If your trailer or tester utilize LED lights that is likely the issue. The factory 7-way on your 2012 VW Touareg wasn't designed to function with LED's without the adapter # C57003 which has integrated load resistors to allow LED's to not trigger lamp out sensors. This also helps with the emergency flashers.
If your trailer and tester are not LED, then you may have an internal issue with your 7-way and you can use either # A10-7072VP or # HM40975 to replace it. Before replacing, I... view full answer...
I would start with checking the white ground wire that got grounded to your 2014 Volkswagen Touareg, as this is a pretty common issue when a ground does not have a good connection. Make sure the ground is secured to clean corrosion free metal.
Next remove both of the tail lights on your vehicle, and check that the pins inside of the connectors of the # 118668 are not bent or damaged.
If all of those check out, use your circuit tester to check the yellow and green wires coming into the... view full answer...
Based on what you are describing yes, the 7-Way to 5-Way/4-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs # C35FR.
The problem is likely that the LED signals from your trailer are not being read by your vehicle's computer. Adapters like this one use built-in resistors to solve that problem. If you need a 7-way the Curt 7-Way Trailer Adapter for Towing Trailers with LED Lights # C57003 is also available. view full answer...
If no trailer is connected and you test the brake pin on the 7-Way, there should be only be a tiny amount of voltage because that is how the controller senses if there is a trailer. But 3.5 volts sounds too high. If this is occurring without the brake or manual override engaged then there is something drawing power on the blue wire (short to blue wire).
If this happens when you use the manual override, then the power sent back will only go as high as it is set. To determine if the brake... view full answer...
The easiest way to see if the # FR87PR adapter will work for you is to use a multimeter like # PT89ZR on the running lamp pin on your 7-way (pin in the 11:00 position) while the running lamps are switched on. If there isn't at least 300mA coming from that pin, then in that case the # FR87PR would fix your problem. If you're getting enough power on that pin, then something else is causing the issue. I'd recommend ensuring that the antennas are fully screwed in. If they are, try repositioning... view full answer...
I think a simple adapter may solve your problem. Since your trailer with LED lights has a 4-Way flat connector, you will need the 7-Way to 5-Way and 4-Way Trailer Adapter for VW, Audi and Porsche Towing Trailers with LED Lights # C35FR. This adapter has load resistors that provide additional power draw so the vehicle thinks there are incandescent lights on the trailer.
If the adapter doesn't solve it, there is most likely a wiring issue. I've attached an article to help you troubleshoot,... view full answer...
A 7-way trailer socket like # 37185 on a vehicle includes a 12V auxiliary trailer power circuit that is intended to maintain a charged battery installed on the trailer while you drive. This power feed cannot charge a depleted battery but it can maintain one that is already well-charged. If you refer to the linked photo of a 7-way vehicle socket you will note this circuit is carried on the pin at the 1-o-clock position as you view the socket.
Some vehicle electrical systems will have this... view full answer...
From my research it looks like there is a fuse missing or blown in your 2015 Volkswagen Touareg TDI causing the 12v auxiliary power pin to not have the power needed to power your Curt Echo Wireless # C51180.
I was not able to find the specific fuse, but it should be in the engine bay fuse box.
It did see some reports that the 12v power pin was actually not connected any fuses, in which cause you would need to use # 10-1-1 with a 30 amp circuit breaker # PK54530 to run from the 1 o'clock... view full answer...
The issue with your Volkswagen with the trailer wiring is the draw on the trailer is not enough. What will solve your dash issue as well as your trailer lighting issue is the 7-Way Trailer Adapter for VW, Audi, and Porsche Towing Trailers with LED Lights # C57003. This adapter is made specifically for what you are describing. view full answer...
I sounds like you may not have power going to the charge line circuit on the 7-way for your 2011 Volkswagen Touareg. You can use a Test Light # PTW2993 in your junction box to ensure you are getting power from your charge line on the 7-way. You will need to test it at the junction box(remove 7-way wire from trailer battery connector) since your Touareg has the smart trailer wiring. The Curt Echo # C51180 receives its power from the charge line which does not send power to your trailer lights.... view full answer...
