Troubleshooting No Reverse Light Circuit Present at Rear of Truck 7-Way

Question

Question:

I have reverse lights on my fiver but they don’t light up when I put my truck in reverse. I have a 7 pin connecter which I believe is wired correctly because all other functions work. Any ideas, thanks!

asked by: David M

1

Helpful Expert Reply:

It's not totally uncommon for the reverse light circuit of a 7-way to not be active. I'd recommend using a circuit tester like part # PTW2993 to test the center pin of your 7-way for voltage when the vehicle is in reverse to see if it lights up.

It could be as simple as a blown fuse or the circuit may not be present at all which would require you to run wire to the reverse light circuit of the tow vehicle.

expert reply by: Jameson C

1

Answer 1

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Answer 2

I can certainly help you with that. Since the Curt T-Connector Vehicle Wiring Harness, part #C55384 is a 4-way connector the four functions will be Yellow for the left turn and brake, Green is for right turn and brake, Brown is for running lights,…

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Answer 3

It sounds like there is a short circuit that is overloading the running light circuit in the tow package wiring on your tow vehicle. The most likely culprit is a dirty or corroded trailer connector on the vehicle or trailer if not both. The first…

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Answer 4

It sounds like you wired the brakes into the combined stop/turn signal circuit on the trailer. Trailers use what is called a combined system meaning that the brake lights and turn signals are on the same tire. So when you are using the turn signal…

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Answer 5

It sounds like you need to add a 7-Way RV style trailer connector to your 1997 Chevy pickup. Since you already have a connector, you will just need to add a 4 and 7 Way Installation Kit, #ETBC7. Though I am not certain if you have a 5-Way flat…

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Answer 6

There are two types of lighting circuits for vehicles and trailers which are separate systems and combined systems. A separate system will have a separate wire for the brake and turn signals whereas a combined system will have a single wire for the…

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Answer 7

There are a few different causes for the steering wheel to shake while towing. The tires as you mentioned could be out of balance but they would have to be pretty far off in order to shake the vehicle's steering wheel. The way the trailer is…

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Answer 8

The AxleTek #AKHD-655-35-EZ-K hub is manufactured overseas in China. For a compatible hub/drum that's manufactured in the USA, take a look at the trailer hub and drum assembly, part #84656UC3-EZ from Dexter Axle. This hub is compatible with the…

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Answer 9

The 1/8" of lateral movement on the hub does not seem right. It sounds like it is possible the bearings in the hub may not be the correct size for your spindle. The best solution is to double check the bearings and measure the spindle with…

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Answer 10

The bearings and grease seals that are included with the Trailer Hub and Drum Assembly part #AKHD-545-35-EZ-K are manufactured by Axle Teknology LLC.

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Answer 11

You might be able to use the Hopkins #41157 if your 7-way is capable of unplugging from the wiring harness. If you take a look at the install video for the 41157 (click provided link), you can see how the harness unplugs from the back of the 7-way.…

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Answer 12

The reverse light pin on a traditional 7-way trailer connector, like part #PK11893 or a factory connector if that's what you have on your 2018 Ram, is the center pin. Take a look at the picture I attached that shows all the pin functions. To add…

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Troubleshooting No Reverse Light Circuit Present at Rear of Truck 7-Way

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