My 2014 Toyota RAV4 T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
Question:
Hi I put my 2014 Toyota RAV4 T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector and the light on my trailer is not coming on? Why I did my right conections
asked by: Joice
Expert Reply:
To determine if the problem is on the 2014 Toyota RAV4 or on the trailer there are some tests you can do. First, disconnect the trailer for the RAV4. Then use a circuit tester such as # PTW2993 to test the vehicle side connector while someone sits in the vehicle and operates the light functions.
If you do not get power on the connector while testing, then the issue is on the vehicle side. Make sure that the harness white ground wire is attached to a clean metal surface. No paint or coating can be present so you may need to sand down to bare metal.
Also make sure you have the power wire attached to the positive battery terminal and that the fuse is installed in the fuse holder. Also check the fuse and replace if it is blown. If everything is installed correctly, the ground connection is good, and the power wire and fuse are good then there must be a problem inside the converter box and the harness will need to be replaced.
If you do find power on the vehicle side connector while testing, then the issue is on the trailer. It is likely a ground issue. Ground problems normally show up when there is more draw on a system such as when you have the running lights on and then use another function like a turn signal or brake light but can show up any time.
Make sure that the vehicle side and trailer side connectors are clean and free of corrosion inside and out. The main connector grounds should be attached to clean and corrosion free bare metal surfaces.
The light grounds should also be attached to clean and corrosion free bare metal surfaces. If there is anything between a light ground and the metal trailer frame or 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 light grounds to the main trailer connector ground can help.
Products Referenced in This Question
Product Page this Question was Asked From
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Powered Converter
- Custom Fit
- 4 Flat
- Tekonsha
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