Troubleshooting Curt T-Connector # C56403 With Power Always On Green Wire/Right Trailer Light

Question

Question:

Hey guys, I just installed my eco hitch, and all went flawlessly. I have installed my Curt wiring controller in my 2018 VW Tiguan, and I have power to the green wire all of the time. No flashing, when turn signal is activated. This is all tested using a test light. What should I check next?

asked by: Frederick D

0

Expert Reply:

First you will want to use your Test Light # PTW2993 to test for power going into the Curt T-Connector # C56403 on your 2018 Volkswagen Tiguan. This will allow you to determine if the module is somehow getting a signal or if the module itself is defective. If you do not have power on the green wire going into the module but have power on the green wire coming out of the module you know the module is defective.

If the green wire does have power you will want to check the connectors to ensure none of the pins inside that portion of the harness got bent and are creating a short inside the connector.

Please let me know if these all check out or what you find by testing the wiring going into the Curt module.

expert reply by: Bud M

0

Answer 1

I suppose it is possible to wire the Curt T-Connector Vehicle Wiring Harness part #C56403 to a lawn mower battery in the trunk area of your vehicle so long as it is 12 volt but I don't really think that is the best way to install the above. The…

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Answer 2

You are testing correctly for the left and right turn signals, but the 3rd female plug you are testing is the taillight circuit. If you turn on the running lights you should get 12 volt power at the connection that the brown wire runs into. To test…

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Answer 3

In my experience I have found the T-One Vehicle Wiring Harness #118811 to be the better 4-way wiring for your 2022 Volkswagen Tiguan. The internal components in the powered converter do not go out as often as those in the Curt T-Connector #C56403.

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Answer 4

It isn't the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector #118811 being bad (if that's what you were referencing by "the connector itself"); if that was the case nothing at all would be working as it's the…

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Answer 5

Thank you for your recent purchase of a Curt trailer wiring harness #C56165 and 4 Pole to 7 Pole and 4 Pole Adapter #C57674. LEDs take very little power to illuminate. Some wiring harnesses can pass a tiny amount of power at all times - even when the…

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Answer 6

I would begin by testing the trailer connector on the vehicle to rule that out. Turn the headlights on, and use a circuit tester like part #40376 to test the socket on the connector fed by the brown wire. If you are not getting a signal on this pin,…

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Answer 7

When you test the 4-Way on the Curt T-Connector Wiring Harness, part #56016, at the rear of your vehicle, it should show now power on all 3 pins with the lights off. If you have the vehicle head lights on, you should have around 12 volts at the brown…

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Answer 8

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 9

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 10

Yes, we do. To add a hitch to your 2024 Toyota Grand Highlander, I recommend the Curt Trailer Hitch item #C26VV. This hitch is custom fit and bolts to your Toyota with included hardware. This is a class III hitch with a 2" receiver. It has a…

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Answer 11

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

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Answer 12

Class I and Class II hitches both have a 1-1/4 inch receiver opening. The difference is that a Class I hitch has a lower tongue weight rating, usually 200 pounds and a lower towing rating, usually 2,000 pounds. A Class II hitch usually has a tongue…

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Troubleshooting Curt T-Connector # C56403 With Power Always On Green Wire/Right Trailer Light

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