Dim Trailer Lights On 2010 Volvo XC90 Using the Curt T-Connector Harness C56045

Published 10/03/2019

Question:

Hi I just installed a Curt 56045 to my 2010 Volvo XC90 3.2. When testing I get a very faint light on the left trailer blinker but nothing on the right side. No running lights. I went back and checked my install procedure and I think I filled the directions to a T. I also hooked my trailer up to my other vehicle and the trailer lights work fine. Since all the connections are snap ons and the red power ring is fairly obvious it obviously has some power. The only thing I can think of is the ground. Any suggestions?

asked by: Russ S

Expert Reply:

Yes, the dim lighting on your 2010 Volvo XC90 while using the Curt T-Connector Vehicle Wiring Harness part # C56045 is almost undoubtedly caused by a poor ground. I recommend you choose a new spot on the underside of the vehicle and sand this down first. If you still have issues make sure you have a full 12 volts going into the converter box. If not, check your connection on the red wire to the battery.

expert reply by: Conner L