The SH code on the Prodigy Brake Controller, # 90885, indicates that while idle, the brake controller is sensing a short in the brake wire. Most likely this is due to corrosion on the trailer connector pins so I would recommend cleaning them to see if that helps. If that doesn't fix it you need to look for cut or exposed wire on this circuit most likely on the trailer side of the wiring and clean up as needed. If it's blank now check under the hood for the fuse or relay associated with... view full answer...
I have attached the installation instructions for # 118668 below. I do recommend using a Circuit Tester # PTW2991 for testing your connections. This will help ensure your ground connectors are working properly as well.
I do not see a black wire with green tracer coming out of the black box. The black wire is the 12V constant power. Your output wires are green for right turn/brake, yellow for left turn/brake, brown for running lights and white is ground.
I hope this will help you identify... view full answer...
It sounds like it could be a weak ground. Check to make sure your grounding point on the vehicle is on a nice piece of metal that is clean and free of rust or paint. It is also a good idea to check the connectors coming off the vehicle with a circuit tester # PTW2993 to verify they are in proper functioning order and is receiving the correct voltage.
I have attached a help article to aide you in your troubleshooting. view full answer...
Your 2014 VW Touareg has lamp-out sensors which can cause problems when trying to install the Prodigy RF 90250. Using the Trailer Connector Adapter w/ Lamp-Out Sensor Bypass # 20142 should remedy the problem because it will increase the draw on the system which won't result in an error being shown on your Touareg. view full answer...
Aside from trying to swap out the fuse for the 12V wire with one that you know is good, the only other thing I can really offer is to route some 10 Gauge Wire # 10-1-1 from your battery through a 20A Circuit Breaker # PK54520 and then splice it into the 12V wire for a brake controller on your 2004 Volkswagen Touareg using Butt Connectors # DW05745-5. This will bypass all of your OEM wiring and will get you that 12V power you are needing.
I have attached a diagram of how you would hardwire... view full answer...
It sounds like your back up sensors deactivate when you plug in trailer wiring. This would be to prevent the sensors from going off all the time while in reverse because of them detecting the trailer behind you.
The best solution I can provide would be to install a second 4-way that bypasses the factory one of your 2014 Volkswagen Touareg. For that you would want the part # 118668.
The error message you are receiving is a common problem on German vehicles when they are connected to a... view full answer...
What you will want to do is test the wires going into the box of the converter box for voltage with a circuit tester like the # PTW2993 to see if there is voltage going into the box when the taillight functions of your vehicle are applied, and then test the output side of the box to see if the current is making it through the converter. If not then the problem is that the converter box has shorted itself out and would need to be replaced.
Before you replace it you will want to inspect... view full answer...
The Tekonsha Prodigy RF Wireless Trailer Brake Controller - 1 to 3 Axles - Proportional # TK94FR shouldn't need a relay like some of the other models you mentioned because it is a wireless unit. I have attached the FAQ article about those vehicles to assist. The only other issue I've heard is that sometimes there isn't enough draw on the system, so a work around is to use the Trailer Connector Adapter w/ Lamp-Out Sensor Bypass - 7-Way RV to 7-Way RV - Vehicle End # 20142 to increase the... view full answer...
Trailer wiring harness # 118509 is a powered converter that requires a direct connection to the vehicle battery. If you did not make the connection to the battery or the fuse is missing or blown then it would not show any power on any of the circuits (when activated).
If the connection to the battery is good and the fuse is inserted then check the ground connections (white wire). It must be attached to a clean and corrosion free bare metal surface. No paint or anything. And it works best... view full answer...
The Tekonsha T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118668 you referenced is a confirmed fit for your 2016 VW Touareg. Since you mentioned your turn signals are not working, I recommend you double check the installation and ensure you have a good 12V power connection to your battery and clean metal to metal ground to your vehicle frame or metal body support. I recommend using the circuit tester # PTW2993 to check each function. I've attached a video and an... view full answer...
Go To Results