connector. Do this for any of the wires that appear to need it. Also check the main ground from the connector to the vehicle. It should be attached to a clean and corrosion free bare metal surface. You can also try moving the ground to a different location on...
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• Replacement Trailer Wiring Harness for a 2000 Toyota Sienna with Original Harness Not Working
• You are correct, if you have power going into the converter box and not coming out of the converter box you, for any one of the trailer lighting functions, will need to replace the converter. Although the converter does not look the same it preforms the same function, combining the separate brake light signal and turn signals on your vehicle on to the same wires going to the trailer lights. The Hopkins Custom Fit Wiring Harness, item # 43475, will install inline with the connectors going...
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• Trailer Running Lights Stay On with Vehicle Off Using Curt T-Connector On a 2013 Toyota Sienna
• It sounds like you are referring to the Curt T-Connector Vehicle Wiring Harness part # C56106 on your 2013 Toyota Sienna. If that is the case then what you need to do is test the brown wire before it reaches the converter box. If this was power without the running lights on then you have an issue with the vehicle wiring. However, if this wire does not have power unless the running lights are on then test the brown wire after it leaves the converter box. If it has power without the running...
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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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• How to Eliminate Vehicle Sag and Bottoming Out when Towing a Boat with a 2010 Toyota Sienna CE
• I am sorry to hear you are having problems towing your boat with your 2010 Toyota Sienna. There are a couple of solutions that may work for you. The best and safest way to eliminate the sag at the rear of your vehicle, that occurs when the boat trailer is hooked up, is to use weight distribution. Weight distribution will transfer the tongue weight from the trailer tongue to the vehicle and boat trailer axles and keep the boat trailer towing level, which will eliminate the bottoming out...
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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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• Key Won't Turn Inside Thule Pulse Alpine Cargo Box
• If you're having trouble with the locking mechanism on your Thule Pulse Alpine Cargo Box I recommend using some black graphite powder to see if that helps free the lock. If not, try tapping on the box near the lock housing while simultaneously turning. If worse comes to worse you can replace the lock core using the Replacement Lock Cylinder and Premium Key for Thule One-Key Systems part # TH44ND, you'll also need the Universal Change Key for New Thule Locks with No Serial Numbers part #...
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• Troubleshooting Metal Tab Preventing Malone Crossbar From Install for AirFlow2 Roof Rack
• That metal tab should be lined up with the plastic piece sitting right next to it. I went out to our video studio and messed with a set of the Malone AirFlow2 Roof Rack # MPG216 and found that if I pressed up on the smaller clamping piece (see attached) it would help put everything in-line, but it did take some shifting around. I also spoke with Evangeline on our video team and she said they've experienced that metal tab breaking by getting stick in a fixed position as well so that might...
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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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